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.
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Be sure to turn off power switch before connect or disconnect connector, or else parts damage may
be occurred.
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 dama
ed or not?
YES
Sensor is broken,replace it with new sensor
The indoor PCB is broken, replace with new indoor PCB
HSU-18,22HEA03/R2 Service Diagnosis
67
Domestic Air Conditioner
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