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TROUBLESHOOTING AND SELF DIAGNOSIS
electriQ air conditioners have an advanced self-diagnosis system allowing them to display
the service information
Indoor unit error code list
Check
Description
Display
Code
(unit &
remote)
Unit Display Status
Display LED (light flashing)
Indoor
parts
Three-phase power phase
sequence fault
E0
Indoor and out unit
communication failure
E1
Timing lights flash
Temperature sensor (T1)
fault
E2
Running lights flash
Pipe temperature sensor in
the evaporator (T2) fault
E3
Running lights flash
Pipe temperature sensor in
the evaporator (T2B) fault
E4
Running lights flash
Outdoor unit failure
E5
Warning lights flash slowly
The indoor unit EEPROM
fault
E7
Defrost lights flash slowly
Water over protection
EE
Warning lights flash
Indoor Unit with line
controller communication
failure
E9