Si20-701_B Troubleshooting by Remote Controller
198
Remote Controller Display
E9
Applicable Models
RZ(Y), RZQ-C
Method of Error Detection
For RZ(Y)
The error detection function detects coil current to
determine open circuit and short circuit.
For RZQ-C
Check disconnection of connector
Check continuity of electronic expansion valve coil
Error Decision Conditions
For RZ(Y)
Error is generated under the following condition.
Coil current:
Open circuit < Normal < Short circuit
For RZQ-C
Error is generated under no common power supply when
the power is ON.
Supposed Causes
îš„ Defective electronic expansion valve
îš„ Open circuit in electronic expansion valve harness
îš„ Defective connection of electronic expansion valve
connector
îš„ Defective outdoor unit PCB
îš„ External factor (Noise, etc.)
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