Daikin VRVII Manual page 134

Troubleshooting by Indication on the Remote Controller
A
Is the
LED (HAP)
on fan inverter PCB
blinking?
YES
CHECK 16
Check on connector of
fan motor (Power supply
cable)
Are the
resistance
values between
phases of U, V, W
balanced? Is there any
short circuiting
between phases
of U, V, W?
YES
CHECK 17
Check on connector of fan
motor (Signal wire)
Is the
resistance
value between Vcc
and UVW, and GND
and UVW
balanced?
YES
CHECK 16
CHECK 17
NO
NO
NO
Refer to P.378.
Refer to P.379.
Replace the fan
inverter PCB.
Replace the fan
motor of outdoor
unit.
Replace the fan
motor of outdoor
unit.
Replace the fan
inverter PCB.
129