Detective Actuators: Detective details:
Forecast of Cause:
Check Point 3 : Replace Controller PCB
Check Point 2 :
Check connections condition in control unit
YESYES
NO
Trouble shooting 8
INDOOR UNIT Error Method:
Indicate or Display:
Indoor unit PCB model information error
Indoor unit Controller PCB
1. External cause 2. Defective for connection in controller unit 3. Controller PCB failure
Check Point 1-1 : Reset power supply and operate
Does error indication show reappear?
Check all connectors.
(loose connector or incorrect wiring)
Check any shortage or corrosion on PCB.
If Check Point 1, 2 do not improve the symptom,
replace Controller PCB.
When power is on and there is some below case.
1. When model information of EEPROM is incorrect
2. When the access to EEPROM failed
02-10
Refer to error code table.
Check Point 1-2 : Check external cause such as noise
Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
OK
To Next Page
Loading...
