Bosch CLC6101i-W 50 HE Service Manual
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Bosch CLC6101i-W 50 HE Service Manual

Air/air heat pump
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MODELS
[1] SPECIFICATION ...............................................1-1
[2] EXTERNAL DIMENSION ..................................1-5
[3] WIRING DIAGRAM ...........................................1-7
[4] ELECTRICAL PARTS ........................................1-8
[1] BLOCK DIAGRAMS ..........................................2-1
[1] FUNCTION ........................................................3-1
[2] PAM Circuit ........................................................3-3
[3] IPM Drive Circuit ................................................3-5
[4] 180deg. Energizing Control ...............................3-6
OPERATIONS ....................................................4-1
THERMISTOR ERROR .....................................4-3
CHARACTERISTICS ........................................4-5
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety
!
and performance of the set.
"Vertical louver (V-louver)" in this document means "horizontal air flow louver" in the operation manual.
"Horizontal louver (H-louver)" in this document means "vertical air flow louver" in the operation manual.
SERVICE MANUAL
AIR/AIR HEAT PUMP
INDOOR UNIT
CLC6101i-W 50 HE
CLC6101i-W 65 HE
CLC8101i-W 65 HE(T/S/R)
CLC6001i-W 25 E
CLC6001i-W 35 E
CLC8001i-W 25 E(T/S/R)
CLC8001i-W 35 E(T/S/R)
In the interests of user-safety (Required by safety regulations in some countries) the set should be re-
stored to its original condition and only parts identical to those specified should be used.
CONTENTS
INDEPENDENTLY .............................................4-6
[7] OUTDOOR UNIT CHECK METHOD .................4-11
[8] TROUBLESHOOTING GUIDE ..........................4-13
[1] SCHEMATIC DIAGRAM ....................................5-1
[2] STANDARD CONDITION ..................................5-1
PRESSURE IN 3-WAY VALVE ...........................5-1
[4] PERFORMANCE CURVES ...............................5-3
[1] INDOOR UNIT ...................................................6-1
FAILURE DIAGNOSIS FLOWCHART
Climate Class 6100i / 6000i / 8100i / 8000i
S1101AYXP9YMBT
OUTDOOR UNIT
CLC6101i 50 HE
CLC6101i 65 HE
CLC8101i 65 HE
CLC6001i 25 E
CLC6001i 35 E
CLC8001i 25 E
CLC8001i 35 E
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.

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Summary of Contents for Bosch CLC6101i-W 50 HE

  • Page 1: Table Of Contents

    Climate Class 6100i / 6000i / 8100i / 8000i SERVICE MANUAL S1101AYXP9YMBT AIR/AIR HEAT PUMP INDOOR UNIT OUTDOOR UNIT CLC6101i-W 50 HE CLC6101i 50 HE CLC6101i-W 65 HE CLC6101i 65 HE CLC8101i-W 65 HE(T/S/R) CLC8101i 65 HE MODELS CLC6001i-W 25 E...

  • Page 2: Chapter 1. Product Specification

    PRODUCT SPECIFICATION [1] SPECIFICATION MODEL INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT CLC6101i-W 50 HE CLC6101i 50 HE CLC6101i-W 65 HE CLC6101i 65 HE ITEMS Rated cooling capacity (Min. - Max.) 2.5 ( 0.9 - 3.0 ) 3.5 ( 0.9 - 4.2 ) Rated heating capacity (Min.
  • Page 3 Climate Class 6100i / 6000i / 8100i / 8000i MODEL INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT CLC8101i-W 65 HE ITEMS CLC8101i 65 HE CLC6001i-W 25 E CLC6001i 25 E (T/S/R) Rated cooling capacity (Min. - Max.) 3.5 ( 0.9 - 4.2 ) 2.5 ( 0.9 - 3.0 ) Rated heating capacity (Min.
  • Page 4 Climate Class 6100i / 6000i / 8100i / 8000i MODEL INDOOR UNIT INDOOR UNIT OUTDOOR UNIT OUTDOOR UNIT CLC8001i-W 25 E ITEMS CLC6001i-W 35 E CLC6001i 35 E CLC8001i 25 E (T/S/R) Rated cooling capacity (Min. - Max.) 3.5 ( 0.9 - 4.2 ) 2.5 ( 0.9 - 3.0 ) Rated heating capacity (Min.
  • Page 5 Climate Class 6100i / 6000i / 8100i / 8000i MODEL INDOOR UNIT OUTDOOR UNIT CLC8001i-W 35 E ITEMS CLC8001i 35 E (T/S/R) Rated cooling capacity (Min. - Max.) 3.5 ( 0.9 - 4.2 ) Rated heating capacity (Min. - Max.) 4.2 ( 0.9 - 6.5 ) Moisture removal (at cooling) Liters/h...

  • Page 6: External Dimension

    Climate Class 6100i / 6000i / 8100i / 8000i [2] EXTERNAL DIMENSION 1. Indoor unit Length unit: mm 2. Outdoor unit For CLC6101i 50 HE/ CLC6101i 65 HE/ CLC6001i 25 E/ CLC6001i 35 E models Length unit: mm 71.5 10.5 37.5 164.5 167.5...
  • Page 7 Climate Class 6100i / 6000i / 8100i / 8000i For CLC8101i 65 HE/ CLC8001i 25 E/ CLC8001i 35 E models...

  • Page 8: Wiring Diagram

    Climate Class 6100i / 6000i / 8100i / 8000i [3] WIRING DIAGRAM 1. Indoor unit Definition for only Main No. code(Please refer to the service manual for more detail) BCN13 ADAPTER DISPLAY BOARD BCN8 CN208 1 Short circuit of outdoor unit thermistor BCN209 Press down AUX botton for 5 seconds while the...

  • Page 9: Electrical Parts

    Climate Class 6100i / 6000i / 8100i / 8000i For CLC8101i 65 HE/ CLC8001i 25 E/ CLC8001i 35 E models [4] ELECTRICAL PARTS 1. Indoor unit DESCRIPTION MODEL REMARKS Indoor fan motor DAI239P-H030A-3207 30W,Class E Transformer TE20SMSW-G08V DC 5V, 12V, 19V 2010 T 3.15A 250A 250V 3.15A 2.

  • Page 10: Chapter 2. Explanation Of Circuit And Operation [1] Block Diagrams

    Climate Class 6100i / 6000i / 8100i / 8000i CHAPTER 2. EXPLANATION OF CIRCUIT AND OPERATION [1] BLOCK DIAGRAMS 1. Indoor unit 3.15A FUSE Humidity detect circuit Humidity sensor Pipe temp. detect circuit Pipe temp. thermistor motor Horizontal louver (H-louver) motor drive circuit Horizontal louver (H-louver) WLAN module drive circuit WLAN Module...
  • Page 11 Climate Class 6100i / 6000i / 8100i / 8000i 2. Outdoor unit AC clock circuit Pulse amplitube modulation circuit IGBT FUSE protection Power supply Unit-unit wiring (AC power Smoothing Power factor Filter circuit circuit and serial signals) converter circuit circuit FUSE protection CPU oscillator circuit...

  • Page 12: Microcomputer Control System

    Climate Class 6100i / 6000i / 8100i / 8000i [2] MICROCOMPUTER CONTROL SYSTEM 1. Indoor unit 1.1. Printed wiring board Ver�cal louver Horizontal Louver (V-louver) PCI unit (H-louver) Thermistor Terminal board WLAN module Mo�on sensor DC fan motor...
  • Page 13 Climate Class 6100i / 6000i / 8100i / 8000i 2.Outdoor unit 2.1. Printed wiring board For CLC6101i 50 HE/ CLC6101i 65 HE/ CLC6001i 25 E/ CLC6001i 35 E models To terminal board ( Green/Yellow To terminal board (2) To terminal board (N) Blue From 4-way valve To terminal board (1)
  • Page 14 Climate Class 6100i / 6000i / 8100i / 8000i Climate 8100i / 8000i 2.Outdoor unit For CLC8101i 65 HE/ CLC8001i 25 E/ CLC8001i 35 E models 2.1. Printed wiring board To terminal board ( ) Green/Yellow To terminal board (2) Red To terminal board (N) Blue From 4-way Valve To terminal board (1) Brown...

  • Page 15: Chapter 3. Function [1] Function

    Climate Class 6100i / 6000i / 8100i / 8000i CHAPTER 3. FUNCTION 6. Outdoor unit fan delay control The compressor stops immediately after cooling or dehumidifying or [1] FUNCTION heating operation is shut down, but the outdoor unit fan continues 1 Restart control operation for 50 seconds.
  • Page 16 Climate Class 6100i / 6000i / 8100i / 8000i • Full power setting • Self cleaning • Multi Space setting • ECO setting 3) Disabling auto restart function By removing (cutting) jumper (JP0) on the printed circuit board(PCB), the auto restart function can be disabled. 12.

  • Page 17: Pam Circuit

    Climate Class 6100i / 6000i / 8100i / 8000i [2] PAM Circuit 1. PAM (Pulse Amplitude Modulation) The PAM circuit varies the compressor drive voltage. The IGBT shown in the block diagram charges the energy (electromotive force) generated by the reactor to the electrolytic capacitor for the inverter by turning ON and OFF. When the IGBT is ON, an electric current flows to the IGBT via the reactor (L1) and diode bridge (DB2).
  • Page 18 Climate Class 6100i / 6000i / 8100i / 8000i 2) AC clock (zero-cross) judgment • The clock circuit determines the time from one rising point of the clock waveform to the next rising point. The detected clock waveform is used to judge the power source frequency (50Hz). •...

  • Page 19: Ipm Drive Circuit

    Climate Class 6100i / 6000i / 8100i / 8000i [3] IPM Drive Circuit The IPM is used for compressor drive. The power supply for the IPM drive, the shunt resistance for over current detection, etc., are provided outside the IPM (control PWB). 1.

  • Page 20: 180Deg. Energizing Control

    Climate Class 6100i / 6000i / 8100i / 8000i [4] 180deg. Energizing Control This is the control system to moderate the speed by the current phase difference for higher efficiency and lower noise of the compressor. The current phase difference control is the control system paid attention to the interrelation between efficiency and phase gap generated by the applied voltage of motor and current in the coil of motor as shown in the figure below.

  • Page 21: Chapter 4. Function And Operation Of Protective Procedures [1] Protection Device Functions And Operations

    Climate Class 6100i / 6000i / 8100i / 8000i CHAPTER 4. FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES [1] PROTECTION DEVICE FUNCTIONS AND OPERATIONS * These models have following thermistors INDOOR UNIT OUTDOOR UNIT TH1, TH2 TH1, TH2, TH3, TH4, TH5 The errors for the thermistors that are not mentioned above are irrelevant.
  • Page 22 Climate Class 6100i / 6000i / 8100i / 8000i Self-diagnosis Operation result display Indoor Function Out- unit Indoor Description Detection period Reset condition door error unit unit display Outdoor unit heat Compressor stops if there is shortcircuit in out- At compressor Operation OFF or exchanger thermistor Yes ☆...

  • Page 23: Air Conditioner Operation In Thermistor Error

    Climate Class 6100i / 6000i / 8100i / 8000i [2] AIR CONDITIONER OPERATION IN THERMISTOR ERROR * These models have following thermistors INDOOR UNIT OUTDOOR UNIT TH1, TH2 TH1, TH2, TH3, TH4, TH5 The errors for the thermistors that are not mentioned above are irrelevant. These indoor units don’t have power relay.
  • Page 24 Climate Class 6100i / 6000i / 8100i / 8000i When resistance is When resistance is Control opera- low (temperature high (temperature Item Mode Short-circuit Open-circuit tion judged higher than judged lower than actual) actual) Outside air tem- Auto Operation mode Cooling mode is Outdoor unit Heating mode is ac-...

  • Page 25: Thermistor Temperature Characteristics

    Climate Class 6100i / 6000i / 8100i / 8000i [3] THERMISTOR TEMPERATURE CHARACTERISTICS 1.Indoor unit To measure the resistance, first remove the connector from the board. BCN7 100K Room temperature thermistor TH1 20ºC resistance 1 2.65 Ω Heat exchange temperature thermistor TH2 (Orange) 25ºC resistance 15 k Ω...

  • Page 26: How To Operate The Outdoor Unit Independently

    Climate Class 6100i / 6000i / 8100i / 8000i [4] HOW TO OPERATE THE OUTDOOR UNIT INDEPENDENTLY 1.Cooling in 40 Hz fixed mode To operate the outdoor unit independently, short-circuit the sections indicated by arrows in the diagram below with an adapter, and apply 230 VAC between (1) and (N) on the terminal board of the outdoor unit.
  • Page 27 Climate Class 6100i / 6000i / 8100i / 8000i Main cause Inspection method Normal value/condition Remedy Use Sevick light (Hitachi). Check if Sevick light (Hitachi) Signal may not be received Replace light or change posi- is used. sometimes due to effect of tion.

  • Page 28: Malfunction (Parts) Check Method

    Climate Class 6100i / 6000i / 8100i / 8000i 9.Operation stops after a few minutes and restarts, and this process repeats Main cause Inspection method Normal value/condition Remedy Dried-up electrolytic capacitor. Measure 290-VDC line voltage. 250 V or higher. Replace outdoor unit PWB. Layer short-circuit in expansion Measure resistance.
  • Page 29 Climate Class 6100i / 6000i / 8100i / 8000i Inverter electrolytic capacitor (C5,C6:For CLC6101i 50/65 HE/ CLC6001i 25/35 E models;C8,C9:For CLC8101i 65 HE/ CLC8001i 25 /35 models) check method Turn off the power, let the inverter electrolytic capacitor (C5,C6:For CLC6101i 50/65 HE/ CLC6001i 25/35 E models;C8,C9:For CLC8101i 65 HE/ CL- C8001i 25 /35 models) discharge completely, and remove the capacitor from the control printed circuit board (PWB).
  • Page 30 Climate Class 6100i / 6000i / 8100i / 8000i 6.Motion sensor trouble-shooting ! CAUTION ! • Sometimes, the buzzer sound is not stable for 3 minutes at just after pluging the power supply. • Sometimes, the buzzer sound lags behind movement. Press the AUX button.

  • Page 31: Outdoor Unit Check Method

    Climate Class 6100i / 6000i / 8100i / 8000i [7] OUTDOOR UNIT CHECK METHOD After repairing the outdoor unit, conduct the following inspection procedures to make sure that it has been repaired completely. Then, operate the com- pressor for a final operation check. 1.
  • Page 32 Climate Class 6100i / 6000i / 8100i / 8000i 2. Caution in checking printed circuit boards (PWB) 2.1. Non-insulated control circuit The GND terminals of the low-voltage circuits (control circuits for microcomputer and thermistors and drive circuits for expansion valve and relays) on the control printed circuit board (PWB) are connected to the compressor drive power supply (320-VDC negative terminal).

  • Page 33: Troubleshooting Guide

    Climate Class 6100i / 6000i / 8100i / 8000i [8] TROUBLESHOOTING GUIDE 1. Self-Diagnosis Function 1.1 Indoor unit • At below situation, the operation lamp (Green), timer lamp (Orange) and WLAN lamp(Green) flash to indicate the information of malfunction. Error code main sub OPERATION Lamp (flash 2 times) TIMER Lamp (flash 3 times)
  • Page 34 Climate Class 6100i / 6000i / 8100i / 8000i 1.2. Outdoor unit • The self-diagnosis is indicated the error information by flashing LED1 on the outdoor unit. • The self-diagnosis of outdoor unit is displayed for about 3-10 minutes. Then, the LED1 returns to normal display. LED1 2.
  • Page 35 Climate Class 6100i / 6000i / 8100i / 8000i 3.CHART FOR READING SELF-DIAGNOSIS RESULT Outdoor Malfunction Content of diagnosis unit No.* Problem indica- Check point Action symptom tion Main Main (LED1) Normal Normal Normal condition blinking Indoor and 1-time Outdoor unit Heat exchanger 1) Measure the resistanceof 1) Replace the outdoor...
  • Page 36 Climate Class 6100i / 6000i / 8100i / 8000i Outdoor Malfunction Content of diagnosis unit No.* Problem indica- Check point Action symptom tion Main Main (LED1) Indoor unit 2-time Cycle Compressor dis- 1) (Temporary stop for cycle operates. temperature charge overheat. protection) Outdoor Outdoor unit...
  • Page 37 Climate Class 6100i / 6000i / 8100i / 8000i Outdoor Malfunction Content of diagnosis unit No.* Problem indica- Check point Action symptom tion Main Main (LED1) Indoor and 7-time Outdoor unit AC AC over current 1) Check the outdoor unit 1) Ensure unobstructed air outdoor Current...
  • Page 38 Climate Class 6100i / 6000i / 8100i / 8000i Outdoor Malfunction Content of diagnosis unit No.* Problem indica- Check point Action symptom tion Main Main (LED1) Indoor and 11-time Outdoor unit Outdoor unit DC 1) Check if the fan IPM ter- 1) Replace the outdoor outdoor DC fan...
  • Page 39 Climate Class 6100i / 6000i / 8100i / 8000i Outdoor Malfunction Content of diagnosis unit No.* Problem indica- Check point Action symptom tion Main Main (LED1) Indoor and 13-time Compressor 1) Check the colors (red, 1) Correct the installation. outdoor compressor startup error white, orange) of the...
  • Page 40 Climate Class 6100i / 6000i / 8100i / 8000i Outdoor Malfunction Content of diagnosis unit No.* Problem indica- Check point Action symptom tion Main Main (LED1) Indoor unit Lighting Wiring Serial opencircuit 1) Check the wires between 1) Connect stable power operates.
  • Page 41 Climate Class 6100i / 6000i / 8100i / 8000i Outdoor Malfunction Content of diagnosis unit No.* Problem indica- Check point Action symptom tion Main Main (LED1) Indoor and Normal Wireless LAN WLAN module 1) Check WLAN module 1) Confirm assembly. outdoor blinking communication...
  • Page 42 Climate Class 6100i / 6000i / 8100i / 8000i Malfunction indications due to erroneous wiring during air conditioner installation Inter-unit wiring error mode Symptom Malfunction diagnosis display “18-1” Indoor Outdoor unit unit Malfunction diagnosis display None (Displays “17-0” when malfunction code is called out.) Indoor Outdoor unit...

  • Page 43: Chapter 5. Refrigeration Cycle [1] Schematic Diagram

    Expansion Comp- valve ressor Coil Reverse valve Condenser Only model CLC6101i-W 50 HE / CLC6101i 50 HE, CLC8101i-W 65 HE(T/S/R) have antifreeze pipe. [2] STANDARD CONDITION Indoor side Outdoor side Dry-bulb Temp. (°C) Relative Humidity (%) Dry-bulb Temp. (°C) Relative Humidity (%)
  • Page 44 Climate Class 6100i / 6000i / 8100i / 8000i CLC8101i-W 65 HE(T/S/R), CLC8101i 65 HE CLC6001i-W 25 E, CLC6001i 25 E Model Cooling Heating Cooling Heating Mode Max *1 Test Run *2 Max *1 Test Run *2 Max *1 Test Run *2 Max *1 Test Run *2 Ampere(A)

  • Page 45: Performance Curves

    Climate Class 6100i / 6000i / 8100i / 8000i [4] PERFORMANCE CURVES NOTE 1) Indoor fan speed: High 2) Indoor air temp.: Cooling 27°C 3) Power source: 230V, 50Hz CLC6101i-W 50 HE, CLC6101i 50 HE Cooling Heating Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating Outdoor Air Temp.(℃）...
  • Page 46 Climate Class 6100i / 6000i / 8100i / 8000i CLC6101i-W 65 HE, CLC6101i 65 HE Heating Cooling Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating 1050 1000 Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Heating Cooling 15.5 42.0 39.5 14.5 37.0 13.5 34.5 12.5...
  • Page 47 Climate Class 6100i / 6000i / 8100i / 8000i CLC8101i-W 65 HE(T/S/R), CLC8101i 65 HE Heating Cooling Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating 1000 Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Heating Cooling 16.0 40.0 37.5 15.0 35.0 14.0 32.5 13.0 30.0...
  • Page 48 Climate Class 6100i / 6000i / 8100i / 8000i CLC6001i-W 25 E, CLC6001i 25 E Cooling Heating Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating 17.0 37.0 16.0 35.0 33.0 15.0 31.0 14.0 29.0 13.0...
  • Page 49 Climate Class 6100i / 6000i / 8100i / 8000i CLC6001i-W 35 E, CLC6001i 35 E Cooling Heating Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating 1050 1000 Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Heating Cooling 15.0 40.0 14.0 38.0 36.0 13.0 34.0 12.0...
  • Page 50 Climate Class 6100i / 6000i / 8100i / 8000i CLC8001i-W 25 E(T/S/R), CLC8001i 25 E Heating Cooling Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating 18.0 38.0 17.0 35.0 32.0 16.0 29.0 15.0 26.0 14.0...
  • Page 51 Climate Class 6100i / 6000i / 8100i / 8000i CLC8001i-W 35 E(T/S/R), CLC8001i 35 E Cooling Heating Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Cooling Heating Outdoor Air Temp.(℃） Outdoor Air Temp.(℃） Heating Cooling 16.0 38.0 15.0 36.0 34.0 14.0 32.0 13.0 30.0 12.0...

  • Page 52: Chapter 6. Disassembly Procedure

    Climate Class 6100i / 6000i / 8100i / 8000i CHAPTER 6. DISASSEMBLY PROCEDURE If, in carrying out repairs and modifications, the work requires the use of arc- and flame-producing apparatus, such as welding , brazing and soldering equipment, this work shall only be started after the rooms have been thoroughly ventilated. While the work is being carried out , the mechanical ventilation, if any, shall be kept in constant operation and all windows and doors kept open.
  • Page 53 Press below position to unfasten the hooks in side of Front Panel, then take the Front Panel out. - Take the left side Louver Bushing out. 8) Cut the Wire Fixing Band and remove the Thermistor. (CLC6001i-W 25/35 E, CLC6101i-W 50 HE) -Take the Horizontal Louver out. (H-louver) 7) Remove 2 screws fixing the Front Panel.
  • Page 54 Climate Class 6100i / 6000i / 8100i / 8000i 9) Remove 2 screw fixing the Ground wire. 10) Take off the Contorl Box Cover. (CLC6101i-W 65 HE) 14) Use a pincer to press the 4 spacer into the Control Angle to 11) Cut the wire fixing band and remove all the connectors.
  • Page 55 Climate Class 6100i / 6000i / 8100i / 8000i - Slide the PCI cover to right side, then lift it to take it out 16) Remove Center LED UNIT. - Release the hook of Stabilizer R Ass’Y, rolate Stabilizer R Ass’Y out. - Release the hook of Stabilizer R&L Ass’Y, rolate Stabilizer R&L Ass’Y out.
  • Page 56 Climate Class 6100i / 6000i / 8100i / 8000i 17) Remove the screw of Louver Motor, then take the Motor out. 23) Hold and press the Cross Flow Fan to left side as much as possible, meanwhile, take Fan Motor out. 18) Release Arm Auto/Manual from Louver Link R.
  • Page 57 REPLACE WIRELESS ADAPTER Maintenance shall be made by service personnel full of knowl- edge about wireless LAN. Please contact BOSCH for replacement. 1) Remove the Connector of Wireless adapter, and take it off from Control unit. 27) Enlarge the angle between Tube Ass’y and Cabinet. Then take the Evaporator out.

  • Page 58: Outdoor Unit (Clc6101I 50/65 He, Clc6001I 25/35 E)

    Climate Class 6100i / 6000i / 8100i / 8000i [2] OUTDOOR UNIT (CLC6101i 50/65 HE, CLC6001i 25/35 E) 1) Remove the screw fixing the Cover, then take the cover out. 2) Remove the screw fixing Terminal Cover 5) Remove seven screws fixing the Front and Cord Clamp, then take them out.
  • Page 59 Climate Class 6100i / 6000i / 8100i / 8000i 6) Cut the Wire Fixing Band. Remove two terminals from the Reator and all connectors on the Control Board Unit, and remove compressor conector. 10) Disconnect three terminals on the Compressor. 7) Remove four screws fixing the Control Box, then take it out.
  • Page 60 Climate Class 6100i / 6000i / 8100i / 8000i 13) Unscrew the nut, take out the Propeller 3) Lift up to remove the metal cover. Fan carefully. 4) Remove the screw fixing the earth wire. 14) Remove all screws, take out the Motor. 5) Move out the Heat Sink Holder.
  • Page 61 Climate Class 6100i / 6000i / 8100i / 8000i - THERMISTOR ASSEMBLY INSTALLATION DRAWING MODEL: CLC6101i 50 HE / CLC6101i 65 HE Outdoor temperature thermistor TH3(Green) Suction thermistor TH4(Black) Compressor thermistor TH1(Red) 2way valve thermistor Heat exchange TH5(Yellow) thermistor TH2(Orange) MODEL: CLC6001i 25 E / CLC6001i 35 E Outdoor temperature thermistor...

  • Page 62: Outdoor Unit(Clc8101I 65 He, Clc8001I 25/35 E)

    Climate Class 6100i / 6000i / 8100i / 8000i [3] OUTDOOR UNIT(CLC8101i 65 HE, CLC8001i 25/35 E) 1 Body’s decomposition steps Disassemble the screw fixing side cover, then disassemble the Disassemble the front cabinet ass’y.(5 screws in front side, side cover. 4 screws in right side.) Disassemble fixing terminal cover and a screw of cord clamp, then remove them.
  • Page 63 Climate Class 6100i / 6000i / 8100i / 8000i Disassemble the screw fixing control box ass’y. (1 screw) 12） Remove compressor cover.(1 pcs) Pull down the terminals connecting the electric box substrate. 13） Disassemble Bulkhead ass’y.(2 screws) Take out the thermistor lead wire from guide groove. 14）...
  • Page 64 Climate Class 6100i / 6000i / 8100i / 8000i Disassemble compressor terminal cover.(1 nut) Disassemble fan motor angle ass’y .(2 screws) Then disassemble the compressor connecting terminal. Compressor：GMCC Disassemble thermistors(4 pieces) and thermistor clamps(1 piece) . Disassemble fan motor angle .(2 screws) 2.Electrical parts exchange methods of outdoor control box unit.
  • Page 65 Climate Class 6100i / 6000i / 8100i / 8000i Notice: 4)Disassemble terminal holder, if terminal holder broken.(1 screw) 1. Exchange outdoor circuit board. 1) Remove the fixing terminals(T5, 7~9). (Pull it out after pressing the delocking pin.) 2) Reconnect terminals in order after exchanging the control basal lamina.
  • Page 66 Climate Class 6100i / 6000i / 8100i / 8000i - THERMISTOR ASSEMBLY INSTALLATION DRAWING MODEL: CLC8101i 65 HE, CLC8001i 25/35 E Outdoor temperature thermistor (Green) Compressor thermistor Suction thermistor (Red) (Black) Heat exchange thermistor TH2(Orange) Two valves thermistor (Yellow) 6-15...

  • Page 67: Parts List

    Climate Class 6100i / 6000i / 8100i / 8000i PARTS LIST AIR/AIR HEAT PUMP INDOOR UNIT OUTDOOR UNIT CLC6101i-W 50 HE CLC6101i 50 HE CLC6101i-W 65 HE CLC6101i 65 HE CLC8101i-W 65 HE(T/S/R) CLC8101i 65 HE MODELS CLC6001i-W 25 E...
  • Page 68 Climate Class 6100i / 6000i / 8100i / 8000i [1] INDOOR UNIT (CLC8101i_CLC8001i) 4-6-1 5-11 3-1-2 3-1-1 3-3 3-4 2-16 2-15 2-17 5-10 5-16 2-13 2-6-1 2-10 4-11 2-11 4-10 2-12 5-31 5-32 5-33 4-16 5-38 4-14 5-17 5-34 5-35 4-19 5-5-2 5-15...
  • Page 69 Climate Class 6100i / 6000i / 8100i / 8000i...
  • Page 70 MARK DHLD-A127JBKZ CORD HOLDER ASSY XTTS740P20000 TAPPING SCREW XTTS745P30000 TAPPING SCREW UBATUA027JBE0 BATTERY PACK CRMC-B078JBEZ RCU NORDIC BOSCH YHB [CLC8101i] CRMC-B080JBEZ RCU AVERAGE BOSCH YHR [CLC8001i] TiNS-B855JBRZ INSTALLATION MANUAL [CLC8101i] TiNS-B858JBRZ INSTALLATION MANUAL [CLC8001i] TiNSEB092JBRZ OPERATION MANUAL [CLC8101i] TiNSEB094JBRZ OPERATION MANUAL [CLC8001i]...
  • Page 71 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 4-13 PDAI-A395JBWZ EARTH PLATE 4-14 PSPA-A238JBEZ SPACER 4-15 QTANZA157JBZZ TERMINAL BORAD 4-16 QW-VZH003JBZZ LEAD WIRE-E 4-17 RH-HXA268JBZZ THERMISTOR 4-18 FSGY-E835JBKZ DISPLAY BOARD(Service) 4-19 RFIL-A151JBEZ FERRITE CORE CKiTTA288JBKZ PCI UNIT ASS'Y(White)
  • Page 72 MARK DHLD-A129JBKZ CORD HOLDER ASSY(Drak Gray) XTTS740P20000 TAPPING SCREW XTTS745P30000 TAPPING SCREW UBATUA027JBE0 BATTERY PACK CRMC-B078JBEZ RCU NORDIC BOSCH YHB [CLC8101i] CRMC-B080JBEZ RCU AVERAGE BOSCH YHR [CLC8001i] TiNS-B855JBRZ INSTALLATION MANUAL [CLC8101i] TiNS-B858JBRZ INSTALLATION MANUAL [CLC8001i] TiNSEB092JBRZ OPERATION MANUAL [CLC8101i] TiNSEB094JBRZ...
  • Page 73 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 4-13 PDAI-A395JBWZ EARTH PLATE 4-14 PSPA-A238JBEZ SPACER 4-15 QTANZA157JBZZ TERMINAL BORAD 4-16 QW-VZH003JBZZ LEAD WIRE-E 4-17 RH-HXA268JBZZ THERMISTOR 4-18 FSGY-E835JBKZ DISPLAY BOARD(Service) 4-19 RFIL-A151JBEZ FERRITE CORE CKiTTA313JBKZ PCI UNIT ASS'Y(Dark Gray)
  • Page 74 MARK DHLD-A128JBKZ CORD HOLDER ASSY(Light Gray) XTTS740P20000 TAPPING SCREW XTTS745P30000 TAPPING SCREW UBATUA027JBE0 BATTERY PACK CRMC-B078JBEZ RCU NORDIC BOSCH YHB [CLC8101i] CRMC-B080JBEZ RCU AVERAGE BOSCH YHR [CLC8001i] TiNS-B855JBRZ INSTALLATION MANUAL [CLC8101i] TiNS-B858JBRZ INSTALLATION MANUAL [CLC8001i] TiNSEB092JBRZ OPERATION MANUAL [CLC8101i] TiNSEB094JBRZ...
  • Page 75 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 4-11 PCOV-C938JBWZ TERMINAL COVER 4-12 PCOV-C946JBEZ SENSOR LENS 4-13 PDAI-A395JBWZ EARTH PLATE 4-14 PSPA-A238JBEZ SPACER 4-15 QTANZA157JBZZ TERMINAL BORAD 4-16 QW-VZH003JBZZ LEAD WIRE-E 4-17 RH-HXA268JBZZ THERMISTOR 4-18...
  • Page 76 Climate Class 6100i / 6000i / 8100i / 8000i [2] INDOOR UNIT PARTS (CLC6101i_CLC6001i) 4-6-1 5-11 3-1-2 3-1-1 2-16 2-15 2-17 5-10 5-16 2-13 2-6-1 2-10 4-11 2-11 4-10 2-12 5-31 5-32 5-40 5-33 4-14 4-16 5-34 5-35 4-20 5-17 5-5-2 4-19 5-15...
  • Page 77 Climate Class 6100i / 6000i / 8100i / 8000i...
  • Page 78 PSEN-A100JBKZ FLARE NUT ASS'Y WIRELESS ADAPTER DHLD-A126JBKZ LED HOLDER R ASS'Y DSGY-H756JBKZ CONTROL BOARD(Service) [CLC6101i-W 65 HE] DSGY-H755JBKZ CONTROL BOARD(Service) [CLC6101i-W 50 HE] DSGY-H759JBKZ CONTROL BOARD(Service) [CLC6001i-W 35 E] DSGY-H757JBKZ CONTROL BOARD(Service) [CLC6001i-W 25 E] FSGY-E705JBKZ SENSOR PWB-K 4-6-1 LHLD-B461JBFZ...
  • Page 79 PSTB-A020JBFA STABILIZER L 5-18 TLABCE379JBRZ WIRING DIAGRAM 5-24 TSPC-M808JBRA NAME LABEL [CLC6101i-W 65 HE] 5-24 TSPC-M761JBRA NAME LABEL [CLC6101i-W 50 HE] 5-24 TSPC-M762JBRA NAME LABEL [CLC6001i-W 35 E] 5-24 TSPC-M763JBRA NAME LABEL [CLC6001i-W 25 E] 5-31 PCAS-A127JBFA LED CASE 5-32...
  • Page 80 Climate Class 6100i / 6000i / 8100i / 8000i [3] OUTDOOR UNIT (CLC6101i_CLC6001i) 1-1-1 1-11-2 1-1-3 1-12 1-11-1 1-11-3 1-12-1 1-1-4 1-12-2 1-18 1-24 2-12 2-11 1-21 4-11 3-3-1 2-20 1-10 4-12 4-9 2-19 3-14 1-13 1-25 2-14 1-22 2-13 2-15 2-16 2-17...
  • Page 81 THERMISTOR HOLDER 1-14 MSPR-A026JBE0 SPRING 1-15 MSPR-A027JBE0 THERMISTOR SPRING 1-16 MSPR-A207JBEZ SPRING 1-17 TLABBA320JBRA BOSCH LABEL 1-18 TSPC-M740JBRZ NAME LABEL[CLC6101i 65 HE] 1-18 TSPC-M766JBRZ NAME LABEL[CLC6101i 50 HE] 1-18 TSPC-M786JBRZ NAME LABEL[CLC6001i 35 E] 1-18 TSPC-M785JBRZ NAME LABEL[CLC6001i 25 E]...
  • Page 82 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK DSGY-H778JBKZ CONTROL BOARD UNIT[CLC6101i 65 HE] DSGY-H779JBKZ CONTROL BOARD UNIT[CLC6001i 35 E] DSGY-H780JBKZ CONTROL BOARD UNIT[CLC6101i 50 HE] DSGY-H781JBKZ CONTROL BOARD UNIT[CLC6001i 25 E] RFIL-A149JBEZ FERRITE CORE LHLD-B196JBFA...
  • Page 83 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 3-13 PFPFPF502JBEZ COMPRESSOR INSU. B 3-14 PSEL-E942JBEZ CONDENSER SEAL 3-16 PGUM-A298JBEZ DAMPER RUBBER 3-17 PSEL-E938JBEZ BASE PAN SEAL SCREW AND NUT LX-BZA493JBEZ SPECIAL SCREW LX-BZA570JBEZ SPECIAL SCREW LX-NZA428JBEZ...
  • Page 84 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK PACKING PARTS CPADBA340JBKZ BOTTOM PAD ASS'Y CPADBA032JBKZ PACKING PAD ASS'Y SPAKCE852JBEZ PACKING CASE SPADP0300YDE0 TLABMH261JBRZ PRODUCT LABEL[CLC6101i 65 HE] TLABMH307JBRZ PRODUCT LABEL[CLC6101i 50 HE] TLABMH335JBRZ PRODUCT LABEL[CLC6001i 35 E] TLABMH334JBRZ...
  • Page 85 Climate Class 6100i / 6000i / 8100i / 8000i [4] OUTDOOR UNIT (CLC8101i_CLC8001i) Outdoor Unit Parts 7-31 3-12 3-15 7-30 3-19 3-15-2 7-31 3-19-2 3-15-5 3-20-4 3-20 3-20-5 3-19-1 3-59 7-25 3-15-4 3-20-6 7-31 3-16-2 7-30 7-31 3-16-1 3-16 3-15-3 3-62 3-16-3 3-15-2...
  • Page 86 Climate Class 6100i / 6000i / 8100i / 8000i 3-55 3-55 5-37 5-18 5-18 5-41 3-55 5-18 5-17 5-19 5-17 5-17 5-36 5-37 5-16 5-38 5-16-1 7-28 5-15 5-40 5-39 5-1-1 5-42 5-36 5-1-3 5-21 3-56 7-25...
  • Page 87 Climate Class 6100i / 6000i / 8100i / 8000i Reverse Value Ass’y 7-28...
  • Page 88 Climate Class 6100i / 6000i / 8100i / 8000i Expansion Value Ass’y...
  • Page 89 FAN GUARD ASS'Y 3-4-3 PSEL-E612JBEZ SEAL 3-4-4 PSEL-E613JBEZ SEAL 3-4-6 PSEL-E614JBEZ SEAL 3-4-7 PSEL-E615JBEZ SEAL 3-4-8 TLABBA325JBRA BOSCH LABEL 3-4-9 LHLD-B498JBFB DISC HOLDER 3-4-10 PCOV-C910JBRB CENTER DISC 3-4-11 CCOV-A418JBKZ COVER UP ASS'Y 3-4-12 PCOV-C913JBFA FRONT COVER DOWN PSEL-E756JBEZ SEAL PSEL-E618JBEZ...
  • Page 90 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 3-20-1 LHLD-0079SRFZ CORD CLAMP 3-20-2 LHLD-A492JBFZ CORD CLAMP BASE 3-20-3 XCTS740P14000 TAPPING SCREW 3-20-4 PSEL-E662JBEZ SEAL 3-20-5 PSEL-E616JBEZ SEAL 3-20-6 PSEL-E617JBEZ SEAL 3-20-7 PSEL-E997JBEZ SEAL 3-22 PFPFPF098JBEZ...
  • Page 91 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 5-4-3 LX-NZA476JBEZ SPECIAL NUT PGUM-A264JBEZ DAMPER RUBBER PGUMSA428JBEZ DAMPER RUBBER GLEG-A191JBEZ COMPRESSOR CUSHION DVLV-B740JBKZ EXPAN.VALVE ASS'Y 5-8-1 PVLVRA060JBEZ VALVE BASE 5-8-2 RMOTSA073JBZZ VALVE MOTOR 5-8-3 PSRN-A102JBEZ STRAINER...
  • Page 92 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 7-30 LX-BZA447JBEZ HEX SCREW 4-10 7-31 LX-BZA571JBEZ HEX SCREW 4-10 3-20-3 XCTS740P14000 TAPPING SCREW 7-32 XCPS730P10XS0 TAPPING SCREW 7-33 XCPS730P14XS0 TAPPING SCREW 3-64 REF. PRICE PARTS CODE DESCRIPTION...
  • Page 93 FAN GUARD ASS'Y 3-4-3 PSEL-E612JBEZ SEAL 3-4-4 PSEL-E613JBEZ SEAL 3-4-6 PSEL-E614JBEZ SEAL 3-4-7 PSEL-E615JBEZ SEAL 3-4-8 TLABBA325JBRA BOSCH LABEL 3-4-9 LHLD-B498JBFB DISC HOLDER 3-4-10 PCOV-C910JBRB CENTER DISC 3-4-11 CCOV-A418JBKZ COVER UP ASS'Y 3-4-12 PCOV-C913JBFA FRONT COVER DOWN PSEL-E756JBEZ SEAL PSEL-E618JBEZ...
  • Page 94 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 3-19-2 JHNDPA042JBFD GRIP 3-20 CPLT-A342JBKZ SIDE COVER R ASS'Y 3-20-1 LHLD-0079SRFZ CORD CLAMP 3-20-2 LHLD-A492JBFZ CORD CLAMP BASE 3-20-3 XCTS740P14000 TAPPING SCREW 3-20-4 PSEL-E662JBEZ SEAL 3-20-5 PSEL-E616JBEZ...
  • Page 95 Climate Class 6100i / 6000i / 8100i / 8000i REF. PRICE PARTS CODE DESCRIPTION RANK MARK 5-4-2 PGUM-A292JBEZ TERMINAL GASKET 5-4-3 LX-NZA476JBEZ SPECIAL NUT PGUM-A264JBEZ DAMPER RUBBER PGUMSA428JBEZ DAMPER RUBBER GLEG-A191JBEZ COMPRESSOR CUSHION DVLV-B751JBKZ EXPAN.VALVE ASS'Y 5-8-1 PVLVRA060JBEZ VALVE BASE 5-8-2 RMOTSA073JBZZ VALVE MOTOR...
  • Page 96 Climate Class 6100i / 6000i / 8100i / 8000i 3-64 REF. PRICE PARTS CODE DESCRIPTION RANK MARK [5] OUTDOOR ACCESSORY PARTS TINS-B854JBRZ PRODUCT FICHE SHEET TLAB-J748JBEZ EU ENERGY LABEL [CLC8001i 35 E] TLAB-J750JBEZ EU ENERGY LABEL [CLC8001i 25 E] [6] OUTDOOR PACKING PARTS CPADBA336JBKZ BOTTOM PAD ASS'Y CPADBA270JBKZ...
  • Page 97 Climate Class 6100i / 6000i / 8100i / 8000i Failure diagnosis flowchart Table of contents Error code Contents Short circuit of ODU thermistor Overheat error (Compressor or cycle) Open circuit of ODU thermistor DC current error AC current error Cycle error ODU fan motor error Compressor rotation error PAM error...
  • Page 98 Climate Class 6100i / 6000i / 8100i / 8000i ·The lead wire sheath of the ODU thermistor has been damaged due to edge or long-time 　 friction by vibration, and the wire toches the pipe, etc. Check if the resistance of each ODU thermistor is correct as shown in graph below.
  • Page 99 Climate Class 6100i / 6000i / 8100i / 8000i Overheat error 2-0 Compressor high temperature error Error Code 2-1 Compressor discharge overheat 2-2 Outdoor unit overheat (Compressor or cycle) 2-3 Indoor unit overheat 2-5 IPM high temperature error Check the failure of compressor Main cause ·Temperature of compressor or cycle parts becomes too high.
  • Page 100 Climate Class 6100i / 6000i / 8100i / 8000i · The lead wire of ODU thermistor has broken due to the edge or vibration. · The attachment of connector has broken by inside tension due to unsuitable wiring process. Check if ODU thermistors are firmly installed and connected with ODU PWB properly.
  • Page 101 Climate Class 6100i / 6000i / 8100i / 8000i Before the compressor starts Within 1 second after the More than 1 second after the operating compressor started operating compressor started operating...
  • Page 102 Climate Class 6100i / 6000i / 8100i / 8000i Air conditioner stopped with error 6 before compressor starts operating. Check if the valves (2-way and 3-way) are closed. Measure if the pressure of refrigerant is proper by gauge manifold for checking the refrigerant volume.
  • Page 103 Climate Class 6100i / 6000i / 8100i / 8000i Air conditioner stopped with error 6 within 1 second after the compressor started operating. Check if the power supply voltage is within rated voltage±10%. Connect air conditioner to power supply with proper voltage. Check if the valves (2-way and 3-way) are closed.
  • Page 104 Climate Class 6100i / 6000i / 8100i / 8000i Air conditioner stopped with error 6 when more than 1 second after the compressor started operating Connect air conditioner to stable power Check if the power supply is fluctuant or has momentary power failure.
  • Page 105 Climate Class 6100i / 6000i / 8100i / 8000i Check if the power supply voltage during comperessor operating is within rated voltage ±10%. Correct the cable between IDU and ODU , or connect air conditioner to stable power source. Check if the air filter and heat exchanger of IDU has been blocked by dust etc, or the ODU air outlet has been blocked.
  • Page 106 Climate Class 6100i / 6000i / 8100i / 8000i Check if all ODU thermistor are at the correct position. resistance Connect air conditioner to stable power source. Check if the resistance of each ODU thermistor is correct. (Refer to THERMISTOR TEMPERATURE CHARACTERISTICS) Check if the compressor operates normally.
  • Page 107 Climate Class 6100i / 6000i / 8100i / 8000i Check if the temperature of ODU heat exchanger pipe and 2-way valve changes properly. (Refer to below method.) In cooling mode: Whether the ODU heat exchanger pipe has higher temperature and the 2-way valve pipe has lower one. In heating mode: Whether the ODU heat exchanger pipe has lower temperature and Check if IDU pipe temperature...
  • Page 108 Climate Class 6100i / 6000i / 8100i / 8000i Check if the resistance of 4-way valve coil is correct. Check if there is AC voltage applied on CN4 of ODU PWB just before the compressor starts. Check if the 4-way-valve can switch normally by confirming the operating sound.
  • Page 109 Climate Class 6100i / 6000i / 8100i / 8000i Check if fan motor connector (CN3) on ODU PWB is connected properly. Connect CN3 onto ODU PWB correctly. Check whether can operate normally by using another ODU fan motor.
  • Page 110 Climate Class 6100i / 6000i / 8100i / 8000i ·Temperature of compressor becomes too high. Whether this error occurs when compressor is just starting. Check if the compressor wires are connecting correctly. (Both on PWB side and compressor side) wires Check if the IPM terminal resistance values are correct.
  • Page 111 Climate Class 6100i / 6000i / 8100i / 8000i ·Temperature of compressor becomes too high. (From previous page) 13-2 error Check ODU PWB as below method 【Check points】 ①Whether there is soldering failure on IPM shunt resistor. (e.g. R230/231/232/233/234) ②Whether the IPM is short circuit. (Refer to IPM check method.) Check if the compressor is locked.
  • Page 112 Climate Class 6100i / 6000i / 8100i / 8000i 14-2 Abnormal AC power supply voltage or DC low voltage error Check if the AC power supply voltage is within rated voltage±10%. Connect air conditioner to power supply with proper voltage. Check if the power supply is fluctuant or has momentary power failure.
  • Page 113 Climate Class 6100i / 6000i / 8100i / 8000i Check if connection cables between IDU and ODU are connecting in the correct position on both two terminal boards. Correct the position of connection cables on both two terminal boards. Check if connection cables are connected firmly on both two terminal boards.
  • Page 114 Climate Class 6100i / 6000i / 8100i / 8000i Check if the error is disappeared by replacing the ODU terminal board. Check if two lead wires of reactor are connected and locked properly onto the terminal of the reactor. Connect two lead wires onto the reactor correctly and ensure the terminals be locked.
  • Page 115 Climate Class 6100i / 6000i / 8100i / 8000i Check if connection cables between IDU and ODU are connected with two terminal boards properly. Connect the connection cables correctly on both two terminal boards. Check if the error is disappeared by replacing the IDU PWB.
  • Page 116 Climate Class 6100i / 6000i / 8100i / 8000i Check if fan motor connector (CN8) on IDU PWB is connected properly. Connect the CN8 correctly. Check if the IDU fan could physically rotates smoothly by turning it with finger.
  • Page 117 Climate Class 6100i / 6000i / 8100i / 8000i Check if the WLAN module is connected onto the IDU PWB properly. Check if the pairing could be successful by replacing the WLAN module.
  • Page 118 Climate Class 6100i / 6000i / 8100i / 8000i Check if the power of the WLAN router has been turned on. Check if the pairing could be successful by moving the WLAN router closer to the air conditioner. Check if the pairing could be successful by replacing the WLAN module.
  • Page 119 Climate Class 6100i / 6000i / 8100i / 8000i Check if the room temperature thermistor is firmly installed and connected with IDU PWB properly. Correct the installation of the thermistor and the connector on IDU PWB. Check if the lead wire of the room temperature thermistor is broken or the sheath of it is damaged leading to short circuit.
  • Page 120 Climate Class 6100i / 6000i / 8100i / 8000i Check if the pipe temperature thermistor is firmly installed and connected with IDU PWB properly. Correct the installation of the thermistor and the connector on IDU PWB. Check if the lead wire of the pipe temperature thermistor is broken or the sheath of it is damaged leading to short circuit.

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