Troubleshooting by Remote Controller Si20-701_B
207
Remote Controller Display
E9
Applicable Models
RZQ-H, RZQ(S)-C
Method of Error Detection
The error is detected by the suction pipe superheated
degree and electronic expansion valve opening degree
calculated by values of suction pipe thermistor.
Error Decision Conditions
When the following conditions are met for 10 minutes
 Suction pipe superheated degree < 4°C
îš„ Minimum electronic expansion valve opening degree
îš„ Connector of electronic expansion valve is missing
when the power is ON.
Supposed Causes
îš„ Defective electronic expansion valve
îš„ Defective solenoid valve
îš„ Defective check valve
îš„ Disconnection of electronic expansion valve harness
îš„ Defective connection of electronic expansion valve
connector
îš„ Defective each thermistor
îš„ Defective mounting
îš„ Defective outdoor unit control PCB
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