Trouble Shooting With Error Code - Fujitsu ARA12LATN Service Instruction

7-2 TROUBLE SHOOTING WITH ERROR CODE

Trouble shooting 1
INDOOR UNIT Error Method:
Communication Error
(Indoor unit Remote control)
Detective Actuators:
Indoor unit controller PCB circuit
Wired Remote Control
Forecast of Cause:
1. Terminal connection abnormal 2. Wired Remote Control failure 3. Controller PCB failure
Check Point 1 : Check the connection of terminal
After turning off the power, check & correct the followings.
Check the connection of terminal between remote control and Indoor unit,
and check if there is a disconnection of the cable.
OK OK
Check Point 2 : Check Remote Control and Controller PCB
Check Voltage at CN14 (terminal 1-3) of Controller PCB.
(Power supply to Remote Control)
>> If it is DC12V, Remote Control is failure. (Controller PCB is normal)
>> If it is DC 0V, Controller PCB is failure. (Check Remote Control once again) >> Replace Controller PCB
Upon correcting the removed connector or mis-wiring, reset the power.
Indicate or Display:
Outdoor Unit : No indication
ERROR CODE : E : 00
Detective details:
When the indoor unit cannot receive the signal from Wired Remote
more than 10seconds after power ON, or the indoor unit cannot receive
the signal more than 1minute during normal operation.
07-04
>> Replace Remote Control