OKOK
External communication error
Check any loose or removed connection of between the controller PCB
>>If there is an abnormal condition, correct it by refer to installation manual or
the technical manual.
Check the condition condtion on the controller PCB
(If there is loose connector, open cable or miss-wiring)
After receiving a signal from the same a signal
has not been received for 15sec
1. Connection failure 2.Controller PCB failure
Check Point 1 : Check the connection
Check Point 2: Replace external I/O PCB
If Check Point 1 do not improve the symptom.
OKOK
Check Point 3: Replace Controller PCB
If Check Point 2 do not improve the symptom, change Controller PCB.
Trouble shooting 4
INDOOR UNIT Error Method:
External Communication Error
Detective Actuators:
For AR*G**LSLAP
Detective details:
Forecast of Cause:
02-19
Indicate or Display:
Outdoor Unit : No indication
Indoor Unit : Operation lamp: 1 time Flash, Timer lamp: 8 time Flash
Economy lamp : Continuous flash.
ERROR CODE : [E : 18]
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