02-23
Trouble shooting 20
INDOOR UNIT
INDOOR UNIT Error Method:
Indicate or Display:
Detective Actuators:
Detective details:
Forecast of Cause :
OKOK
Manual auto switch error
Indoor Unit Controller PCB Circuit
Manual auto switch
When the Manual auto switch becomes ON for 60 consecutive seconds.
1. Manual auto switch failure 2.Controller PCB failure
Check Point 1 : Check the Manual auto switch
Check if Manual auto switch is kept pressed.
Check Point 2 : Replace Controller PCB
If Check Point 1 do not improve the symptom, change Controller PCB.
Check ON/OFF switching operation by using a meter.
>>If Manual auto switch is detective, replace it.
Refer to error code table.
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