Haier HSU18VCK, Service Manual

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HSU24VCK-SM
Codes and Description
DomesticAirConditioner
30
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 (CN1), or else
The motor would be damaged.
NO
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?
YES
Sensor is broken,replace it with new sensor
The indoor PCB is broken, replace with new indoor PCB
NO
YES
whether terminal CN8 on
indoor PCB contact well?
Pull out the terminals on the indoor mainboard and
reinsert them