Error Codes And Description Indoor Display - Haier HSU-12HEB03 - annexe 1 Manual

7.2. Error Codes and Description indoor display

Indoor Malfunction
The code indication that is listed above is the main fault
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or else parts damage may be
occurred.
E1: Room temperature sensor failure
E2: Heat-exchange sensor failure
Pull the sensor out of the mainboard
1) Measure the value of resistance Between its two
jumpers
2) Measure the temperature at the room temperature
sensing head.
Check the value of the
sensor to see whether the
sensor is damaged or not?
NO
The indoor PCB is broken, replace with new indoor PCB
Code indication
indoor
E1 Room temperature sensor failure
E2 Heat-exchange sensor failure
E4 Indoor EEPROM error
E14 Indoor fan motor malfunction
CN6
CN6
45
Description
YES
Sensor is broken,replace it with new sensor
Codes and description
Reference
Page
41
41
42
42