Trouble shooting 3
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause:
Check Point 1-2 : Check Wired Remote Controller and Controller PCB
Check Point 1 : Check the connection of terminal
OK
Wired Remote Controller
Communication Error
Indoor unit Controller PCB
Wired Remote Controller
1. Connection failure 2. Wired Remote Controller failure 3. Controller PCB failure
Check & correct the followings.
Check the connection of terminal berween Wired Remote Controller and indoor unit,
and check if there is a disconnection of the cable.
After turning off the power,
When the indoor unit cannot properly receive the signal from
Wired Remote Controller for 1 minute or more.
>> If it is DC13V, Remote Control is failure. (Controller PCB is normal) >> Replace Remote Control
>> If it is DC 0V, Controller PCB is failure. (Check Remote Control once again) >> Replace Controller PCB
Ceck Voltage at CN14 of Controller PCB. (Terminal 1-3, Terminal 1-2)
(Power supply for the Remote Control)
Indicate or Display:
Error code : 12
02-04
Check Point 2-1 : Check Indoor unit controller PCB
The number of connecting indoor unit and Remote controller in one RCgroup were less than 32 units.
Check Point 2 : Wire installation Wrong RCgroup setting
Wrong wire connection in RCgroup (Please refer to the installation manual)
Change controller PCB and check the Error after setting remote controller address
Check if controller PCB damage
Outdoor unit : No indication
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