C1" Indoor Unit: Failure Of Transmission; (Between Indoor Unit Pc Board And Fan Pc Board) - Daikin RXYSQ4-5-6PA7V1B Service Manual

Troubleshooting by Indication on the Remote Controller
C1
3.10 " " Indoor Unit: Failure of Transmission (Between
Indoor unit PC Board and Fan PC Board)
C1
Remote
Controller
Display
Applicable FXMQ40~125P
Models
Method of Check the condition of transmission between indoor PC board (A1P) and PC board for fan
(A2P) using computer.
Malfunction
Detecion
Malfunction When normal transmission is not conducted for certain duration.
Decision
Conditions
Supposed
Causes
154
Connection defect of the connecter between indoor PC board (A1P) and PC board for fan
(A2P).
Malfunction of indoor PC board (A1P).
Malfunction of PC board for fan (A2P).
External factor, such as instantaneous blackout.
SiBE34-802
Troubleshooting