LG PRCKD42E Owner's Manual page 128

APPENDIX
128
List of GHP Error Codes
Error Code
Indoor unit air temperature sensor defect
CH1x001
Sensor Open/Short
Indoor unit pipe inlet temperature sensor defect
CH1x002
Sensor Open/Short
Wired remote controller and indoor unit communication defect
CH1x003
Wired remote controller did not receive indoor unit communication signal
Indoor unit drain defect
CH1x004
Drain Pump/Float Switch defect
Outdoor unit/indoor unit communication defect
CH1x005
Indoor unit did not receive outdoor unit communication signal continuously for 5 minutes or longer
Indoor unit pipe outlet temperature sensor defect
CH1x006
Sensor Open/Short
Different operation
CH1x007
Fan Hall sensor Short/Open
Indoor unit EEPROM Access defect
CH1x009
Micom and EEPROM communication defect
Indoor unit BLDC motor Feedback signal defect
CH1x010
Motor Feedback signal not received
Indoor unit/outdoor unit communication defect
CH1x011
Indoor unit did not receive its address calling signal for certain period of time
Outdoor unit high pressure switch activation
CH1x024
If External PCB high pressure switch open signal is received by Main PCB during the compressor operation
Input voltage high voltage/low voltage
CH1x025
Decision of high/low of driver input voltage from fan driver
Inverter compressor 1 outlet temperature excessive rise
CH1x032
After 3 min. after Comp start, 115℃ or more is maintained for 10 seconds
High pressure excessive rise
- cooling: at 1 level minimum ET_RPM, high pressure exceeding 3800Kpa is maintained for 10 seconds
CH1x034
- heating: at 1 level minimum ET_RPM, high pressure exceeding 3546kPa is maintained for 10 seconds
When it exceeds high pressure 3900kPa, immediately. (Same as cooling/heating)
Low pressure excessive drop
CH1x035
- cooling/heating same: 210kPa or less is maintained for 60 seconds
Low compression ratio error
- 5 min. after compressor start
- 1) 900 ≤ EC_RPM ≤ 1500 and compression ratio < 1.2, 2) 1500 < EC_RPM and compression ratio <1.5,1)
CH1x036
or satisfying 2)condition for 3 minutes
- 2 min. after compressor start
- 1) 900 ≤ EC_RPM ≤ 1500 and compression ratio < 1.1, 2) 1500 < EC_RPM and compression ratio <1.31)
or if 2) is satisfied, immediately
Error Type
Conditions for Cause