Indoor Unit Pcb Abnormality - Daikin VRV RXYMQ-A Series Service Manual

SiME332106E

5.19 Indoor Unit PCB Abnormality

Applicable FXFSQ-AR
Models
C6-05
Error Code
Method of Error
This error is detected by checking the current sensor value.
Detection
Error Decision
When an abnormal signal is detected at the start of operation of the fan motor.
Conditions
Supposed  Disconnection of the connector of the fan motor lead wire
 Defective fan motor (Broken wires or defective insulation)
Causes
 Defective PCB (A1P)
Troubleshooting
Part 6 Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn OFF the power supply, and then
wait for a period of 10 minutes.
Is the fan
motor connector (X901A)
connected properly?
YES
Resistances
between UVW phases of
the fan motor are imbalanced, or
there is a short circuit
between UVW.
NO
NO
YES
Troubleshooting by Error Code
Properly connect the connector.
Replace the fan motor.
Replace the indoor unit PCB
(A1P).
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