ElectrIQ iQool9PLUS-V2 - Error Codes and Fault Diagnosis

TROUBLESHOOTING AND SELF DIAGNOSIS
38
ERROR SIGNALS ON THE DISPLAY
In case of error, the display on the indoor unit shown the following error codes:
ERROR CODE
FAILURE TYPE
EE
Indoor unit EEPROM fault
F0
Indoor fan motor fault
E1
Indoor PCB Zero crossing fault
F3
Indoor coil sensor fault
F1
Indoor room temperature sensor fault
F6
Indoor and outdoor communication fault
EF
Outdoor unit EEPROM fault
E4
Compressor starting abnormal (Phase failure reverse)
E3
Compressor out of step fault
F9
IPM module fault intelligent power module
F5
Exhaust temperature sensor fault
F4
Outdoor coil temperature sensor fault
F2
Outdoor ambient temperature sensor fault
E2
Outdoor DC fan motor fault
Protection Display Code List
PE
Heating outdoor ambient temperature over-high protection
P4
Heating indoor coil overheat protection
P5
Cooling indoor coil anti-freezing protection
P9
IPM over-high temperature protection
P7
Outdoor unit over-high/over-low AC voltage protection