Compressor Motor Lock; E5" Compressor Motor Lock - Daikin VRV - WII Service Manual

SiUS30-604
2.16 "E5"

Compressor Motor Lock

E5
Remote
Controller
Display
Applicable RWEYQ60, 72, 84MTJU
Models
Method of Pick up the location signal using the inverter PCB from the UVWN line connected between the
inverter and the compressor and detect location signal pattern.
Malfunction
Detection
Malfunction In normal operation, location signal for a triple cycle of frequency applied, while in locked operation,
it is a double cycle, and they are detected.
Decision
(Retry twice/60 minutes)
Conditions
Supposed
Causes
Troubleshooting
Inverter compressor lock
High differential pressure (72.5psi or more)
Incorrect UVWN wire connection
Faulty inverter PCB
Stop valve left closed
Troubleshooting by Indication on the Remote Controller
177