SiBE37-701_B Troubleshooting by Indication on the Remote Controller
Troubleshooting 290
3.19
“
E5
”
Outdoor Unit: Inverter Compressor Motor Lock
Remote
Controller
Display
E5
Applicable
Models
REYQ8P~48P
Method of
Malfunction
Detection
Inverter PCB takes the position signal from UVW line connected between the inverter and
compressor, and the malfunction is detected when any abnormality is observed in the phase-
current waveform.
Malfunction
Decision
Conditions
This malfunction will be output when the inverter compressor motor does not start up even in
forced startup mode.
Supposed
Causes
Inverter compressor lock
High differential pressure (0.5MPa or more)
Incorrect UVW wiring
Faulty inverter PCB
Stop valve is left in closed.
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