Daikin VRV RXYMQ-A Series Service Manual page 175

SiME332106E
Reference
CHECK 16 Refer to page 285.
Reference
CHECK 17 Refer to page 287.
Part 6 Service Diagnosis
A
The resistance
among U, V, and W are unbalanced
or below 1 Ω.
NO
CHECK 17
Remove the signal connector
from the fan motor and check
the resistance.
Between
V and GND
CC
terminals, and between GND
and H , H , or H terminals
W V U
are below 1 Ω.
NO
Turn on the power.
The HAP
lamp of the indoor
unit PCB (A1P) blinks and the
HAP lamp of the fan PCB
(A2P) is off.
NO
YES
YES
YES
Troubleshooting by Error Code
Replace the indoor fan
motor (M1F).
Replace the indoor fan
motor (M1F).
Replace the fan PCB (A2P).
Replace the indoor fan
motor (M1F).
169