HAIER
AU242FHBIA AU482FIBIA AU48NFIBJA Air conditioner Error Blinking codes Circuit Diagram
Indoor
failure code
A. Wired control type indoor unit:
The dip switch of wired controller is 1 and 3 at ON, 2 and 4 at OFF.
A. Wired control type indoor unit:
The dip switch of wired controller is 1 and 3 at ON, 2 and 4 at OFF.
Failure
code Failure description
E0 Float switch abnormal
E1 Outdoor unit failure
E2 Abnormal mode operation
E3 Liquid pipe temperature sensor failure
E4 Gas pipe temperature sensor failure
E5 Repeated indoor unit number (E5 flashes for a while and then turn to E9)
E7 Communication abnormal with EEV box
E8 Communication abnormal between wired controller and indoor PCB
E9 Communication abnormal between indoor and outdoor
EB (pre-set, not available) Water temperature sensor abnormal.
E0 Float switch abnormal
E1 Outdoor unit failure
E2 Abnormal mode operation
E3 Liquid pipe temperature sensor failure
E4 Gas pipe temperature sensor failure
E5 Repeated indoor unit number (E5 flashes for a while and then turn to E9)
E7 Communication abnormal with EEV box
E8 Communication abnormal between wired controller and indoor PCB
E9 Communication abnormal between indoor and outdoor
EB (pre-set, not available) Water temperature sensor abnormal.
Infrared
control type indoor unit:
TIMER
lamp flash times Failure description
Once Liquid pipe temperature sensor failure
Once Liquid pipe temperature sensor failure
Twice
Gas pipe temperature sensor failure
3 times Ambient temperature sensor failure
4 times Communication abnormal between indoor and outdoor
5 times Communication abnormal with EEV box
10 times Indoor motor abnormal
11 times Float switch or pump motor abnormal
12 times Repeated indoor unit number
13 times Indoor over heat
Note: if indoor RUN lamp flashes, that shows outdoor abnormal, so no matter how many times it flashes, you should check outdoor indicator flash times and the relative failure code.
3 times Ambient temperature sensor failure
4 times Communication abnormal between indoor and outdoor
5 times Communication abnormal with EEV box
10 times Indoor motor abnormal
11 times Float switch or pump motor abnormal
12 times Repeated indoor unit number
13 times Indoor over heat
Note: if indoor RUN lamp flashes, that shows outdoor abnormal, so no matter how many times it flashes, you should check outdoor indicator flash times and the relative failure code.
AU242FH
Failure code Failure description
01 Outdoor defrosting temperature sensor TE circuit failure
02 Ambient temperature sensor TA circuit failure
03 Suction temperature sensor TS circuit failure
04 Discharging temperature sensor TD circuit failure
05 Outdoor mid-condenser temperature sensor failure
06 Over current abnormal
07 Current mutual inductor failure
09 IPM protection
10 EEPROM on PCB incorrect
11 Discharging temperature protection action
13 Pressure switch circuit abnormal
14 Pressure switch circuit abnormal
19 Discharging temperature protection action when in low frequency
20 Communication abnormal when chip 857 receives signal from chip 846
21 Compressor over current failure
22 Communication abnormal when chip 846 receives signal from indoor unit
23 Chip 846 EEPROM Indoor failure code
01 Outdoor defrosting temperature sensor TE circuit failure
02 Ambient temperature sensor TA circuit failure
03 Suction temperature sensor TS circuit failure
04 Discharging temperature sensor TD circuit failure
05 Outdoor mid-condenser temperature sensor failure
06 Over current abnormal
07 Current mutual inductor failure
09 IPM protection
10 EEPROM on PCB incorrect
11 Discharging temperature protection action
13 Pressure switch circuit abnormal
14 Pressure switch circuit abnormal
19 Discharging temperature protection action when in low frequency
20 Communication abnormal when chip 857 receives signal from chip 846
21 Compressor over current failure
22 Communication abnormal when chip 846 receives signal from indoor unit
23 Chip 846 EEPROM Indoor failure code
AU242FHBIA
PCB circuit diagram
AU482FHBIA
PCB circuit diagram
AU48NFIBJA
PCB circuit diagram
