E5" Outdoor Unit: Inverter Compressor Motor Lock - Daikin RTSQ20PY1 Service Manual

SiBE31-801_C
E5
4.17 " " Outdoor Unit: Inverter Compressor Motor Lock
E5
Remote
Controller
Display
Applicable RTSQ8P~16P (Outdoor Unit), BTSQ20P (Function Unit)
Models
Method of 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-
Malfunction
current waveform.
Detection
Malfunction This malfunction will be output when the inverter compressor motor does not start up even in
forced startup mode.
Decision
Conditions
Supposed
Causes
Troubleshooting
Inverter compressor lock
High differential pressure (0.5MPa or more)
Incorrect UVW wiring
Faulty inverter PCB
Stop valve is left in closed.
Troubleshooting by Indication on the Remote Controller
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