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Electrolux W365H Service Manual

Clarus control
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Service Manual

W365H, W375H, W3105H,
W3130H, W3180H, W3240H, W3300H
Wascator FOM71 CLS
Clarus Control
438 9201-51/EN
07.45

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Summary of Contents for Electrolux W365H

  • Page 1: Service Manual

    Service Manual W365H, W375H, W3105H, W3130H, W3180H, W3240H, W3300H Wascator FOM71 CLS Clarus Control 438 9201-51/EN 07.45...

  • Page 3: Table Of Contents

    Safety precautions Technical data Machine presentation Overview Programmes Regular maintenance Service Troubleshooting instructions Control unit Programme unit Machine components and parts Door and door lock Motor and motor control Drain valve Detergent compartment Heating Frame Options...
  • Page 5 1. Safety precautions Contents Safety precautions ..................3 Warnings ....................3 438 9144-41/01 00.45...

  • Page 7: Safety Precautions

    Service Manual 1. Safety precautions Safety Precautions • The machine is only intended for washing with water. • Do not allow minors to operate the machine. • Installation and maintenance work should only be done by authorized persons • Do not bypass the door lock of the machine. •...
  • Page 9 2. Technical data Contents Technical data ................... 3 Physical features .................. 3 Connections ..................4 438 9144-61/03 07.45...

  • Page 11: Technical Data

    Service Manual 2. Technical data Technical data Physical features Model types Washer extractor W365H/ W375H W3105H W3130H W3180H W340H W3300H FOM71 CLS Inner drum Volume Diameter Depth Capacity, dry weight Filling factor 1:10 kg 10,5 Filling factor 1:13 kg 13,8...

  • Page 12: Technical Data

    Service Manual 2. Technical data Connections Model types Washer extractor W365H W375H W3105H W3130H W3180H W340H W3300H FOM71 CLS Motor input During extract cycle at nominal voltage No load, no imbalance 1040 1700 1600 1440 Nominal load 1150 1470 100...

  • Page 13: Machine Presentation

    3. Machine presentation Contents Description ....................General ....................Function ....................4 General ....................4 Programme unit ..................5 Motor and motor control ............... 6 Door lock ....................7 Heating ....................8 Water connections ................8 Rear control unit ................... 8 Detergent compartment ...............

  • Page 15: Description

    Manual 3. Machine presentation Description General The machines covered in this manual include: Fig. Drum volume Model type (litres) W365H, Wascator FOM71 CLS W375H W3100H W3130H W3180H W3240H W3300H The programme unit contains a microprocessor with a number of standard programmes for normal wash cycles.

  • Page 16: Function

    Service Manual 3. Machine presentation Function General This section presents an overview of the functions of the machine. Most Fig. functions are then presented in detail in separate chapters in the service manual. Water inlet valves Rear control unit I/O card Detergent compartment Front control unit Motor control...

  • Page 17: Programme Unit

    Service Manual 3. Machine presentation Programme unit The programme unit is made up of the CPU card, Fig. the display card, card reader and one or two I/O Programme unit I/O card cards. The programme unit holds a number of Fig.

  • Page 18: Motor And Motor Control

    Service Manual 3. Machine presentation Motor and motor control A frequency-regulated motor using a drive belt Fig. drives the drum. The motor is situated on a motor Motor control shelf, under the outer drum with a tensioner device for the drive belt. The motor control relies on microcomputer Fig.

  • Page 19: Door Lock

    Service Manual 3. Machine presentation Door lock Door lock control A31 The door lock is an electro-mechanical type with Fig. double safety switches. The lock is bi-stable, i.e., it needs to receive an active pulse from the control in order to both lock and unlock the door. A separate printed circuit board, called door lock Fig.

  • Page 20: Heating

    Service Manual 3. Machine presentation Heating Rear control unit When using electric heating, the water for Fig. washing is heated by three heating elements Contactor K21 Main power switch accessible from the front of the machine. (heating) The machine can also be fitted with steam heating using a steam valve fitted on the rear of the machine.

  • Page 21: Detergent Compartment

    Service Manual 3. Machine presentation Detergent compartment The compartment is divided into four for pre- Fig. Detergent compartment wash, main wash, rinse and bleaching-agent/ liquid detergent. The detergent compartment of the machines is described in detail in section 39. Detergent compartment.

  • Page 23: Regular Maintenance

    11. Regular maintenance Contents Daily ......................3 Every third month ..................3 438 9145-01/01 00.45...

  • Page 25: Every Third Month

    Service Manual 11. Regular maintenance To maintain correct and proper functioning and to prevent interruption of service, the following maintenance scheme should be adhered to. The maintenance interval should be adapted to how frequently the machine is used. Daily • Check the door and door lock: - Let the door remain open and try starting the machine.
  • Page 26 Service Manual 11. Regular maintenance - Verify that all internal hoses do not leak. - Inspect the drive belt. Adjust the tension or replace if necessary (see section 30. Motor). - Check that water does not leak onto the floor. - If the heating time is unusually long, check the heating elements (see section 40.

  • Page 27: Troubleshooting

    12. Troubleshooting Contents General information about troubleshooting ..........3 Precautions ..................3 Measurements ..................3 Errors with no error codes ..............4 Errors with error codes ................ 4 Error indication ................4 Resetting an error indication ............4 Error codes ..................4 Service programme ................

  • Page 29: General Information About Troubleshooting

    Service Manual 12. Troubleshooting General information about troubleshooting The troubleshooting section is used to pinpoint a fault on the machine to a specific defective component or unit. If the power supply is interrupted, the programme memory will keep the select programme in its memory for approx. 3-5 minutes. Within this time period, the machine automatically restarts after the power interruption.

  • Page 30: Errors With No Error Codes

    Service Manual 12. Troubleshooting Errors with no error codes This section includes troubleshooting charts for errors for which no error code is generated. Errors with error codes Error indication Programme or machine errors are indicated by an alarm text in the display Fig.

  • Page 31: Control Unit

    Service Manual 12. Troubleshooting List of errors, functions monitored and relevant error messages displayed Error/Function Error message displayed 01 ERROR. NO WATER Water level has not reached set level within time set. NO WATER After this error message appears and the machine is reset, the machine will try again.
  • Page 32 Service Manual 12. Troubleshooting List of errors, functions monitored and relevant error messages displayed, cont. Error/Function Error message displayed 15 ERROR. EMERGENCY STOP The emergency stop button has been pressed. EMERGENCY STOP 16 ERROR. WEIGHT FROM SCALE Over-/Under-load of scale or weight above limit for maximum allowed WEIGHT FROM SCALE weight at wash module start.
  • Page 33 Service Manual 12. Troubleshooting List of errors, functions monitored and relevant error messages displayed, cont. Error/Function Error message displayed ERROR. ERROR CODES FROM MOTOR This function includes a number of error warnings from the motor control system for frequency-controlled motors (EWD) 31 Temperature of MCU control circuits too high HEAT SINK TOO HOT 32 Motor thermal protection has tripped...

  • Page 34: Service Programme

    Service Manual 12. Troubleshooting Service programme The service program Opening the service programme The service program makes fault-finding on the machine easier, as it allows you to control the If this menu is not currently various machine functions individually: displayed: •...
  • Page 35 Service Manual 12. Troubleshooting To prevent unauthorised or accidental use Unauthorised or accidental use of the service program is prevented by requiring the user to locate PRESS BUTTON ON Press the button on the and press the button on CPU board. CPU BOARD CPU circuit board.

  • Page 36: To Control The Machine Functions

    Service Manual 12. Troubleshooting To control the machine functions SERVICE PROGRAM LEVEL TEMP 22°C SPEED DRAIN CLOSED 01 COLD WATER 02 HOT WATER 03 COLD HARD WATER 04 TANK 1 WATER 05 TANK 2 WATER 06 TANK 3 WATER To activate the various 01 COLD WATER machine functions: 02 HOT WATER...

  • Page 37: I/O Card Inputs

    Service Manual 12. Troubleshooting I/O card inputs Press 1. SERVICE PROGRAM LEVEL Now you can check the TEMP 22°C SPEED various input signals from I/O DRAIN CLOSED board 1. EMERGENCY STOP DOOR LOCKED TEMPORARY PAUSE DOOR CLOSED A black square in front of the REMOTE START UNBALANCE SERVICE...

  • Page 38: Errors With No Error Codes

    Service Manual 12. Troubleshooting Errors with no error codes Programme unit card No indication in the display window (machine not responding or operates apart from this). If the power is on, be very careful when working on the the machine. 3972 Verify that: Green LED...

  • Page 39: Errors With Error Codes

    Service Manual 12. Troubleshooting Errors with error codes NO WATER The water level has not reached the selected level within the given time. Following an alarm and subsequent, the machine will make a new attempt. First verify that: • the programme unit was not incorrectly 3973 programmed Valve...
  • Page 40 Service Manual 12. Troubleshooting Continued from previous page 5. Activate (close) the drain valve in the service programme. Activate another of the water valves and verify the drain valve function. Drain valve OK Drain valve defective Troubleshoot the drain valve according to the instructions under error code WATER IN DRUM later in this troubleshooting section.

  • Page 41: Door Open

    Service Manual 12. Troubleshooting DOOR OPEN No signal from the ”Door closed” during programme operation. If the input signal for ”Door closed” is lost during programme operation, the OPEN DOOR error code is immediately generated. If the power is on, be very careful when working on the the machine.
  • Page 42 Service Manual 12. Troubleshooting Continued from previous page Microswitch S3 4. Disassemble the door lock and verify the function of Fig. S3 using an ohm meter. Correct function Incorrect function Replace S3./Change door lock. 5. Inspect the cabling between X5 and S3 using an ohm meter.

  • Page 43: Door Unlocked

    Service Manual 12. Troubleshooting DOOR UNLOCKED No signal from the ”Door locked” during programme operation. If the input signal for the "Door locked" is lost during programme operation, the "DOOR UNLOCKED" error code is immediately genrerated. At programme start, this error code is suppressed for a few seconds.

  • Page 44: Ntc Low Temp

    Service Manual 12. Troubleshooting NTC LOW TEMP The programme unit indicates an interruption with the temperature sensor or the ° temperature is below -5 Try to restart the machine (i.e. reset the error code) by pressing START. 1. Undo the temperature sensor connections and Fig.

  • Page 45: Ntc High Temp

    Service Manual 12. Troubleshooting NTC HIGH TEMP The programme unit indicates a short-circuit with the temperature sensor or the ° temperature exceeds 98 Try to restart the machine (i.e. reset the error code) by pressing START. Fig. 1. Undo the temperature sensor connections and measure the resistance of the sensor.

  • Page 46: Water In Drum

    Service Manual 12. Troubleshooting WATER IN DRUM Level indication The water level is higher than EMPTY at programme start. SERVICE PROGRAM LEVEL First verify whether: TEMP 22°C SPEED DRAIN CLOSED • the same error appears again following EMERGENCY STOP DOOR LOCKED TEMPORARY PAUSE DOOR CLOSED resetting of the error code...

  • Page 47: Machine Overfilled

    Service Manual 12. Troubleshooting MACHINE OVERFILLED Level indication The water level is above the level for OVERFILLED MACHINE. If this function is SERVICE PROGRAM switched off (=N) the drain valve will open LEVEL TEMP 22°C SPEED instead for a short while to drain some of the DRAIN CLOSED EMERGENCY STOP DOOR LOCKED...

  • Page 48: No Heating

    Service Manual 12. Troubleshooting NO HEATING The temperature has not increased the number of degrees specified in the function MIN ALLOWABLE TEMPERATURE INCREASE (see settings 2) during the time that is programmed in the function MAXIMUM HEATING TIME (Configuration 1). If the power is on, be very careful when working on the the machine.

  • Page 49: Not Drained

    Service Manual 12. Troubleshooting NOT DRAINED The water level exceeds EMPTY at wash program start. Try to restart the machine (i.e. reset the error code) by pressing START. If the error returns, first verify these items: • Is the drain is blocked by fluff or foam? •...

  • Page 50: Unbalance Sensor Fault

    Service Manual 12. Troubleshooting UNBALANCE SENSOR FAULT The imbalance switch is closed during program start. If the power is on, be very careful when working on the the machine. Try to restart the machine (i.e. reset the error code) by pressing START. If the error returns, troubleshoot as follows: Verify: •...

  • Page 51: No Motor Comm

    Service Manual 12. Troubleshooting NO MOTOR COMM. Communication between the programme unit and the motor controller has been interrupted or interfered. If the power is on, be very careful when working on the the machine. Try to restart the machine (i.e. reset the error code) by pressing START. If the error returns, troubleshoot as follows: 1.

  • Page 52: Level Calibration

    Service Manual 12. Troubleshooting LEVEL CALIBRATION The water level system has not been correctly calibrated. Each machine has been individually level adjusted at the factory. If the calibration values are missing or outside the limits, an error is generator at programme start.

  • Page 53: Weight From Scale

    Service Manual 12. Troubleshooting WEIGHT FROM SCALE The scale is all the time sending the actual weight to the timer. If the scale is over- or under-loaded all the time the error will be indicated. The same error will also be indicated if the weight transfered from the scale to the timer at the beginning of a water filling periode, is above a certain limit set in the configuration system of the machine.

  • Page 54: Emergency Stop

    Service Manual 12. Troubleshooting EMERGENCY STOP The emergency stop button was pressed. If the power is on, be very careful when working on the the machine. Find out the reason for the emergency stop button having been pressed. Take the necessary measures. Reset the emergency stop button by turning it counter-clockwise.

  • Page 55: Door Lock

    Service Manual 12. Troubleshooting DOOR LOCK The signal from the ”Door locked ” switch is present although there is no signal from the ”Door closed” switch. This error code can only be generated prior to programme start. If the power is on, be very careful when working on the the machine.

  • Page 56: Start Not Allowed

    Service Manual 12. Troubleshooting START NOT ALLOWED The network does not allow start of the washing programme. Try to reset the error code. If the error remains, contact the responsible person for the network and have the error fixed. 438 9152-11/03 04.03...

  • Page 57: Mis Communication

    Service Manual 12. Troubleshooting MIS COMMUNICATION Communication between the programme unit card A1 and the network has been interrupted. If the power is on, be very careful when working on the the machine. Try to restart the machine (i.e. reset the error code) by pressing START.

  • Page 58: Interlock Status

    Service Manual 12. Troubleshooting INTERLOCK STATUS X302 The motor controller does not receiving an interlock signal during programme operation. If the power is on, be very careful when working on the the machine. Switch off the machine for at least 30 seconds to ensure the motor controller has been completely reset.

  • Page 59: Io Communication

    Service Manual 12. Troubleshooting IO COMMUNICATION Communication between programme unit A1 and one of the I/O cards has been interfered with or interrupted, or incorrect configuration of the I/O cards. If the power is on, be very careful when working on the the machine. Try to restart the machine (i.e.

  • Page 60: Low Oil Level

    Service Manual 12. Troubleshooting LOW OIL LEVEL Low oil level in the oil container. Applies only to machines with oil lubrication. Fill up with oil and restart the machine. Verify for any leaks. 438 9152-11/03 04.03...

  • Page 61: Phase

    Service Manual 12. Troubleshooting PHASE Alarm from the mains monitoring equipment. An input on I/O card 1 (X16:7-8) can be connected to external equipment that monitors received mains signals in terms of voltage levels, loss of phase, etc. If this input goes high, the error message is displayed. Find out the reason for the error indication by inspecting the mains monitoring equipment.

  • Page 62: Aut. Level Calib

    Service Manual 12. Troubleshooting AUT. LEVEL CALIB. Level indication The pressure sensor for the water level signals a value that is so incorrect when the machine is empty that automatic level calibration of the SERVICE PROGRAM level system is not possible. LEVEL TEMP 22°C...

  • Page 63: Level Not Calibrated

    Service Manual 12. Troubleshooting LEVEL NOT CALIBRATED Before the machine is used filling water controlled by the pressure sensor system, the pressure sensor system must be calibrated. The pressure sensor system for water filling can be calibrated in the service mode. It is possible to use the machine in weight mode, filling water on weight, without calibrating the water pressure sensor system.

  • Page 64: No Scale Connected

    Service Manual 12. Troubleshooting NO SCALE CONNECTED Communication between the timer and the scale is not working. Check the wire between the timer and the scale. If still not working, please contact service. 438 9152-11/03 04.03...

  • Page 65: Heat Sink Too Hot

    Service Manual 12. Troubleshooting HEAT SINK TOO HOT The motor controller indicates too high a temperature at the heat dissipator. This error code appears if the external temperature has been very high. It his has been the case, lower the temperature by e.g., ventilation the room.

  • Page 66: Motor Too Hot

    Service Manual 12. Troubleshooting MOTOR TOO HOT Measure the resistance between pins 7 and 9 The motor controller indicates the thermal protector of the motor has triggered. If the power is on, be very careful when working on the the machine. Contactor X3, female towards motor First verify that: 5420...
  • Page 67 X312 contactor at X3 on the motor. Use an ohmmeter to 5181 measure the resistance towards the motor. Measure between 1-2, 1-3, and 2-3. Resistance Contactor X3, female towards motor W365H 4 ohm W375H 4 ohm W3105H 4 ohm W3130H...

  • Page 68: No Interlock

    Service Manual 12. Troubleshooting NO INTERLOCK X302 The motor controller received the rotation command from the programme unit but receives no interlock ACK (”Door locked” signal). If the power is on, be very careful when working on the the machine. Switch off the machine for at least 30 seconds to ensure the motor controller has been completely reset.

  • Page 69: Motor Shortning

    1. Switch off the machine. Undo the contactor at X3 on Fig. the motor. Use an ohmmeter to measure the resistance towards the motor. Measure between 1-2, 1-3, and 2-3. Resistance W365H 4 ohm W375H 4 ohm W3105H 4 ohm...

  • Page 70: Interlock Hardware

    Service Manual 12. Troubleshooting INTERLOCK HARDWARE The motor controller indicates an error in the interlock receiving circuit. If the power is on, be very careful when working on the the machine. Switch off the machine for at least 30 seconds to ensure the motor controller has been completely reset.

  • Page 71: Low Dc Voltage

    Service Manual 12. Troubleshooting LOW DC VOLTAGE X311 The motor controller indicates the DC level is too low. If the power is on, be very careful when working on the the machine. Switch off the machine for at least 30 seconds to ensure the motor controller has been completely reset.

  • Page 72: High Dc Voltage

    Service Manual 12. Troubleshooting HIGH DC VOLTAGE X311 The motor controller indicates the DC level is too high. If the power is on, be very careful when working on the the machine. Switch off the machine for at least 30 seconds to ensure the motor controller has been completely reset.

  • Page 73: Rippel On Dc Bus

    Service Manual 12. Troubleshooting RIPPEL ON DC BUS X311 The DC voltage level fluctuates too much. If the power is on, be very careful when working on the the machine. Switch off the machine for at least 30 seconds to ensure the motor controller has been completely reset.

  • Page 74: Line Interrupt

    Service Manual 12. Troubleshooting LINE INTERRUPT X311 The motor controller is missing a phase. If the power is on, be very careful when working on the the machine. Switch off the machine for at least 30 seconds to ensure the motor controller has been completely reset.

  • Page 75: Klixon Circuit

    Service Manual 12. Troubleshooting KLIXON CIRCUIT The motor controller indicates an error inn the thermal protection circuits of the motor. If the power is on, be very careful when working on the the machine. Switch off the machine and for about 30 seconds. Then switch on the machine again and start a programme.

  • Page 76: Troubleshooting The Keypad In The Display Unit

    Service Manual 12. Troubleshooting Troubleshooting the keypad in the display unit When a key is pressed on the keypad of the programme unit, two of the outputs on the keypad close. By disconnected the flat cable from the display card, pressing a key and the measuring the resistance between the outputs that should close, it is possible to determine correct operation of any one key.
  • Page 77 21. Control unit Contents Description ....................3 Function ....................4 Front control unit .................. 4 Rear control unit ................... 7 438 9145-21/03 02.38...
  • Page 79 Service Manual 21. Control unit Description The control unit of the machine consists of the following parts: Fig. • Front control unit This unit contains two microcomputer controlled electronic programme units consisting of a CPU card A1, display card A2, card reader A3 and one or two I/O cards A11 and A12.
  • Page 80 Service Manual 21. Control unit Function Front control unit Programme unit I/O card 2 The programme unit consists of the following Fig. parts: • CPU card A1 Fig. I/O card 1 The CPU card uses the various control programmes in the card programme memory to check the various functions of the washing machine.
  • Page 81 Service Manual 21. Control unit • I/O cards A11 and A12 Most smaller machines have only one card: A11. The I/O cards are controlled by the CPU card via a serial interface. The I/O cards feature outputs, which, via the communication card in the rear control unit, control various machine functions, such as the water valves, heating connection and drain valve.

  • Page 82: Door And Door Lock

    Service Manual 21. Control unit Door lock control A31 This card serves to perform a safety check of the Fig. door lock function. The card checks the water level using level guard B2 and the drum speed by way of a rotation sensor B3.
  • Page 83 Service Manual 21. Control unit Rear control unit Main power switch Q1 Model with main power switch The main power switch interrupts all received Fig. Heating contactor K21 power phases and is situated on the outside of Main power switch Q 1 the connection box cover.
  • Page 84 Service Manual 21. Control unit Communication card A21 Fig. This card is used to send and receive signals from I/O card 1. It contains: • Fuses F11 and F12 (T 1.25 A) Fig. Protects the received voltage supply in the Communication card A21 timer and door lock controller.
  • Page 85 Service Manual 21. Control unit Communication card A22 Fig. This card is used to send and receive signals from I/0 card 2. It contains: • Input/output connection blocks Fig. Communication card A22 Card No. Function Output (200 - 240 V AC) Liquid detergent 5 Liquid detergent 6 Liquid detergent 7...
  • Page 87 23. Programme unit Contents Description ....................3 Function ....................5 CPU card A1 ..................5 Display card A2 ..................7 I/O-cards ....................8 Input and outputs on I/O cards 1 and 2 ..........9 The service program ................14 To select the "Service program" function ........... 15 To control the machine functions ............
  • Page 89 Service Manual 23. Programme unit Description The programme unit of the machine consists of Fig. I/O card 2 A12 the following parts: • CPU card A1 Fig. The CPU card uses the various control I/O card 1 A11 programmes in the card programme memory to check all the functions of the washing machine.
  • Page 90 Service Manual 23. Programme unit • I/O cards A11 and A12 Most smaller machines have only one card: A11. On some machines, there is a greater need for outputs, in which case two I/O cards are used. The I/O cards are controlled by the CPU card via a serial interface. The I/O cards feature outputs, which, via the communication cards in the rear electric box, control various machine functions, such as the water valves, heater connection and drain valve.
  • Page 91 Service Manual 23. Programme unit Function CPU card A1 The CPU card controls all functions of the washing machine using various Fig. control programmes in the CPU card memory. The CPU card communicates with the I/O card, display card and motor controller using a serial interface.
  • Page 92 Service Manual 23. Programme unit The two pins in switch X7 are shorted to confirm changes made in Configuration 1 and 2. (Not for FOM71 CLS). Pushbutton SW1: used as an P1, P2 Used for factory acknowledgement button when in the calibration of the Service programme mode (the same pressure sensor.
  • Page 93 Service Manual 23. Programme unit Display card A2 Fig. The display card communicates with the CPU card through a serial interface. The CPU card informs what should be displayed in the display window and the display card converts these messages to information that controls the alphanumeric display window.
  • Page 94 Service Manual 23. Programme unit I/O cards Fig. The I/O cards are controlled by the CPU card and communicate via a serial interface. Depending on the need for inputs and outputs, one programme unit may have one or two I/O cards. All inputs and outputs are switched from the I/O card to the various functions via the communication cards in the rear electric module.

  • Page 95: Input And Outputs On I/O Cards 1 And 2

    Service Manual 23. Programme unit Input and outputs on I/O cards 1 and 2 Card switch I/O-card 1 A11 I/O-card 2 A12 Serial interface and voltage supply X1: 1-3 Serial interface to card 2 16 V+ supply to card 2 0 V–...
  • Page 96 Service Manual 23. Programme unit Inputs and outputs on I/O cards 1 and 2 I/O-card D.card A21 I/O-card 1 A11 Connection block No. Switch No. Relay No. Function Outputs X4: 1 Neutral Door lock relay, phase (normally open) Neutral Door lock relay, phase (normally open) X7: 1 Drain 1 (Y1), phase (normally open) Common neutral...
  • Page 97 Service Manual 23. Programme unit Inputs and Outputs on I/O card 1 and 2 I/O-card D.card A22 I/O-card 2 A12 Connection block No. Switch No. Relay No. Function Outputs X4: 1 X77:1 Flashlight, phase X7: 1 Cold, hard water (Y35) N (neutral) X8: 1 Heater relay (K22)
  • Page 98 Service Manual 23. Programme unit I/O-card D.card A21 I/O-card 1 A11 Connection block No. Opto-coupler Relay No. Function Inputs X5: 1 Door lock micro-switch S4/N, Com Door lock micro-switch S4/N, No Door lock position micro-switch S3/N Door lock micro-switch S4/Phase X15:1 X70:4 External start/stop signal, phase...
  • Page 99 Service Manual 23. Programme unit I/O-card D.card A22 I/O-card 2 A12 Connection block No. Opto-coupler Relay No. Function Inputs X5: 1 X15:1 X74:2 Switch heat 1/heat 2, phase Switch heat 1/heat 2, neutral X16:1-2 438 9145-41/03 03.11...

  • Page 100: The Service Program

    Service Manual 23. Programme unit The service program The service programme facilitates troubleshooting on the machine by enabling control of all machine functions. Input signals to the various I/O cards that are active are also indicated. The following functions can be controlled: COLD WATER LOW EXTRACT HOT WATER...

  • Page 101: To Select The "Service Program" Function

    Service Manual 23. Programme unit To select the ”Service Program” function The service program The service program makes fault-finding on the machine easier, as it allows you to control the various machine functions individually: If this menu is not currently displayed: •...
  • Page 102 Service Manual 23. Programme unit To prevent unauthorised or accidental use Unauthorised or accidental use of the service program is prevented by requiring the user to locate PRESS BUTTON ON Press the button on the and press the button on CPU board. CPU BOARD CPU circuit board.

  • Page 103: To Control The Machine Functions

    Service Manual 23. Programme unit To control the machine functions SERVICE PROGRAM LEVEL TEMP 22°C SPEED DRAIN CLOSED 01 COLD WATER 02 HOT WATER 03 COLD HARD WATER 04 TANK 1 WATER 05 TANK 2 WATER 06 TANK 3 WATER To activate the various 01 COLD WATER machine functions:...

  • Page 104: I/O Card Inputs

    Service Manual 23. Programme unit I/O card inputs Press 1. Now you can check the SERVICE PROGRAM LEVEL various input signals from I/O TEMP 22°C SPEED board 1. DRAIN CLOSED EMERGENCY STOP DOOR LOCKED TEMPORARY PAUSE DOOR CLOSED REMOTE START UNBALANCE A black square in front of the SERVICE...

  • Page 105: Settings 1

    Service Manual 23. Programme unit Settings 1 In the Configuration 1 mode, the variables can be changed without requesting a special password from the supplier: ADJUST TIME ALLOWED LEVEL HIGH ADJUST TEMPERATURE ALLOWED MIDDEL TEMPERATURE COOL-DOWN RAPID ADVANCE ALLOWED DEFAULT MOTOR ON TIME SHOW WEIGHT ALLOWED DEFAULT MOTOR OFF TIME WATER REDUCTION NOT ALLOWED...

  • Page 106: To Select The "Settings 1" Function

    Service Manual 23. Programme unit To select the ”SETTINGS 1” function If this menu is not currently RUN A WASH PROGRAM displayed: GO TO THE MENU Press repeatedly. MAKE YOUR CHOICE WITH AND PRESS SELECT WEIGHT, KG 000,0 SELECT Press to highlight ”GO TO THE MENU”.

  • Page 107: Password

    Service Manual 23. Programme unit Password Password protection or not? It is for you to decide whether or not the functions SETTINGS 1 and PROGRAMMING will be To open the function without a password password-protected. Please note that if you do decide to implement password protection for either SETTINGS 1 of them, then access to both these functions will...
  • Page 108 Service Manual 23. Programme unit To change the password SETTINGS 1 PLEASE ENTER YOUR PASSWORD: ENTER NEW PASSWORD: Enter your four-digit password. Once the correct password has been entered, the display will show and SELECT. Press Enter the new four-digit password.

  • Page 109: Variables Under "Settings 1

    Service Manual 23. Programme unit Variables under ”SETTINGS 1” When the top line of a menu SETTINGS 1 is highlighted you have the ADJUST TIME ALLOWED option of scrolling down ADJUST TEMPERATURE ALLOWED through the menu faster by RAPID ADVANCE ALLOWED MANUAL FUNCTIONS ALLOWED PAUSE ALLOWED pressing...
  • Page 110 Service Manual 23. Programme unit Altering ”step time” allowed ADJUST TIME ALLOWED Here you determine if manual adjustment of the ADJUST TEMPERATURE ALLOWED remaining ”step time” (by using to move to RAPID ADVANCE ALLOWED the line for ”STEP TIME” then entering a new time) SHOW WEIGHT ALLOWED will be allowed.
  • Page 111 Service Manual 23. Programme unit Rapid advance allowed ADJUST TIME ALLOWED Here you determine whether it is allowed to use ADJUST TEMPERATURE ALLOWED rapid advance forwards or backwards through the RAPID ADVANCE ALLOWED wash program during program operation. SHOW WEIGHT ALLOWED WATER REDUCTION NOT ALLOWED 991 NORMAL 95°C STD PROGRAM STEP: MAIN WASH...
  • Page 112 Service Manual 23. Programme unit For machines with weight measurement installed only! Water reduction not allowed ADJUST TIME ALLOWED If the weight measurement function is installed, the ADJUST TEMPERATURE ALLOWED water level will be reduced automatically if the RAPID ADVANCE ALLOWED machine does not have a full load.
  • Page 113 Service Manual 23. Programme unit ADJUST TIME ALLOWED ADJUST TEMPERATURE ALLOWED Pause allowed RAPID ADVANCE ALLOWED Here you determine whether it is allowed to use SHOW WEIGHT ALLOWED the pause function during the wash program. This WATER REDUCTION NOT ALLOWED function will not work until the second time the MANUAL FUNCTIONS ALLOWED program is run.
  • Page 114 Service Manual 23. Programme unit Changing wash program allowed ADJUST TIME ALLOWED ADJUST TEMPERATURE ALLOWED Here you determine whether it is allowed to RAPID ADVANCE ALLOWED change to a different wash program during program operation. SHOW WEIGHT ALLOWED WATER REDUCTION NOT ALLOWED MANUAL FUNCTIONS ALLOWED 991 NORMAL 95°C STD PAUSE ALLOWED...
  • Page 115 Service Manual 23. Programme unit Altering extraction speed allowed RAPID ADVANCE ALLOWED SHOW WEIGHT ALLOWED Here you determine whether it is allowed to alter the extraction speed during the current extraction WATER REDUCTION NOT ALLOWED sequence by using to move to the DRUM MANUAL FUNCTIONS ALLOWED SPEED line and entering a new value.
  • Page 116 Service Manual 23. Programme unit MANUAL FUNCTIONS ALLOWED Display actual temperature FREE TEXT ALLOWED Here you determine whether the actual water CHANGE WASH PROGRAM ALLOWED temperature will be displayed during the program. AUTO RESTART ALLOWED ADJUST SPIN SPEED ALLOWED. DISPLAY REMAINING TIME 991 NORMAL 95°C STD DISPLAY ACTUAL TEMPERATURE PROGRAM STEP: MAIN WASH...
  • Page 117 Service Manual 23. Programme unit Machine not heated Here you determine if the machine is to heat the water to the required temperature before the time CHANGE WASH PROGRAM ALLOWED the wash sequence starts, or if the wash time of the AUTO RESTART ALLOWED sequence is to begin directly after water filling.
  • Page 118 Service Manual 23. Programme unit ADJUST SPIN SPEED ALLOWED. DISPLAY REMAINING TIME ° DISPLAY ACTUAL TEMPERATURE Temperature in DISPLAY ACTUAL SPEED Here you determine if all temperatures are to be MACHINE NOT HEATED shown in °C or °F. TEMPERATURE CONTROL OF WATER If you answer Yes (Y): °...
  • Page 119 Service Manual 23. Programme unit DISPLAY ACTUAL TEMPERATURE DISPLAY ACTUAL SPEED No access to standard programs MACHINE NOT HEATED TEMPERATURE CONTROL OF WATER Here you determine whether the user will have TEMPERATURE IN °C access to the machine’s standard programs REPEAT PROGR.
  • Page 120 Service Manual 23. Programme unit MACHINE NOT HEATED TEMPERATURE CONTROL OF WATER TEMPERATURE IN °C Water level after unbalance halt REPEAT PROGR. MODE QUESTION Here you determine the water level to which the LOCKED STANDARD WASH PROGRAMS N machine fills after a halt in extraction due to LEVEL QUICK COOL-DOWN unbalance.
  • Page 121 Service Manual 23. Programme unit Middle temperature cool-down Here you determine the middle temperature for cool- LEVEL QUICK COOL-DOWN down. LEVEL UNBALANCE When creating a new wash program you can, to LEVEL LOW prevent creasing of the load, use the COOL-DOWN LEVEL MEDIUM module to achieve controlled cool-down of the water LEVEL HIGH...
  • Page 122 Service Manual 23. Programme unit LEVEL UNBALANCE LEVEL LOW LEVEL MEDIUM LEVEL HIGH MIDDLE TEMPERATURE COOL-DOWN 70 °C DEFAULT MOTOR ON TIME 0:12 Flush times DEFAULT MOTOR OFF TIME 0:03 Here you determine times relating to flushing clean FLUSH DELAY TIME 0:06 the supply lines of an external system for liquid FLUSH ON TIME...
  • Page 123 Service Manual 23. Programme unit Maximum filling time BUZZER ON BUTTON Here you determine the maximum time to be MAX FILLING TIME 10:00 allowed for filling the machine with water to the MAX HEATING TIME 10:00 level set. SHOW WEIGHT TIMEOUT 0:20 PC5 BLOCKING OF HEATING If the correct level has not been reached within this...
  • Page 124 Service Manual 23. Programme unit Show weight timeout BUZZER ON BUTTON Here you determine the length of time the weight MAX FILLING TIME 10:00 will be displayed, before the normal display is MAX HEATING TIME 10:00 restored. SHOW WEIGHT TIMEOUT 0:20 PC5 BLOCKING OF HEATING CLARUS CONTROL...
  • Page 125 Service Manual 23. Programme unit BUZZER ON BUTTON MAX FILLING TIME 10:00 MAX HEATING TIME 10:00 SHOW WEIGHT TIMEOUT 0:20 Relay for steam as standard PC5 BLOCKING OF HEATING Here you decide if the machine should heat with PC5 BLOCKING OF SPINNING steam or el.
  • Page 126 Service Manual 23. Programme unit Buzzer length at programme end Here you determine for how long the buzzer should sound at the end of the programme unless BUZZER TIMEOUT AT END 0:20 it is not turned off manually. When programming the main data for a washing programme, it is possible to select whether or not to sound the buzzer at the programme end.
  • Page 127 Service Manual 23. Programme unit Password active Here you determine whether or not to set a PASSWORD ACTIVE password according to the explanations. CMIS address Here you can give the machine a unique address CMIS ADDRESS when connected to the CMIS system. 0 = inactive Allowed values = 1-127.
  • Page 128 Service Manual 23. Programme unit Start slow filling, hg When filling on weight, detergent valve 3 will be START SLOW FILLING, HG used to finalize the washer filling. Detergent valve 3 will be opened given value before the final level is reached.
  • Page 129 Service Manual 23. Programme unit To conclude making changes in variables To prevent inadvertent changes in variables under ”SETTINGS 1” If you have changed any variables under “Settings 1”, when you have finished keying in the changes, you need to insert a strap between two terminals on the CPU circuit board to register the changes in the SETTINGS 1 CPU.

  • Page 130: Settings 2

    Service Manual 23. Programme unit Settings 2 In Configuration 2, there are variables that, in case of carelessness or lack of knowledge, may affect the safety systems or operating safety of the machine. Because of this, these variables are protected by a code system.

  • Page 131: To Select The "Settings 2" Function

    Service Manual 23. Programme unit To select the ”SETTINGS 2” function If this menu is not currently RUN A WASH PROGRAM displayed: GO TO THE MENU Press repeatedly. MAKE YOUR COICHE WITH AND PRESS SELECT WEIGHT, KG 000,0 SELECT Press to highlight ”GO TO THE MENU”.

  • Page 132: Variables In Settings 2

    Service Manual 23. Programme unit Variables in Settings 2 SETTINGS 2 When the top line of a menu HEATING RELAY ON WHEN NOT HEATED TEMPERATURE INCREASE ALLOWED is highlighted you have the LEVEL EMPTY LEVEL OVERFILL option of scrolling down PAUSE TEST LEVEL PAUSE TEST TEMPERATURE -18°C...
  • Page 133 Service Manual 23. Programme unit Heating relay on HEATING RELAY ON IF NOT HEATED Here you determine whether the heating relay will TEMPERATURE INCREASE ALLOWED switch on when heating begins. LEVEL EMPTY Note that the heating relay switches on even if the LEVEL OVERFILL answer ”Yes”...
  • Page 134 Service Manual 23. Programme unit Level empty HEATING RELAY ON IF NOT HEATED Here you determine the water level at which the TEMPERATURE INCREASE ALLOWED drum will be regarded as empty. LEVEL EMPTY It is advisable to set this level so that the inner LEVEL OVERFILL drum will have emptied, but so that some water PAUSE TEST LEVEL...
  • Page 135 Service Manual 23. Programme unit Test values for pause HEATING RELAY ON IF NOT HEATED Here you determine whether, and if relevant, the TEMPERATURE INCREASE ALLOWED conditions under which it will be allowed for the LEVEL EMPTY user to open the door during a wash program, for LEVEL OVERFILL example to take samples of the water.
  • Page 136 Service Manual 23. Programme unit HEATING RELAY ON IF NOT HEATED Temperature step in cool-down TEMPERATURE INCREASE ALLOWED Here you determine the maximum reduction in LEVEL EMPTY temperature per minute during the first stage of LEVEL OVERFILL cool-down. PAUSE TEST LEVEL How does cool-down work? -18 °C PAUSE TEST TEMPERATURE...
  • Page 137 Service Manual 23. Programme unit PAUSE TEST LEVEL -18 °C PAUSE TEST TEMPERATURE 4 °C DEFAULT TEMPERATURE HYSTERIS 4 °C TEMPERATURE STEP IN COOL-DOWN DEFAULT LOW EXTRACT TIME 00:00 Default values for re-start after unbalance DEFAULT MEDIUM EXTRACT TIME 00:00 DEFAULT HIGH EXTRACT TIME 00:00 Here you determine the drain time and distribution...
  • Page 138 Service Manual 23. Programme unit Drain open delay Here you determine whether you want a delay before the drain valve opens, for example if you want the drum to have time to gather speed first, before the valve opens. The drain module may be structured according to point 1 (here) 4 °C only, according to point 2 only, or a combination...
  • Page 139 Service Manual 23. Programme unit Rollout time Here you determine whether you want a time delay after each extraction before the machine starts to fill with water, to give the motor time to slow down. This function is useful if the motor is not a frequency-controlled one.
  • Page 140 Service Manual 23. Programme unit DEFAULT HIGH EXTRACT TIME 00:20 DEFAULT DRAIN TIME 00:40 DEFAULT DISTR. TIME 00:30 DO UNBALANCE MEASUREMENT DRAIN OPEN DELAY 0:13 START EXTRACT TIME 00:30 Pay per wash ROLLOUT TIME 00:01 This question is for special installations with pay PAY PER WASH ALARM systems.
  • Page 141 Service Manual 23. Programme unit DO UNBALANCE MEASUREMENT Lock test delay DRAIN OPEN DELAY 0:13 Here you determine the length of time between START EXTRACT TIME 00:30 when the door is locked and when the check ROLLOUT TIME 00:01 should be made of the lock’s microswitch. PAY PER WASH ALARM When the machine commands that the door be LOCK TEST DELAY...
  • Page 142 Service Manual 23. Programme unit Time drain to open after over-filling DRAIN OPEN DELAY 0:13 Here you determine how long the drain valve should open for if the machine has over-filled, START EXTRACT TIME 00:30 provided you ensure that the parameter (response) ROLLOUT TIME 00:01 stored for the function ERROR OVER-FILLED is N...
  • Page 143 Service Manual 23. Programme unit PAY PER WASH ALARM LOCK TEST DELAY 0:10 DRAIN TIME WHEN OVERFILL 0:05 OIL LUBRICATION HOURS Oil lubrication PULSE TIME OIL LUBR. SEC 0:01 AMOUNT OF I/O MODULES (1-3) Here you determine the lubrication interval and DELAY CLEAR DOOR TEXT 04:00 pulse time for the oil lubrication systems used on...
  • Page 144 Service Manual 23. Programme unit DRAIN TIME WHEN OVERFILL 0:05 Delay clear door text OIL LUBRICATION HOURS Here you determine how long the text ”WAITING PULSE TIME OIL LUBR. SEC 0:01 FOR DOOR TO UNLOCK” will remain visible if, for AMOUNT OF I/O MODULES (1-3) some reason, the door is not unlocked at the right DELAY CLEAR DOOR TEXT...
  • Page 145 Service Manual 23. Programme unit Timeout during pause OIL LUBRICATION HOURS Here you determine the maximum time for a pause PULSE TIME OIL LUBR. SEC 0:01 in the program, if it is to be available for use in AMOUNT OF I/O MODULES (1-3) calculating the average length of the program.
  • Page 146 Service Manual 23. Programme unit Door open delay for ”motor lost” AMOUNT OF I/O MODULES (1-3) DELAY CLEAR DOOR TEXT 04:00 Here you determine the length of time during which MAX DRAIN TIME 4:00 the door will be prevented from opening if, (in TIMEOUT DURING PAUSE 1:00 machines with frequency control) the MCU loses...
  • Page 147 Service Manual 23. Programme unit List of errors, functions monitored and relevant error messages displayed Error/Function Error message displayed 01 ERROR. NO WATER Water level has not reached set level within time set. NO WATER After this error message appears and the machine is reset, the machine will try again.
  • Page 148 Service Manual 23. Programme unit List of errors, functions monitored and relevant error messages displayed, cont. Error/Function Error message displayed 15 ERROR. EMERGENCY STOP The emergency stop button has been pressed. EMERGENCY STOP 16 ERROR. WEIGHT FROM SCALE Over-/Under-load of scale or weight above limit for maximum allowed WEIGHT FROM SCALE weight at wash module start.
  • Page 149 Service Manual 23. Programme unit List of errors, functions monitored and relevant error messages displayed, cont. Error/Function Error message displayed ERROR. ERROR CODES FROM MOTOR This function includes a number of error warnings from the motor control system for frequency-controlled motors (EWD) 31 Temperature of MCU control circuits too high HEAT SINK TOO HOT 32 Motor thermal protection has tripped...
  • Page 150 Service Manual 23. Programme unit ERROR, EWD INTERLOCK ERROR, I/O COMMUNICATION ERROR, LOW OIL LEVEL ERROR, LOW OR HIGH VOLTAGE ERROR, ERROR CODES FROM MOTOR ERROR, PRESS SENSOR TILT Time delay before door opening ERROR, PRESSURE SENSOR TIMEOUT Here you determine the length of time during which ERROR, DOOR SWITCH TILT the door will be prevented from opening if the ERROR, LEVEL OFFSET...
  • Page 151 Service Manual 23. Programme unit Upper limit for manual temperature adjustment (”Max adjust temperature”) ERROR, I/O COMMUNICATION ERROR, LOW OIL LEVEL Here you determine the highest temperature the ERROR, LOW OR HIGH VOLTAGE user may alter the wash temperature to manually ERROR, ERROR CODES FROM MOTOR (by using to move to the line for ”SET...
  • Page 152 Service Manual 23. Programme unit ERROR, PRESS SENSOR TILT ERROR, PRESSURE SENSOR TIMEOUT ERROR, DOOR SWITCH TILT ERROR, LEVEL OFFSET ERROR, LEVEL SYSTEM NOT CALIB. TIME DELAY BEFORE DOOR OPENING 0:30 UPPER TEMPERATURE FOR ERROR 98°C LOWER TEMPERATURE FOR ERROR -9°C Default wash speed MAX ADJUST TEMPERATURE...
  • Page 153 Service Manual 23. Programme unit TIME DELAY BEFORE DOOR OPENING 0:30 Default value, extraction time UPPER TEMPERATURE FOR ERROR 98°C LOWER TEMPERATURE FOR ERROR -9°C Here you determine the various speeds (low, MAX ADJUST TEMPERATURE 97°C medium and high) for extraction. The instructions MAXIMUM EXTRACT SPEED 1200 for determining the length of extraction times are to...
  • Page 154 Service Manual 23. Programme unit START EXTRACT SPEED 1000 Default wash acceleration DEFAULT WASH ACCELERATION Here you determine the acceleration rate (rpm/ DISTRIBUTION ACCELERATION second) which the machine can use to reach wash RETARDATION ACCELERATION speed when it cannot find this value elsewhere, e.g. EXTRACT ACCELERATION in the event of manual operation of the drain START EXTRACT ACCELERATION...
  • Page 155 Service Manual 23. Programme unit START EXTRACT SPEED 1000 DEFAULT WASH ACCELERATION Extraction acceleration DISTRIBUTION ACCELERATION Here you determine the acceleration rate (rpm/ RETARDATION ACCELERATION second) the machine will use to reach extraction EXTRACT ACCELERATION speed. This value is not programmable when you START EXTRACT ACCELERATION create a wash program.
  • Page 156 Service Manual 23. Programme unit START EXTRACT SPEED 1000 DEFAULT WASH ACCELERATION DISTRIBUTION ACCELERATION Extract retardation (i.e. Deceleration rate RETARDATION ACCELERATION after extraction) EXTRACT ACCELERATION START EXTRACT ACCELERATION Here you determine the deceleration rate (rpm/ EXTRACT RETARDATION second) at which the drum will slow down after MAX SPEED DURING FILLING extraction speed.
  • Page 157 Service Manual 23. Programme unit START EXTRACT SPEED 1000 DEFAULT WASH ACCELERATION DISTRIBUTION ACCELERATION RETERDATION ACCELERATION EXTRACT ACCELERATION START EXTRACT ACCELERATION EXTRACT RETARDATION Max level offs. for aut. calib. MAX SPEED DURING FILLING MAX LEVEL OFFS. FOR AUT. CALIB. Maximum level in SKD for automatic calibration. TIME AT DISTRIBUTION SPEED 2 NUMBER OF REDIST LOW 1 UNB.
  • Page 158 Service Manual 23. Programme unit NUMBER OF REDIST LOW 1 UNB. NUMBER OF REDIST LOW 2 UNB. NUMBER OF REDIST MEDIUM UNB. NUMBER OF REDIST HIGH UNB. NUMBER OF REDIST EXTREME UNB. Drain time at progr. end DRAIN TIME AT PROGR. START Drain time at program end after that the level is DRAIN TIME AT PROGR.
  • Page 159 Service Manual 23. Programme unit To conclude making changes in variables To prevent inadvertent changes in variables under ”SETTINGS 2” If you have changed any variables under “Settings 2”, when you have finished keying in the changes, you need to insert a strap between two terminals on the CPU circuit board to register the changes in the SETTINGS 2 CPU.
  • Page 160 Service Manual 23. Programme unit To replace the CPU board If the CPU board is faulty and has to be replaced, the correct software for the particular washer extractor will have to be downloaded onto the new CPU board. For this you need: 1.
  • Page 161 Service Manual 23. Programme unit Fig. 6. Switch off the machine’s main power switch. Install the new CPU board and connect all the PCB connectors. Connect the correct cable between the computer (COM1 port) and the interface connector X7 on the CPU board. Switch the machine’s main power switch back 7.
  • Page 162 Service Manual 23. Programme unit 8. When downloading is finished, the PC screen will tell you that the software is OK. 9. Switch off the machine’s main power switch. Remove the cable linking PC and CPU board. Switch the machine’s main power switch back on.
  • Page 163 Service Manual 23. Programme unit To replace an I/O board The procedure described here is for machines with more than one I/O board. On 5 4 3 machines with only one I/O board, that board can be replaced without any need for this procedure.
  • Page 164 Service Manual 23. Programme unit 5. Start “CMM G3000”. 6. A menu where various service interventions can be made is displayed. Pushbutton for programming 7. Click "Service". 8. "Service menu" is shown. 9. Click I/O-board address. 10. Click I/O-board to be configured. Press the button on I/O board 1.
  • Page 165 Service Manual 23. Programme unit Imbalance detection Imbalance can be split into three different types: extreme imbalance measurement, mechanical imbalance interruption and super imbalance measurement. Extreme imbalance measurement In a drain sequence, when the drum starts its acceleration from washing rpm to extraction rpm, the extreme imbalance measurement starts when 90% of the distribution rpm has been achieved.
  • Page 166 Service Manual 23. Programme unit Super imbalance measurement Super imbalance measurement is the normal imbalance measurement. Its task is to ensure that the machine is not overloaded during extraction, as well as to ensure that the number of missed extractions is as small as possible.
  • Page 167 Service Manual 23. Programme unit It should be noted that even if imbalances have occurred continually that are so large that the comparison is made with limit value 4, and the imbalance suddenly drops below limit value 1, full extraction speed will be executed.
  • Page 169 29. Door and door lock Contents Description, W365H, W375H up to machine No. –520/19486 and 520/19549-22806 W3105H up to machine No. –595/9040 W3130H up to machine No. –650/14354 W3180H up to machine No. –725/7908 W3240H up to machine No. –795/3769 ............ 3 General ....................

  • Page 171: Description

    Service Manual 29. Door and door lock Description Emergency opening arm W365H, W375H Micro switch S3 Up to machine No. –520/19486 Actuator (with 520/19549-22806 micro switch S4a W3105H Up to machine No. –595/9040 and S4b) W3130H Up to machine No. –650/14354 W3180H Up to machine No.

  • Page 172: Function

    Service Manual 29. Door and door lock Function The door lock locks the door When the door is closed (closed door lock Fig. switch S3), the programme unit may request Programme unit door locking by applying a voltage of 200- 240 V on door lock controller A31 input X92.

  • Page 173: The Door Lock Unlocks The Door

    Service Manual 29. Door and door lock The door lock unlocks the door The programme unit requests door unlocking by Fig. applying 0 V on input X92 of the door lock controller. The following check is made prior to unlocking of Programme the door: unit A1...

  • Page 174: Error Codes

    Service Manual 29. Door and door lock Error codes The door lock control has three LEDs that show Fig. whether the door lock operates normally or Reset button whether an error has been detected. During normal operation, the LEDs blink when the drum is not turning and are off when the drum rotates.

  • Page 175: Reset Button

    Service Manual 29. Door and door lock Reset button The door lock control features a reset button Fig. used to reset the programme routines stored in Door lock control A31 the computer. When pressed, any error codes 200- are erased; 240 V Voltage Door lock control inputs/outputs...
  • Page 176 Service Manual 29. Door and door lock Fig. X93: Input from level guard If the input indicates “Water in drum” when the Fig. door is not locked, the door cannot be locked. The LEDs then show the error code ● ● ❍. Door lock control A3 200- 240 V...
  • Page 177 Service Manual 29. Door and door lock Fig. X95: Input from rotation sensor on motor shaft Fig. When the motor is operating, a pulse train is applied on the input. Door lock control A31 Rotation sensor Input Function Pin 1: DC 4-10 V feed Pin 2: Pin 3:...

  • Page 178: Repairs

    Service Manual 29. Door and door lock Repairs Repair work on the machine should only be done by specially trained personnel. Emergency opening of door lock Fig. 1. Switch off power to the machine by turning the main power switch to the 0 position. 2.

  • Page 179: Replacing The Door Lock

    Service Manual 29. Door and door lock Replacing the door lock 1. Switch off power to the machine by turning the main power switch to the 0 position. 2. Remove the front cover alt. side pole. 3. Remove the door (two screws in each hinge). 4.

  • Page 180: Description

    Service Manual 29. Door and door lock Description Emergency opening arm W365H, W375H Micro switch S3 from machine No. 520/22807– Actuator (with 520/19487-19548 micro switch S4a W3105H from machine No. 595/9041– and S4b) W3130H from machine No. 650/14355– W3180H from machine No. 725/7909–...

  • Page 181: Function

    Service Manual 29. Door and door lock Function The door lock locks the door When the door is closed (closed door lock Fig. switch S3), the programme unit may request Door lock door locking by applying a voltage of 200- Programme control 240 V on door lock controller A31 input X92.

  • Page 182: The Door Lock Unlocks The Door

    Service Manual 29. Door and door lock The door lock unlocks the door The programme unit requests door unlocking by Fig. applying 0 V on input X92 of the door lock controller. The following check is made prior to unlocking of Door lock Programme the door:...

  • Page 183: Error Codes

    Service Manual 29. Door and door lock Error codes The door lock control has three LEDs that show Fig. whether the door lock operates normally or Reset button whether an error has been detected. During normal operation, the LEDs blink when the drum is not turning and are off when the drum rotates.
  • Page 184 Service Manual 29. Door and door lock Reset button The door lock control features a reset button used to reset the programme routines stored in Door lock control A31 the computer. When pressed, any error codes 200- are erased; 240 V Door lock control inputs/outputs Voltage supply to A1...
  • Page 185 Service Manual 29. Door and door lock Fig. X93: Input from level guard If the input indicates “Water in drum” when the Fig. door is not locked, the door cannot be locked. The LEDs then show the error code ● ● ❍. Door lock control A31 200- 240 V...
  • Page 186 Service Manual 29. Door and door lock Fig. X95: Input from rotation sensor on motor shaft Fig. When the motor is operating, a pulse train is applied on the input. Door lock control A31 Tacho generator Input Function Pin 1: Pin 2: Tacho signal X96: Output to door lock...

  • Page 187: Repairs

    Service Manual 29. Door and door lock Repairs Repair work on the machine should only be done by specially trained personnel. Emergency opening of door lock Fig. 1. Switch off power to the machine by turning the main power switch to the 0 position. 2.

  • Page 188: Replacing The Door Lock

    Service Manual 29. Door and door lock Replacing the door lock 1. Switch off power to the machine by turning the main power switch to the 0 position. 2. Remove the front cover alt. side pole. 3. Remove the door (two screws in each hinge). 4.
  • Page 189 30. Motor and motor control Contents Warnings....................3. Description,. W365H,.W375H.up.to.machine.No..–520/19486.and.520/19549-22806. W3105H.up.to.machine.No..–595/9040. W3130H.up.to.machine.No..–650/14354. W3180H.up.to.machine.No..–725/7908. W3240H.up.to.machine.No..–795/3769............. 4. . Motor..................... 4. . Motor.control..................5. . Function....................6. . Inputs.and.outputs................7. . LED.indications................... 10. . Repairs....................11. . Motor.replacement................11.

  • Page 191: Warnings

    Service Manual 30. Motor and motor control Warnings DANGER Be careful when measuring the electric components in the motor control. All components have a potential difference of approx. 300 V in relation to protective earth and neutral. When the green LED on the motor control card is lit, the components carry dangerous vol- tages.

  • Page 192: Description

    Service Manual 30. Motor and motor control Description W365H,.W375H. . Up.to.machine.No.. –520/19486. and. 520/19549-22806. W3105H.Up.to.machine.No.. –595/9040. W3130H.Up.to.machine.No.. –650/14354. W3180H.Up.to.machine.No.. –725/7908. W3240H.Up.to.machine.No.. –795/3769 Motor The.motor.is.fitted.in.a.bridge.carrier.under.the. Fig. outer.drum..It.drives.the.washing.drum.using.a. drive.belt. The.motor.is.frequency-controlled.and.is.con- trolled.by.microcomputer.control..The.vari- ous.speeds.for.normal.operation,.distribution. speeds.and.extraction.as.well.as.acceleration/ retardation.can.be.controlled.with.a.high.degree. of.precision. The.motor.winding.is.protected.against.overlo- ads.using.a.thermal.overheating.protector.that. Motor is.automatically.reset. The.motor.is.connected.directly.to.the.motor. Fig. control.via.a.cable.with.quick.connectors.

  • Page 193: Motor.control

    Service Manual 30. Motor and motor control Motor control The.motor.control.unit.is.microcomputer.con- Fig. Motor.control.U1 trolled.and.is.situated.under.the.top.cover.of. the.machine,.right.above.the.outer.drum. The.unit.consists.of.a.PCB.(mother.board).fitted. on.a.heat.sink.that.does.double-duty.as.part.of. the.housing..In.the.cover.there.is.a.choke.coil. together.with.the.cable.harness.and.contact. The.cable.harness.is.directly.connected.to. Fig. the.PCB,.voltage.supply.input.and.the.voltage. supply.to.the.motor.using.connectors;.the.other. cables.are.connected.with.flat.connectors.to. the.PCB. A.detailed.description.of.input.and.output.ca- bles.is.presented.in.the.section.“Function”. Issue Month Year Depending.on.the.machine.size,.this.unit.comes. 101766 in.four.different.versions..The.units.have.diffe- rent.sizes.in.order.to.be.able.to.control.motors. of.different.sizes. 101766..5207 438 9145-81/07 06.42...

  • Page 194: Function

    Service Manual 30. Motor and motor control Function DANGER Be careful when measuring the electric components in the motor control. All components have a potential difference of approx. 300 V in relation to protective earth and neutral. When the green LED on the motor control card is lit, the compo- nents carry dangerous voltages.
  • Page 195 Service Manual 30. Motor and motor control The.motor.control.is.also.able.to.deliver.various. instantaneous.and.output.values.during.con- stant.speed,.acceleration.and.retardation..These. values.are.used.to.calculate.the.weight.of.the. X301 X302 loaded.laundry.and.to.detect.any.load.imbalan- ces..A.separate.imbalance.breaker.can.also.be. connected.to.the.motor.control. The.safety.system.of.the.machine.includes. double.detection.of.the.door.lock..Both.the. programme.unit.and.motor.control.use.different. switches.to.detect.proper.door.locking..The.mo- tor.cannot.start.unless.both.switches.verify.the. door.is.locked. Inputs and outputs X301: Serial communication Fig. Handles.communication.between.the.motor. control.and.the.programme.unit..Using.a.spe- cial.interface,.it.is.possible.to.connect.a.PC.for. testing.the.motor.control. Card.No.. Function X.301:2. Gnd... X.301:3. Txd. X.301:4. Rxd.
  • Page 196 Service Manual 30. Motor and motor control X304: Door lock connector Fig. X308 The.collector.output.function.is.controlled.from. X304 the.programme.unit.(X301)..The.collector.output. does.not.switch.on.if.there.is.no.communication. with.the.programme.unit. Card.No.. . Connection. X304:1. Common X304:2. Not.used X304:3. Collector.for.output Voltage,.max. 15.VDC Current,.max:. 10.mA X308: Imbalance switch X311 Input.from.the.imbalance.switch.(only.fitted.on. some.machines)..The.imbalance.switch.is.nor- mal.open. Input.voltage. min:. 120.V-20.%..
  • Page 197 Service Manual 30. Motor and motor control X312: AC supply to motor and input from the Fig. motor thermal protector The.motor.is.fed.with.alternating.current.with.va- rying.frequency.that.is.proportional.to.the.motor. speed. This.connector.also.includes.the.input.from.the. thermal.protector.of.the.motor.. The.thermal.protector.switch.is.usually.closed. and.triggers.only.in.case.of.overheating. W365-W3130H,.Wascator.FOM71.CLS. Card.No.. Function X.312:1. AC.supply.to.motor. X.312:2. AC.supply.to.motor. X.312:3. AC.supply.to.motor. X.312:4. To.thermal.protector.B41. X.312:5. To.thermal.protector.B41 W3180-W3240H.

  • Page 198: Led.indications

    Service Manual 30. Motor and motor control LED indications Fig. Two.LEDs,.one.yellow.and.one.green,.indicate. any.errors.on.the.motor.controller.and.motor.. Yellow.LED. Green.LED The.table.below.shows.the.blinking.patterns.of. Fig. the.various.error.codes. 5181 Green.LED LED.blinking.pattern. Cause OK.blink.(brief.pause.every.5.seconds) Microcomputor.in.motor.control.unit.not.working,.voltage.is.on. Current.limiter.of.motor.control.has.switched.on. approx..5.seconds Yellow.LED LED.blinking.pattern. Error.code.on.display. Cause. EXACTA. CLARUS 31E. HEAT.SINK.TOO.HOT. Overheated.heat.sink.on.motor.control. 32E. MOTOR.TOO.HOT. Motor.thermal.protector.has.triggered. 33E. NO.INTERLOCK. Motor.controller.receives.start.request,.. but.receives.no.lock.ACK.(input.302).

  • Page 199: Repairs

    Service Manual 30. Motor and motor control Repairs Main.power.switch. Repair work on the machine should only be done by specially trained personnel. Motor replacement Disassembly 1.. Swith.off.power.to.the.machine.by.turning. Fig. the.main.power.switch.to.the.0.position. 2.. Remove.the.rear.cover. 3.. Undo.the.bracket.for.the.drain.hose.con- 5207 nector.from.the.lower.rear.piece,.then. remove.the.rear.cover. 4.. Undo.the.ground.connection.from.the.mo- Fig. Mounting.bolt. tor.

  • Page 200: Adjustments

    6.. Fit.the.upper.rear.piece. 7.. Connect.the.voltage.supply.and.verify.that.the. motor.operates.normally. Adjustments B,.C Drive belt tension The.drive.belt.is.pre-tensioned.upon.delivery. from.the.factory.. The.drive.belt.tension.should.be.as.follows: Fig. Model. Force.A. Post-tensioning.B. New.belt.C.. (N). .(mm). (mm) W365H,.. Adjust.drive.belt.tension.if.values.exceed. Wascator.. those.shown.in.the.table. FOM71.CLS. 30. W375H. W3105H. W3130H. W3180H. 4741 W3240H. To.adjust.drive.belt.tension,.first.undo.the.motor. Fig. retaining.screw.a.couple.of.turns,.then.press. down.on.the.motor.to.achieve.proper.tensioning.. Lock.the.locking.nut.when.the.tension.is.correct.. Then.lock.the.retaining.screw.

  • Page 201: Description

    Service Manual 30. Motor and motor control Description W365H,.W375H. . from.machine.No..520/22807–. and. 520/19487-19548. W3105H.from.machine.No.. 595/9041–. W3130H.from.machine.No.. 650/14355–. W3180H.from.machine.No.. 725/7909–. W3240H.from.machine.No.. 795/3770–. W3300H Motor The.motor.is.fitted.in.a.bridge.carrier.under.the. Fig. outer.drum..It.drives.the.washing.drum.using.a. drive.belt. The.motor.is.frequency-controlled.and.is.con- trolled.by.microcomputer.control..The.vari- ous.speeds.for.normal.operation,.distribution. speeds.and.extraction.as.well.as.acceleration/ retardation.can.be.controlled.with.a.high.degree. of.precision. Motor The.motor.winding.is.protected.against.overlo- ads.using.a.thermal.overheating.protector.that. is.automatically.reset. The.motor.is.connected.directly.to.the.motor. Fig. control.via.a.cable.with.quick.connectors.

  • Page 202: Motor.control

    Service Manual 30. Motor and motor control Motor control The.motor.control.unit.is.microcomputer.con- Fig. Motor.control.U1 trolled.and.is.situated.under.the.top.cover.of. the.machine,.right.above.the.outer.drum. The.unit.consists.of.a.PCB.(mother.board).fitted. on.a.heat.sink.that.does.double-duty.as.part.of. the.housing. The.cable.harness.is.directly.connected.to. Fig. the.PCB,.voltage.supply.input.and.the.voltage. supply.to.the.motor.using.connectors;.the.other. cables.are.connected.with.flat.connectors.to. the.PCB. A.detailed.description.of.input.and.output.ca- bles.is.presented.in.the.section.“Function”. Depending.on.the.machine.size,.this.unit.comes. Issue Month Year in.four.different.versions..The.units.have.diffe- 101766 rent.sizes.in.order.to.be.able.to.control.motors. of.different.sizes. 101766..5207 438 9145-81/07 06.42...

  • Page 203: Function

    Service Manual 30. Motor and motor control Function DANGER Be careful when measuring the electric components in the motor control. All components have a potential difference of approx. 300 V in relation to protective earth and neutral. When the green LED on the motor control card is lit, the compo- nents carry dangerous voltages.

  • Page 204: Inputs.and.outputs

    Service Manual 30. Motor and motor control The.motor.control.is.also.able.to.deliver.various. instantaneous.and.output.values.during.con- stant.speed,.acceleration.and.retardation..These. values.are.used.to.calculate.the.weight.of.the. loaded.laundry.and.to.detect.any.load.imbalan- ces..A.separate.imbalance.breaker.can.also.be. connected.to.the.motor.control. The.safety.system.of.the.machine.includes. double.detection.of.the.door.lock..Both.the. programme.unit.and.motor.control.use.different. FLASH switches.to.detect.proper.door.locking..The.mo- EPROM tor.cannot.start.unless.both.switches.verify.the. door.is.locked. Inputs and outputs X301: Serial communication Fig. Handles.communication.between.the.motor. control.and.the.programme.unit..Using.a.spe- 5930 cial.interface,.it.is.possible.to.connect.a.PC.for. testing.the.motor.control. Card.No.. Function X.301:2. Gnd... X.301:3. Txd. X.301:4.
  • Page 205 Service Manual 30. Motor and motor control X304: Door lock connector Fig. The.collector.output.function.is.controlled.from. the.programme.unit.(X301)..The.collector.output. X311 does.not.switch.on.if.there.is.no.communication. with.the.programme.unit.. Tacho.signal.from.the.motor.(via.door.lock.con- trol.A31).is.needed.to.control.the.motor. Card.No.. . Connection. X304:1. Common,.0V FLASH EPROM X304:2. Tacho.signal X304:3. Collector.for.output Voltage,.max. 30.VDC Current,.max:. 10.mA X308: Imbalance switch Input.from.the.imbalance.switch.(only.fitted.on. some.machines)..The.imbalance.switch.is.nor- mal.open. 5930 Input.voltage.
  • Page 206 Service Manual 30. Motor and motor control X312: AC supply to motor and input from the Fig. motor thermal protector The.motor.is.fed.with.alternating.current.with.va- rying.frequency.that.is.proportional.to.the.motor. speed. This.connector.also.includes.the.input.from.the. thermal.protector.of.the.motor.. The.thermal.protector.switch.is.usually.closed. FLASH and.triggers.only.in.case.of.overheating. EPROM W365-W3300H,.. Wascator.FOM71.CLS. Card.No.. Function X.312:1. AC.supply.to.motor. X.312:2. AC.supply.to.motor. X.312:3. AC.supply.to.motor X312 5930 438 9145-81/07 06.42...

  • Page 207: Led.indications

    Service Manual 30. Motor and motor control LED indications Two.LEDs,.one.yellow.and.one.green,.indicate.any.errors.on.the.motor. controller.and.motor.. The.table.below.shows.the.blinking.patterns.of.the.various.error.codes. Fig. Green.LED LED.blinking.pattern. Cause OK.blink.(brief.pause.every.5.seconds) Microcomputor.in.motor.control.unit.not.working,.voltage.is.on. Current.limiter.of.motor.control.has.switched.on. approx..5.seconds Yellow.LED LED.blinking.pattern. Error.code.on.display. Cause. EXACTA. CLARUS 31E. HEAT.SINK.TOO.HOT. Overheated.heat.sink.on.motor.control. 32E. MOTOR.TOO.HOT. Motor.thermal.protector.has.triggered. 33E. NO.INTERLOCK. Motor.controller.receives.start.request,.. but.receives.no.lock.ACK.(input.302). 13E. NO.MOTOR.COMM.. Communication.error.motor.control.-... programme.unit. Short-circuit.in.motor.winding,.harness..

  • Page 208: Repairs

    Service Manual 30. Motor and motor control Repairs Main.power.switch. Repair work on the machine should only be done by specially trained personnel. Motor replacement Disassembly 1.. Swith.off.power.to.the.machine.by.turning. Fig. the.main.power.switch.to.the.0.position. 2.. Remove.the.rear.cover. 3.. Undo.the.bracket.for.the.drain.hose.con- 5207 nector.from.the.lower.rear.piece,.then. remove.the.rear.cover. 4.. Undo.the.ground.connection.from.the.mo- Fig. Mounting.bolt. tor.

  • Page 209: Adjustments

    6.. Fit.the.upper.rear.piece. 7.. Connect.the.voltage.supply.and.verify.that.the. motor.operates.normally. Adjustments B,.C Drive belt tension The.drive.belt.is.pre-tensioned.upon.delivery. from.the.factory.. The.drive.belt.tension.should.be.as.follows: Fig. Model. Force.A. Post-tensioning.B. New.belt.C.. (N). .(mm). (mm) W365H,.. Adjust.drive.belt.tension.if.values.exceed. Wascator.. those.shown.in.the.table. FOM71.CLS. 30. W375H. W3105H. W3130H. W3180H. 4741 W3240H. W3300H. Fig. To.adjust.drive.belt.tension,.first.undo.the.motor. retaining.screw.a.couple.of.turns,.then.press. down.on.the.motor.to.achieve.proper.tensioning.. Lock.the.locking.nut.when.the.tension.is.correct..

  • Page 211: Drain Valve

    38. Drain valve Contents Description ....................3 Function ....................3 Repairs...................... 4 Disassembly ..................4 Assembling ................... 5 438 9146-01/01 00.45...

  • Page 213: Description

    Service Manual 38. Drain valve Description Fig. The drain valve is situated on a flange at the bottom of the outer drum and can be accessed from the front after removing the front cover. The drain valve consists of the following principal parts: •...

  • Page 214: Repairs

    Service Manual 38. Drain valve Repairs Main power switch Repair work on the machine should only be done by specially trained personnel. Disassembly For repair works on the drain valve, there is a risk that water still left in the machine may flood onto the floor.

  • Page 215: Assembling

    Service Manual 38. Drain valve Assembling 1. Connect the pressure hose to the lower part of the valve. Verify that the Fig. hose is not bent or pinched. 2. Fit the rubber bellows onto the sleeve coupling. 3. Hook the valve onto the bolts and turn the valve into position. Secure the Fig.

  • Page 217: Detergent Compartment

    39. Detergent compartment Contents Description ....................3 438 9146-21/01 00.45...
  • Page 219 Service Manual 39. Detergent compartment Description Fig. The detergent compartment of the machine is Detergent compartment designed for use with powder and liquid detergent. The compartment is divided into four sub-compartments as follows: Fig. • Compartment 1 - For pre wash with powder or liquid detergent.
  • Page 221 40. Heating Contents Description ....................3 Electric heating ..................3 Function ....................4 Electric heating ..................4 Steam heating ..................4 Repairs...................... 5 Replacing the heating elements ............5 438 9146-41/03 03.20...

  • Page 223: Description

    Service Manual 40. Heating Description Heating contactor Electric heating The heating system of the machine consists of: Fig. • Three heating elements for heating the water in the drum. • A temperature sensor to detect the water temperature in the drum. 5365 •...

  • Page 224: Function

    Service Manual 40. Heating Function Electric heating The three heating elements in the machine are Fig. Heating Programme connected to separate phases and are switched element unit Al on and off using one or two heating contactors, K.21 and K22 (two contactors are used for higher I/O card 1 A11 heating power).

  • Page 225: Repairs

    Service Manual 40. Heating Repairs Main power switch Repair work on the machine should only be done by specially trained personnel. Replacing the heating elements When replacing the heating elements, there is a risk that water still left in the machine may flood onto the floor.
  • Page 227 43. Frame Contents Description ....................3 438 9146-61/01 00.45...
  • Page 229 Service Manual 43. Frame Description The machine has a freely suspended drum assembly. The inner frame is Fig. suspended in an outer frame. The motor and drum assembly are fitted on the inner frame. The inner frame is suspended in the outer frame by way of four coil springs. It has the shape of a cradle in which the outer drum is placed.
  • Page 231 50. Weighing equipment Contents Water level reduction ................3 Actual weight display ................3 Resetting the weighing equipment ............3 Calibrating the weighing equipment ............4 Checking accuracy of weighing equipment display ........4 If the weighing equipment has a fault ............4 Fault-finding, weighing equipment ............

  • Page 233: Water Level Reduction

    Service Manual 50. Weighing equipment Water level reduction To achieve optimum load volumes, the weight of Normal mode the load can be seen on the display while the machine is being loaded. If the machine does not have a full load, the water level will be reduced according to a water-level reduction table.

  • Page 234: Calibrating The Weighing Equipment

    Service Manual 50. Weighing equipment Calibrating the weighing equipment The “Zero calibration” function is used to increase the accuracy of the weighing equipment. This should be done once a month. See the section headed “Zero calibration” under “Machine operation”. If a new scale unit is installed, it must be calibrated as described in the section ”Calibrate the scale”...

  • Page 235: Fault-Finding, Weighing Equipment

    Service Manual 50. Weighing equipment Fault-finding, weighing equipment Weight-totalling board Error message on display: Weight, kg: 999,9 or -999,9 Probable cause: The weighing equipment is overloaded/ ”underloaded”, i.e. the load cells are sending a signal which is too high/low to the scale unit. Probable cause is one or more load cells faulty.
  • Page 236 Service Manual 50. Weighing equipment • If more than one load cell is faulty, the faulty cells can be identified using a multimeter on the scale unit weight-totalling board to check each cell in turn, as follows: - Remove the four screws on the scale unit cover. - Check that the four load cell cables are connected to the scale unit.
  • Page 237 Service Manual 50. Weighing equipment Menu line which should show actual weight not displayed. Possible causes: The option “DISPLAY WEIGHT ALLOWED” may be switched off (have the answer “No” alongside) in “Settings 1”. Possible fault in communication with CPU board or display. The fault can also be in the scale unit. Fault-finding procedure: •...
  • Page 238 Service Manual 50. Weighing equipment Error message on display: Failed. Press SELECT. Possible causes: Calibration switch incorrectly set. An incorrect calibration weight has been used for calibration. Fault-finding procedure: • If you are or have recently been calibrating the weighing equipment, the Fig.
  • Page 239 Service Manual 50. Weighing equipment Information in display: Function not allowed. Probable cause: A function has been selected in the program which cannot be carried out. Fault-finding procedure: • Check that the function in question is switched on under “Settings”. •...
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