Error Codes And Description Indoor Display - Haier HSU-22LEA03 Service 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,
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
E4 Indoor EEPROM error: Replace the PCB of indoor unit
E14 :Indoor fan motor malfunction
Notes:
When the unit is on ,don't pull out or insert the terminal of the motor (CN601), or else
The motor would be damaged.
HSU-22L/HEA03
Code indication
indoor
E1 Room temperature sensor failure
E2 Heat-exchange sensor failure
E4 Indoor EEPROM error
E14 Indoor fan motor malfunction
CN604
CN604
Description
or else parts damage may be
YES
Sensor is broken,replace it with new sensor
48
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Codes and description
Reference
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Domestic air conditioner