Troubleshooting
SiBE811001EB
171
CONVENI-PACK
A
NO
YES
YES
NO
YES
NO
The resistors
among U, V, and W
are unbalanced or
short-circuited.
Remove the signal connector from the
fan motor and check the resistance
(
∗
2).
Between V
CC
and GND
terminals, and between
GND and H
W
, H
V
, or H
U
terminals are short-
circuited.
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.
Replace the fan motor.
Replace the fan motor.
Replace the fan PCB (A2P).
Replace the fan motor.
∗
1.Measurement of power wire connector.
Remove the X1A connector from the fan PCB (A2P) and measure the resistance between the U and V, V
and W, and W and U phases of the motor connector (with 5 conductors) and check that each phase are
balanced (within a permissible dispersion range of ±20%).
∗
2.Measurement of signal wire connector.
Remove the X2A connector and measure the resistance between GND and V
CC
, H
W
, H
V
, or H
U
terminals
of the motor connector (with 5 conductors).
Connector power wire use (X1A)
Connector signal wire use (X2A)
5 Red
4
2
3 White
1 Black
U
V
W
5 Gray
4 Pink
2 Blue
3 Orange
1 Yellow
GND
Vcc
H
V
Hw
H
U
