Refrigerant Circuit Address Set-Up Error - Fujitsu AU A36LCLU Series Service Instruction

Trouble shooting 28
INDOOR UNIT Error Method:
Refrigerant Circuit Address
Set-up Error
Detective Actuators:
Indoor Unit Controller PCB
Forecast of Cause :
1. Dip SW incorrect setting
Check Point 1 : Check the DIP-SW of Controller PCB setting
Check the DIP-SW of controller setting.
>> If there is an abnormal condition, correct it by referring to Installation Manual
or Data & Technical Manual.
>> Upon correcting incorrect setting, reset the power.
OK
Check Point 2 : Replace Controller PCB
If Check Point 1 do not improve the symptom, replace Controller PCB.
Indicate or Display:
Refer to error code table.
Detective details:
When the addresses set in indoor units are not consecutive
in the same refrigerant circuit.
2. Controller PCB failure
02-31