Indoor Manual Auto Switch Error - Fujitsu ASYA07LBCM Service Manual

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