GE ASH220NCDW User Manual

TROUBLESHOOTING & REFERENCES
I-1
ENGLISH
TROUBLESHOOTING & REFERENCES
Table of Contents
Special Functions ....................................................................................................................................................................I-3
Auto Restart ...........................................................................................................................................................................I-3
Forced Defrost .......................................................................................................................................................................I-3
Indoor Temperature Display (Highwall Only) ........................................................................................................................ I-3
Enhanced Defrost ..................................................................................................................................................................I-3
Temperature Compensation ................................................................................................................................................. I-4
Matching Tables ......................................................................................................................................................................I-6
Resistance Chart / Sensor Denitions .....................................................................................................................................I-7
Resistance Values ...................................................................................................................................................................I-8
Louver Motors ........................................................................................................................................................................I-8
EEV .........................................................................................................................................................................................I-8
Component Ratings ................................................................................................................................................................I-9
4-Way Valve ...........................................................................................................................................................................I-9
Basepan Heater .....................................................................................................................................................................I-9
Fan Motors .............................................................................................................................................................................I-9
Refrigeration Diagrams ........................................................................................................................................................I-10
Master Error Code Chart .......................................................................................................................................................I-12
Outdoor Unit Error Codes .....................................................................................................................................................I-16
Temperature Sensor Error Codes .......................................................................................................................................I-16
Pressure-Related Error Codes ............................................................................................................................................I-17
Communication Error Code ................................................................................................................................................I-17
Error Codes Caused by Abnormal Refrigerant Circuit Conditions ....................................................................................I-18
Outdoor Error Code Related to Indoor Unit .......................................................................................................................I-18
Error Code Related to the PCB ............................................................................................................................................I-18
Error Codes Related to the IPM ...........................................................................................................................................I-18
Error Codes Related to Compressor, Outdoor Fan & 4-Way Valve ...................................................................................I-19
Flow Charts ...........................................................................................................................................................................I-20
[1] Outdoor EEPROM Malfunction ......................................................................................................................................I-20
[2] Outdoor IPM over current or short circuit ....................................................................................................................I-20
[4] Communication abnormal between PCB and IPM ........................................................................................................I-21
[6] DC voltage or AC voltage high.......................................................................................................................................I-21
[8] Discharge temperature too high protection .................................................................................................................I-22
[9] DC fan motor fault ..........................................................................................................................................................I-22
[10] Outdoor defrosting temp. sensor Te abnormal .........................................................................................................I-23
[11] Suction temp.sensor Ts abnormal...............................................................................................................................I-23
[12] Outdoor ambient temp. sensor Ta abnormal .............................................................................................................I-23
[13] Discharging temp. sensor Td abnormal ......................................................................................................................I-23
[15] Communication abnormal between indoor unit and outdoor unit ............................................................................I-23
[16] Lack of refrigerant or discharging pipe blocked .........................................................................................................I-24
[17] 4-way valve reversing failure .......................................................................................................................................I-24
[18] Compressor motor desynchronizing ..........................................................................................................................I-25
[24] Compressor startup failure .........................................................................................................................................I-25
[25] Input overcurrent of the drive module ........................................................................................................................I-25
[42] Open high pressure switch ..........................................................................................................................................I-26
[43] Open low pressure switch ............................................................................................................................................I-26
[44] High pressure detected in system ..............................................................................................................................I-27
[45] Low pressure detected in system ...............................................................................................................................I-27

GE ASH220NCDW Specifications

General

Brand	GE
Model	ASH220NCDW
Category	Heat Pump
Language	English