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Asko DW70.1 Service Manual

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SERVICE MANUAL
DISHWASHERS
DW70.1,DW70.3,
DW70.4, DW70.5

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Summary of Contents for Asko DW70.1

  • Page 1 SERVICE MANUAL DISHWASHERS DW70.1,DW70.3, DW70.4, DW70.5...

  • Page 3: Table Of Contents

    Contents 1. Introduction ........................4 1.1 Models ........................5 2. Technical data ......................6 2.1 Technical information ..................6 3. Installation ........................7 4. Component information ....................9 4.1 Components and measurement values ............9 4.2 Components and function description ............11 5. Programs and control unit ..................14 5.1 Programs ......................14 5.2 Time display .....................15 5.3 Programs and options ..................15...

  • Page 4: Introduction

    You are holding ASKO’s service manual for the DW70 generation of dishwashers. The DW70 dishwasher series is available in four different basic models, designated DW70.1, DW70., DW70. and DW70.5. On the next page, we present the various panels found on each type, making it easy to identify the different machines.

  • Page 5: Models

    INTRODUCTION 1.1 Models DW70.1 The DW70.1 is available in two versions, with either one or two options. The machine has four set pro- grams DW70.3 The DW70. is available in two versions – with three and five options respectively. The machine has six set programs and the controls are on the top..

  • Page 6: Technical Data

    TeChNICAl DATA 2. Technical data 2.1 Technical information Height: 8-870 mm = for 80 mm machines (XL) 8-910 mm = for 80 mm machines (XXL) Width: 59 mm Depth: 570 mm Weight:  kg / 5 kg with water softener Water pressure: 0.0–0. MPa (0.–.0 kp/cm Connection:...

  • Page 7: Installation

    INSTAllATION 3. Installation Suggested machine installations The dishwasher can be installed built-in, completely freestanding or partially free- standing. CAUTION! Connections to electricity, water and drain- age must be performed by qualified profes- sionals. A. Built-in The dishwasher can be installed under a worktop and integrated with the kitchen cupboards.
  • Page 8 INSTAllATION Connection to water supply • No part of the drainage hose may be more The supply pipe must be fitted with a stop- than 950 mm above floor level. cock. The stopcock should be positioned The hose must not be routed directly to the above the sink unit or at the front of the sink floor drain or similar.

  • Page 9: Components And Measurement Values

    COMPONeNT DeSCRIPTION 4.Component description 4.1 Components and measurement values The specified resistance values apply at room temperature (about 0°C/8°F) Values within ±10% are considered normal. Article no. Position Component 807779 EMC filter 80 kohm 807780,81 EMC filter 1 Mohm 807950 Heating element 100 W  ohm 0 V...

  • Page 10: Components And Function Description

    COMPONeNT INFORMATION Article no. Position Component Softener salt water 8078090*  kohm valve 0/0 V Softener mixer valve . kohm 8078090 * 0/0 V Softener salt water 80780* 0.5 kohm valve 10 V 80780* Softener mixer valve 0.5 kohm 10 V 80780 Halogen bulb 5 W/1 V <10 kohm...
  • Page 11 COMPONeNTINFORMATION wheel. The hot and damp air from the clean- amounts of water from the circulation pump ing compartment is drawn through the other to the lower and upper spray arms at different side of the fan wheel, when a Vax motor pressures.
  • Page 12 COMPONeNT INFORMATION Door switch ing through the ion exchange resin. When the mixer valve is open, the water bypasses the ion A micro switch detects when the door has exchange resin. been opened. The program is paused and Some models have a sensor, a reed switch, power to certain components (motor, valves to detect when the salt needs refilling.
  • Page 13 COMPONeNT INFORMATION Turbidity sensor Machines with an auto program have a turbidity sensor that measures how cloudy the water is. The sensor comprises an LED and a phototransistor. Between these two is the dishwater. The less light that reaches the phototransistor, the cloudier the water.

  • Page 14: Programs And Control Unit

    PROGRAMS AND CONTROl UNIT 5. Programs and control unit 5.1 Program Program Machine type DW70.1 DW70.3 DW70.5 DW70.4 Auto wash* Daily wash Heavy wash Sani*** (EU, AU) Pots & Pans*** (US) Normal wash Mixed wash** Upper half wash** Lower half wash**...

  • Page 15: Time Display

    PROGRAMS AND CONTROl UNIT 5.2 Time display Option Machine type DW70.1 DW70.3 DW70.5 DW70.4 : The program progress lamps DW70.1 Temperature around the Start button light up as the pro- Drying gram progresses (segment 1 for prewash, Delayed start segments 1 and  for main wash and so on).
  • Page 16 <10 KOHM WAX MOTOR 1.1 KOHM This document must not be copied without CIRCUIT DIAGRAM DW70.1, .3, .4, .5, .C FAN MOTOR 120V 0.18 KOHM our written pemission, and the contents thereof must not be imparted to a third party...
  • Page 17 PROGRAMS AND CONTROl UNIT 5.4 Timer diagram...

  • Page 18: Program Flow Description

    PROGRAMS AND CONTROl UNIT 5.5 Program flow description Presented below is the Quick program. If the component test in the service menu is not sufficient to identify a fault you can run this program and compare the results with the flow description below. If they are in agreement this indicates a correctly functioning control unit.

  • Page 19: Settings

    STOP STOP Variant 1 Variant Setting: Water hardness Panel type DW70.1, L = LED, S = Push button [°dh] (German water hardness scale) Variant settings All LEDs unlit When the power is switched on for the first time (also applies to machines without water softener)
  • Page 20 PROGRAMS AND CONTROl UNIT DW70.3 L 1 0 L 1 2 L 1 5 L 1 6 L 1 7 L 1 4 L 1 1 L 1 3 Panel type DW70., L = LED, S = Push button, Variant settings Setting: Water hardness [°dh] When the power is switched on for the first time All LEDs unlit0-5...
  • Page 21 PROGRAMS AND CONTROl UNIT Child safety catch Activating the settings menu: Turn off the main power switch (I/0) Wait at least 5 seconds Press and hold the temperature and drying op- tion buttons (S and S) Switch on the main power switch (I/0) Release the temperature and drying option buttons (S and S) Use the Program button (S1) to select the sta-...
  • Page 22 PROGRAMS AND CONTROl UNIT DW70.4 Store program (in shops, at trade shows etc.) Panel type DW70., L = LED, S = Push button Start by pressing and holding S with the main power switch (S5) turned on. Special settings Scrolling text is displayed: “Turbo Drying ...Super Cleaning System...Auto Turn on the main power switch, press the Menu but- Wash...Flexi Racks...Power Zone...8 Steel..Turbo...
  • Page 23 PROGRAMS AND CONTROl UNIT DW70.5 Panel type DW70.5, L = LED, S = Push button, Use the Program button (S1) to select a vari- D = Display Confirm with the Start button (S). The Variant settings program automatically returns to the main When the main power switch is switched on for menu.
  • Page 24 Wait at least 5 seconds Press and hold the Program button (S1) Switch on the main power switch (I/0) Release the Program button (S1). The machine will reset various settings, although not water hardness, language, variant and intake volume. The machine detects the presence of a turbidity sensor, a pressure sensor, a humidity sensor and a spray arm diverter.

  • Page 25: Service Menu

    DW70.3 Turn off the main power switch (I/0) Activating the service menu Wait at least 5 seconds DW70.1 Press and hold the Program and Start but- Turn off the main power switch (I/0) tons (S1 and S) Wait at least 5 seconds...
  • Page 26 PROGRAMS AND CONTROl UNIT DW70.4 Turn off the main power switch (S5) Display +15 %: Water intake volume increases by 15 % Wait at least 5 seconds Display Time: Time-controlled water intake Press and hold the Program and Start but- Display +5 %: Water intake volume increases by 5% tons (S1 and S) Display +10%: Water intake volume increases by 10%...
  • Page 27 PROGRAMS AND CONTROl UNIT DW70.5 Turn off the main power switch (I/0). Wait at least 5 seconds. Press and hold the Program and Start buttons (S1 and S). Switch on the main power switch (I/0). Release the Program and Start buttons (S1 and S) when the LEDs have lit.

  • Page 28: Troubleshooting

    TROUBleShOOTING 6. Troubleshooting 6.2 Common faults If the dishwasher does not work, you should 6.1 Dishwashing results first check whether this is due to a simple fault, something that the customer can rectify. Use Check the following points if the dishes are not the following questions to troubleshoot the clean (always begin by checking any fault codes machine.

  • Page 29: Water Level

    TROUBleShOOTING 6.3 Water level DW70 When servicing a DW70 dishwasher it is important to check the water level in the machine. This is particularly important when program- ming the time-controlled water intake. Too low a water level can cause poor dishwashing results.

  • Page 30: Fault Indication

    TROUBleShOOTING 6.4 Fault indication DW70.1 PROGRAM PROGRAM START START STOP STOP DW70. L 1 0 L 1 2 L 1 5 L 1 6 L 1 7 L 1 4 L 1 1 L 1 3 DW70. DW70.5 L - LED, S – Push button, F – Fault code or plain text on display, D - Display Clean filter: (only DW70.4)
  • Page 31 “Turbidity sensor fault” Check: Thermistor and control unit. 70.5 Fault code “FA” Only indicated in service menu. The machine Water intake fault (DW70.1 no indication) assumes high turbidity in case of “uncertain- 70. L flashes ty” in the auto program.

  • Page 32: Tools

    TOOlS Spray arm diverter fault (DW70.1 no indication) 7. Tools 70. L1 and L flash 7.1 Tools 70. “Diverter fault” The following tools are needed to service the DW70 dishwasher: 70.5 Fault code “FB” Position switch always closed or open. The Torx program continues.
  • Page 33 Article no. 80 8 8 rev. 01...

This manual is also suitable for:

Dw70.3Dw70.4Dw70.5

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