Haier 1U15AP2VHA - Error Codes and Problem Solving

ERROR CODES & PROBLEM SOLVING
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Error Codes & Problem Solving
Table of Contents
Error Codes and Description Indoor Display ..................................................................................................................... 30
Indoor Unit Display ......................................................................................................................................................................... 30
Indoor AC Fan Motor Malfunction ..................................................................................................................................... 31
Indoor Unit Display ......................................................................................................................................................................... 31
E14 ............................................................................................................................................................................ 31
Outdoor DC Fan Motor Fault ............................................................................................................................................. 32
OutdoorUnitDisplay ..................................................................................................................................................................... 32
LED1 Flashes 9 Times .............................................................................................................................................. 32
IPM Protection ................................................................................................................................................................ 33
OutdoorUnitDisplay ..................................................................................................................................................................... 33
LED1 Flashes 2 Times .............................................................................................................................................. 33
Over-current of the Compressor ...................................................................................................................................... 33
OutdoorUnitDisplay ..................................................................................................................................................................... 33
LED1 Flashes 3 or 24 or 25 Times ........................................................................................................................... 33
The Communication Fault Between IPM and Outdoor PCB ................................................................................................ 34
OutdoorUnitDisplay ..................................................................................................................................................................... 34
LED1 Flash 4 Times .................................................................................................................................................. 34
Power Supply Too High or Too Low ................................................................................................................................... 35
OutdoorUnitDisplay ..................................................................................................................................................................... 35
LED1 Flashes 6 Times .............................................................................................................................................. 35
Overheat Protection for Discharge Temperature .............................................................................................................. 36
OutdoorUnitDisplay ..................................................................................................................................................................... 36
LED1 Flashes 8 Times .............................................................................................................................................. 36
Communication Fault Between Indoor and Outdoor Units ................................................................................................ 36
Indoor Unit Display ......................................................................................................................................................................... 36
E7 .............................................................................................................................................................................. 36
 OutdoorUnitDisplay .....................................................................................................................................................................36
LED1 Flashes 15 Times ............................................................................................................................................ 36
Loss of Synchronism Detection ........................................................................................................................................ 37
OutdoorUnitDisplay ..................................................................................................................................................................... 37
LED1 Flashes 18 or 19 Times .................................................................................................................................. 37
Indoor Unit Overload in Heating Mode .............................................................................................................................. 37
OutdoorUnitDisplay ..................................................................................................................................................................... 37
LED1 Flashes 18 Times ............................................................................................................................................ 37
Checking System Components ........................................................................................................................................ 38
Checking Outdoor Unit Components ............................................................................................................................... 38
CheckingtheOutdoorUnitSensors ............................................................................................................................................. 38
 CheckingtheReversingValveCoil ................................................................................................................................................ 38
 CheckingtheDCFanMotor ........................................................................................................................................................... 38
 CheckingtheEEVStepperMotor .................................................................................................................................................. 38
 CheckingthePFCReactor ............................................................................................................................................................. 38
 CheckingtheSocketProtectComponent ....................................................................................................................................39
 CheckingtheCompressorWindings ............................................................................................................................................. 39
 CheckingtheElectricalBasePanHeater ......................................................................................................................................39
Checking Indoor Unit Components ................................................................................................................................... 39
CheckingtheIndoorUnitSensors ................................................................................................................................................. 39
 CheckingtheUp/DownorLeftStepperMotor ............................................................................................................................ 40
 CheckingtheIndoorDCFanMotor ............................................................................................................................................... 40
Optimizing Performance .................................................................................................................................................. 40
Cleaning the Front Cover .................................................................................................................................................. 40
Troubleshooting Tips ....................................................................................................................................................... 41