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SiUS39-602
Troubleshooting by Indication on the Remote Controller
Troubleshooting
153
2.22
“
H7
”
Abnormal Outdoor Fan Motor Signal
Remote Controller
Display
H7
Applicable Models
REYQ72M, 96M
Method of
Malfunction
Detection
Detection of abnormal signal from fan motor.
Malfunction
Decision
Conditions
In case of detection of abnormal signal at starting fan motor.
Supposed
Causes
Abnormal fan motor signal (circuit malfunction)
Broken, short or disconnection connector of fan motor connection cable
Fan Inverter PC board malfunction
Troubleshooting
★
1: Disconnect connector (X2A) and measure the following resistance.
(V3069)
Turn power off.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the fan
motor connector
X2A connected to PC board
for Fan inverter
correctly?
The
resistance of
fan motor read wire
connector pins between
Vcc-UVW and
GND-UVW
balanced?
Replace fan motor.
Replace fan inverter PC Board.
(A3P)
YES
NO
Connect correctly.
NO
YES
X2A
GND
(V2799)
Measure the
resistance
between Vcc-
UVW and
GND-UVW.
5 Gray
Vcc
W
V
U
4 Pink
3 Orange
2 Blue
1 Yellow
Summary of Contents for REYQ72
Page 35: ...Specifications SiUS39 602 24 Specifications...
Page 121: ...Field Setting SiUS39 602 110 Test Operation...
Page 129: ...Troubleshooting by Remote Controller SiUS39 602 118 Troubleshooting...
Page 225: ...Troubleshooting OP Unified ON OFF Controller SiUS39 602 214 Troubleshooting...
Page 232: ...SiUS39 602 Piping Diagrams Appendix 221 1 3 BS Unit BSVQ36MVJU BSVQ60MVJU 4D045338...
Page 235: ...Wiring Diagrams for Reference SiUS39 602 224 Appendix REYQ144 168 192MTJU C 3D050354A...
Page 240: ...SiUS39 602 Wiring Diagrams for Reference Appendix 229 2 4 BS Unit BSVQ36M 60MVJU 3D045069A...
Page 249: ...Example of Connection R 410A Type SiUS39 602 238 Appendix...
Page 255: ...Method of Replacing The Inverter s Power Transistors and Diode Modules SiUS39 602 244 Appendix...
Page 265: ...Precautions for New Refrigerant R 410A SiUS39 602 254 Precautions for New Refrigerant R 410A...
Page 269: ...SiUS39 602 iv Index...