Daikin VRVII Manual page 61

Troubleshooting
Caution
Is the connector
securely
connected?
Is
the
power of
approx. 12VDC
supplied between
the Pins1 and 3 when
the connector is
disconnected and
the power
supply turns
ON?
56
Troubleshooting by Indication on the Remote Controller
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
YES
NO
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 fan
motor.
Replace the
indoor unit PCB.