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Troubleshooting
Si04-402A
74
Service Diagnosis
4.2
Indoor Unit PCB Abnormality
Remote
Controller
Display
A1
Method of
Malfunction
Detection
Evaluation of zero-cross detection of power supply by indoor unit.
Malfunction
Decision
Conditions
When there is no zero-cross detection in approximately 10 continuous seconds.
Supposed
Causes
Faulty indoor unit PCB
Faulty connector connection
Faulty terminal strip of indoor unit
Troubleshooting
Note:
Connector Nos. vary depending on models.
Connector connection check
(note).
YES
Is it normal?
NO
Correct connections.
Replace PCBs.
(R1400)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Model Type
Connector No.
Wall Mounted Type 25 / 35 class
Terminal strip
~
Control PCB (indoor unit)
Содержание ARXG25CVMB
Страница 1: ...Inverter Pair Wall Mounted Type C Series Applied Models z z z zInverter Pair Heat Pump Si04 402A ...
Страница 23: ...Printed Circuit Board Connector Wiring Diagram Si04 402A 14 Printed Circuit Board Connector Wiring Diagram ...
Страница 167: ...Outdoor Unit Si04 402A 158 Removal Procedure When reassembling make sure to fit the hook Step Procedure Points ...
Страница 181: ...Outdoor Unit Si04 402A 172 Removal Procedure ...
Страница 185: ...Others Si04 402A 176 Others ...
Страница 189: ...Wiring Diagrams Si04 402A 180 Appendix ...