Daikin VRVII - Page 64

Troubleshooting by Indication on the Remote Controller
59
NO
YES
Replace the fan
motor.
Turn ON the power.
Remove the signal
connector from the fan
motor and check the
resistance (∗2).
The
resistors
among U, V, and
W are unbalanced or
short-circuited.
YES
NO
Between
VCC and GND
terminals, and
between GND and HW,
HV, or HU terminals
are short-
circuited.
Replace the fan
motor.
A
Remove the power wire
connector from the fan
motor and measure the
resistance between U
and V, V and W, and W
and U phases (*1).
NO
YES
The
resistance
between the
power wire terminals
of the fan motor and
motor frame (meal
part) is 1 MΩ
or below.
Replace the fan
motor.
B