Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 146

R-410a heat pump 50hz
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SiBE26-701
Troubleshooting
*1: The connector No. of fan motor is shown in the following table.
*2: Measurement of resistance and judgment criteria for the fan motor
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Turn power off.
Is the
connector of the fan
motor correctly connected?
(∗1)
YES
Check the connector of the
fan motor (X2A) (Refer to ∗2)
Is each
of the resistance
value normal in the above
connector check?
(∗2)
YES
Model
PC board
RZQ200 · 250C
A4P
(1) Turn off the power
(2) In the condition that the connector or the relay connector disconnected, measure the
resistance between Vcc - UVW and between GND- UVW of the connector on the motor
side (5 cores) to check if the resistance at each position is balanced. (within ± 20%)
5 Gray
4 Pink
3 Orange
2 Blue
1 Yellow
NO
NO
Symbol
M1F
X2A
GND
Vcc
W
V
U
Diagnosis by Remote Controller
Connect correctly.
Replace fan motor.
Replace fan inverter PC Board.
(A4P)
Connector
X1A / X2A
Measure the
resistance
between Vcc-
UVW and
GND-UVW.
(V2799)
(V3069)
135

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