Indoor Unit Fan Motor Abnormality - Daikin VRV-WIII RWEYQ72PTJU Service Manual

Troubleshooting by Indication on the Remote Controller

Indoor Unit Fan Motor Abnormality

A6
Error Code
Applicable
FXDQ
Models
Method of Error This error is detected if there is no revolutions detection signal output from the fan motor.
Detection
Error Decision
When no revolutions can be detected even at the maximum output voltage to the fan
Conditions
 Defective indoor fan motor
Supposed
 Broken wires
Causes
 Defective contact
Troubleshooting
158
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Is
the X4A
NO
connector securely
connected?
YES
Is
the
power of
approx. 12VDC
supplied between
the Pins1 and 3 when
YES
the X4A is
disconnected and
the power
supply turns
ON?
NO
SiUS30-1301
Properly connect the
connectors.
(At this time, check for any
defective connector contact or
broken wires.)
Check the indoor unit fan motor
and the wiring circuits of the
motor.
Replace the indoor unit PCB.
Service Diagnosis