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Daikin VRV III-S RXYMQ36 48PVJU Service Manual Page 127

60 hz.
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Troubleshooting by Indication on the Remote Controller
U, V, and W are unbalanced or
Remove the signal connector from the
fan motor and check the resistance (*2).
V
and between GND and H
Turn on the power.
unit PCB (A1P) blinks and the
*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 five conductors) and check that each phase is 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
the motor connector (with five conductors).
118
A
The
resistors among
short-circuited.
YES
Between
and GND terminals,
CC
,
W
H
, or H
terminals are
V
U
short-circuited.
NO
The HAP
lamp of the indoor
HAP lamp of the fan
PCB (A2P) is off.
NO
Connector power wire use (X1A)
5 Red
U
4
3 White
V
2
1 Black
W
NO
YES
YES
Connector signal wire use (X2A)
5 Gray
4 Pink
3 Orange
2 Blue
1 Yellow
Replace the fan motor.
Replace the fan motor.
Replace the fan PCB (A2P).
Replace the fan motor.
, H
, H
, or H
CC
W
V
GND
Vcc
Hw
H
V
H
U
SiUS34-907
terminals of
U
Troubleshooting

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  • cp shukla Feb 16, 2016 06:50:
    RXYQ18PAY6 service manual & vrv Fulform