SiME281501E Troubleshooting by Remote ControllerService Diagnosis 1164.22 Electronic Expansion Valve AbnormalityError Code E9ApplicableModelsRZQMethod of ErrorDetection Detect errors based on check of continuity of the electronic expansion valve. Detect errors by suction pipe superheated degree, discharge pipe superheated degree andelectronic expansion valve opening degree.[Suction pipe superheated degree]Cooling: Suction pipe thermistor - low pressure sensor equivalent temperatureHeating: Suction pipe thermistor - heat exchanger distributor pipe thermistor[Discharge pipe superheated degree]Cooling: Discharge pipe thermistor - intermediate heat exchanger thermistorHeating: Discharge pipe thermistor - high pressure sensor equivalent temperatureError DecisionConditions No common power supply when the power is turned ON When the following conditions are establishedSuction pipe superheated degree 4°CDischarge pipe superheated degree 5°CElectronic expansion valve opening degree Minimum opening degreeSupposedCauses Defective electronic expansion valve Defective solenoid valve Disconnection of electronic expansion valve harness Defective connection of electronic expansion valve connector Defective each thermistor Defective of each thermistor mounting Defective pressure sensor Defective outdoor unit control PCB Wet operation
