SiUS371614E
Troubleshooting by Error Code
Service Diagnosis
218
3.32 Electronic Expansion Valve Coil Abnormality
Error Code
E9
Applicable
Models
All outdoor unit models
Method of Error
Detection
Detect according to whether or not there is continuity across the electronic expansion valve coils
(Y1E-Y5E).
Error Decision
Conditions
When no current flows through common (COM[+]) at the time of turning ON the power supply.
Supposed
Causes
Disconnection of connectors from electronic expansion valves
Defective electronic expansion valve coil
Defective outdoor unit main PCB
Troubleshooting
Note:
∗
1. Make measurement of resistance between individual pins to ensure that it falls within the range
of 40 to 50
Ω
.
Turn OFF the power supply
once, and then turn it ON again.
Return to normal?
Investigate external causes other than
failures (e.g. noise).
YES
NO
Connector
for the electronic
expansion valve of the
outdoor unit PCB (A1P)
is connected.
Properly and securely connect the
connector.
NO
YES
The
resistance of
the electronic
expansion valve coil is
normal. (
∗
1)
Replace the electronic expansion
valve.
NO
Replace the outdoor unit main PCB
(A1P).
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Check for electronic expansion valves applicable to the error code
E9
while in monitor mode.
Sub code
E09-01/05/08: Y1E
E09-03/06/09: Y2E
E09-04/07/10: Y3E
E09-26/27/28: Y4E
E09-29/34/39: Y5E
1
2
3
4
5
6
1 – 6
2 – 6
3 – 6
4 – 6
40-50
Ω
(White)
(Yellow)
(Orange)
(Blue)
(Red)
Measurement
Point
Acceptance
Criteria
Summary of Contents for REYQ-TA Series
Page 1: ...Service Manual SiUS371614E REYQ72 456TAYDU REYQ72 456TATJU Heat Recovery 60 Hz...
Page 304: ...Wiring Diagrams SiUS371614E 291 Appendix REYQ96 120TAYDU 2D106425A...
Page 305: ...SiUS371614E Wiring Diagrams Appendix 292 REYQ144 168TAYDU 2D106426A...
Page 306: ...Wiring Diagrams SiUS371614E 293 Appendix REYQ72TATJU 3D106421A...
Page 307: ...SiUS371614E Wiring Diagrams Appendix 294 REYQ96 120TATJU 2D106422A...
Page 308: ...Wiring Diagrams SiUS371614E 295 Appendix REYQ144 168TATJU 2D106423A...
Page 318: ...Wiring Diagrams SiUS371614E 305 Appendix VAM1200GVJU 3D073270C...
Page 320: ...Wiring Diagrams SiUS371614E 307 Appendix 1 4 2 Multi Branch Selector Unit BS4Q54TVJ 3D089123B...
Page 321: ...SiUS371614E Wiring Diagrams Appendix 308 BS6 8Q54TVJ 2D089122B...
Page 322: ...Wiring Diagrams SiUS371614E 309 Appendix BS10 12Q54TVJ 2D089121B...
Page 323: ...Revision History Month Year Version Revised contents 02 2017 SiUS371614E First edition...
