Outdoor Unit: Inverter Compressor Motor Lock; E5" Outdoor Unit: Inverter Compressor Motor Lock - Daikin VRV III RXYQ5-54PY1 Service Manual

Troubleshooting by Indication on the Remote Controller
3.16 "E5"

Outdoor Unit: Inverter Compressor Motor Lock

E5
Remote
Controller
Display
Applicable RXYQ5P~54P
Models
Method of Inverter PC board 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
240
Inverter compressor lock
High differential pressure (0.5MPa or more)
Incorrect UVW wiring
Faulty inverter PC board
Stop valve is left in closed.
Si34-601A
Troubleshooting