SiUS181631EA Troubleshooting for Outdoor Unit
Troubleshooting 233
7.6 Moving Part of Electronic Expansion Valve (Y1E, Y3E)
Abnormality
Error Code
E9
Method of Error
Detection
System checks if the connector is disconnected, and the detection is based on the continuity of
electronic expansion valve coil.
Error Decision
Conditions
No current is detected in the common (COM +) when power supply is ON.
Supposed
Causes
îš„
Disconnection of connectors for electronic expansion valve Y1E or Y3E
îš„
Defective moving part of electronic expansion valve
îš„
Defective main PCB (A1P)
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