Electriq AC Error Codes and Troubleshooting

 Wall Mounted Inverter Multi Split Air Conditioner with Heat Pump. Model: eiQ-9K9KC18KWMINV

ElectriQ air conditioners have an advanced self-diagnosis system allowing them to display the service information.

Protection and Fault Codes for Indoor Unit Board;

Error Codes	Meaning
F0	Abnormal zero passage of PG motor
F1	Abnormal communication between indoor unit and outdoor unit
F2	Open circuit or short circuit of Tr sensor
F3	Open circuit or short circuit of Tp sensor
F4	Malfunction of indoor fan
E9	Open circuit or short circuit of PM 2.5 sensor
F5	Malfunction of outdoor module
F6	Open circuit or short circuit of outdoor temp sensor
F7	Open circuit or short circuit of outdoor coil temp sensor
F8	Open circuit or short circuit of compressorsuction temp sensor
F9	Open circuit or short circuit of compressorextraction temp sensor
FA	Malfunction of current and potential transformer
FC	Malfunction of compressor drive
FD	Power phase sequence fault or open phase fault
FE	Open circuit or short circuit of air return sensor
FH	Malfunction of outdoor DC fan
Fb	Multi-split mode conflict protection

Outdoor Board Fault Codes

Electriq AC Error Codes

Error Codes	Meaning
EEA	EEPROM fault
EEB	EEPROM fault
E0	Fault of communication between coordination board and driver board
EC	Fault of communication between variable frequency module and outdoor unit
E0A	1# indoor communication fault
E0B	2# indoor communication fault
E0C	3# indoor communication fault
E0D	4# indoor communication fault
E0E	5# indoor communication fault
E10	Weak current communication fault
E9	Variable frequency drive/module fault
EP	Compressor shell roof switch fault
EU	Voltage sensor fault
E3	T3 temperature sensor fault
E7	T4 temperature sensor fault
E8	Exhaust temperature sensor fault
EH	Air return temperature sensor fault
EtA	1#T2B1 temperature sensor fault
EtB	2#T2B2 temperature sensor fault
EtC	3#T2B3 temperature sensor fault
EtD	4#T2B4 temperature sensor fault
EtE	5#T2B5 temperature sensor fault
P0	IPM module protection
P9	Compressor drive fault protection
P9	HP dial setting fault
P1	Low-voltage protection
P2	Compressor current protection
P4	Exhaust gas high temperature protection
H1	High-voltage switch protection
H2	Low-voltage switch protection
P6	Refrigerator T3 overheat protection

Troubleshooting

Electriq AC Remote Control

Trouble: The unit does not work

Reason:

1. No power supply
2. Water-full indicator illuminated
3. Timer function is active
4. Room temperature too low or too high

Solution:

1. Power-on and turn on the unit
2. Drain the internal water tank
3. Cancel Timer function
4. Use only in ambient temperatures between 7-35℃

Trouble: The unit does not seem to perform

Reason:

1. In direct sunlight
2. Windows or doors open. Large amount of people or a heat source in the room
3. Filter is very dirty
4. Air inlet or air outlet is blocked
5. Room temperature is lower than setting temperature

Solution:

1. Draw the curtains, UV affects RC
2. Close windows and turn on another air conditioner
3. Clean or change the air filter
4. Clear out debris
5. Change the setting temperature

Trouble: The unit loud

Reason: The unit is not put on flat surface

Solution: Put the unit on flat and hard surface

Trouble: Compressor does not work

Reason: Overheating protection is active

Solution:

1. Check venting.
2. Restart the unit after 5 minutes when compressor has cooled

Trouble: Remote control doesn’t work

Reason:

1. Operating distance is too far.
2. Control panel has not received the signal from remote control.
3. The batteries are flat

Solution:

1. Move remote control closer to the unit and make sure it aims at the air-outlet grille
2. Replace the batteries

Electriq AC Manual PDF