Table Of Contents - Daikin VAM350J8VEB Service Manual

Table of Contents

Service manual
4
draft - 07/02/2022 15:12
Table of Contents
1 Safety precautions
1.1 Meaning of warnings and symbols.................................................................................................................................
1.2 Dangers ...........................................................................................................................................................................
1.3 Warnings .........................................................................................................................................................................
1.4 Cautions .......................................................................................................................................................................... 13
1.5 Notices ............................................................................................................................................................................ 13
2 General operation
3 Troubleshooting
3.1 To retrieve error codes and check error history ............................................................................................................ 19
3.1.1 Via the indoor unit remote controller BRC1H ............................................................................................... 19
3.2 Error based troubleshooting........................................................................................................................................... 21
3.2.1 A0-00 - External protection device activated ............................................................................................... 21
3.2.2 A0-11 - R32 leakage detection ...................................................................................................................... 22
3.2.3 A1-00 - Main PCB abnormality ...................................................................................................................... 23
3.2.4 A3-00 - Drain water level abnormality .......................................................................................................... 23
3.2.5 A3-08 - Drain pump connector open ............................................................................................................ 24
3.2.6 A6-01-02-05-06 - Fan motor abnormality - motor lock................................................................................ 25
3.2.7 A6-10-12-14-16 - Fan motor abnormality - overcurrent or IPM protection................................................ 26
3.2.8 A6-11-13-15-17 - Fan motor abnormality - position detection error .......................................................... 27
3.2.9 A6-22 - Unstable fan rpm .............................................................................................................................. 28
3.2.10 A6-28 - Airflow rate below critical threshold................................................................................................ 28
3.2.11 A6-29 - Airflow rate too low .......................................................................................................................... 29
3.2.12 A6-30 - Airflow rate lower than normal ........................................................................................................ 30
3.2.13 A8-01 - Fan motor abnormality - power supply abnormality....................................................................... 31
3.2.14 A9-01 - Y1E Expansion valve coil abnormality .............................................................................................. 31
3.2.15 A9-02 - Y1E Expansion valve body abnormality ............................................................................................ 32
3.2.16 AF-00 - Drain back flow ................................................................................................................................. 33
3.2.17 AJ-01 - A1P Capacity setting error................................................................................................................. 34
3.2.18 AJ-02 - A1P Setting error for Y1E expansion valve........................................................................................ 34
3.2.19 C1-00 - Communication abnormality between main PCB and fan PCB ....................................................... 35
3.2.20 C4-00 - Liquid thermistor abnormality.......................................................................................................... 36
3.2.21 C5-00 - Gas thermistor abnormality.............................................................................................................. 36
3.2.22 C6-01-11-21-31 - Compatibility error between main PCB and fan PCB....................................................... 37
3.2.23 C6-02-12-22-32 - Setting error between main PCB and fan PCB ................................................................. 37
3.2.24 C6-05-15-25-35 - Fan PCB EEPROM error..................................................................................................... 38
3.2.25 C6-06-16-26-36 - Fan PCB fin thermistor malfunction ................................................................................. 39
3.2.26 C6-07-17-27-37 - Fan PCB fin thermistor abnormality ................................................................................. 40
3.2.27 C9-00 - Air thermistor abnormality ............................................................................................................... 40
3.2.28 CA-00 - Discharge thermistor abnormality ................................................................................................... 41
3.2.29 CH-00 - CO2 sensor alarm ............................................................................................................................. 41
3.2.30 CH-01 - R32 leak detection sensor failure or disconnected ......................................................................... 42
3.2.31 CH-02 - R32 leak detection sensor life time is exceeded.............................................................................. 43
3.2.32 CH-05 - R32 leak detection sensor life time <6 months ............................................................................... 43
3.2.33 CH-10 - R32 leak detection sensor replacement to confirm ........................................................................ 44
3.2.34 CJ-00 - Remote controller air thermistor abnormality ................................................................................. 45
3.2.35 U5-04 - Communication abnormality between indoor unit main PCB and remote controller ................... 45
3.2.36 U5-06 - Supervisor remote controller not connected/not set ..................................................................... 47
3.2.37 U8-00 - Transmission error between Master and Slave remote controller................................................. 47
3.2.38 U9-01 - Other indoor unit has error.............................................................................................................. 48
3.2.39 U9-02 - Other indoor unit has error.............................................................................................................. 48
3.2.40 UA-00 - Wrong remote controller................................................................................................................. 49
3.2.41 UC-00 - Central address duplication error .................................................................................................... 49
3.2.42 UE-00 - Communication abnormality with central controller ...................................................................... 50
3.2.43 UJ-34 - Capacity mismatch between VAM and DX module.......................................................................... 50
3.2.44 UJ-35 - Abnormality at VAM unit .................................................................................................................. 51
3.2.45 UJ-36 - Transmission error between VAM and EKVDX ................................................................................. 51
3.2.46 UJ-37 - VAM unit has A6-28 error ................................................................................................................. 51
3.2.47 UJ-38 - VAM unit has A6-29 error ................................................................................................................. 52
3.2.48 60-00 - External protection device activated................................................................................................ 52
3.2.49 64-01 - Indoor air thermistor malfunction.................................................................................................... 53
3.2.50 64-02 - Indoor air thermistor out of range ................................................................................................... 53
3.2.51 65-01 - Outdoor air thermistor malfunction................................................................................................. 54
3.2.52 65-02 - Outdoor air thermistor out of range ................................................................................................ 54
VAM350~2000J8VEB + EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 - 2022.02
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