Trouble shooting 25
INDOOR UNIT
INDOOR UNIT Error Method:
Indicate or Display:
Refer to error code table.
Detective Actuators:
Detective details:
Forecast of Cause :
OKOK
Manual auto switch error
Indoor Unit Control PCB Circuit (AS)
Main PCB Circuit (AU)
Display PCB (AU)
Manual auto switch
When the manual auto switch becomes ON for 60 consecutive seconds.(AS)
1. Forced auto switch failure 2.Controller PCB failure
Check Point 1 : Check the Forced auto switch
Check if Forced auto switch is kept pressed.
02-31
Check Point 2 : Replace Controller PCB
If Check Point 1 do not improve the symptom, change Control PCB. (AS)
Check ON/OFF switching operation by using a meter.
>>If Forced auto switch is detective, replace it.
30 consecutive seconds.(AU)
change Control PCB. (AU)
change Display PCB. (AU)
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