Compressor Motor Lock - Daikin SkyAir RZF-A Series Service Manual

SiME281906E

5.17 Compressor Motor Lock

Applicable All outdoor unit models
Models
E5
Error code
Method of Error Detect the motor lock when the compressor is energized.
Detection
Error Decision
Motor rotor does not rotate when the compressor is energized.
Conditions
Supposed
 Compressor lock
Causes  High pressure (2.6 MPa or more) at starting
 Stop valve is not opened.
Troubleshooting
Part 6 Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Check the installation conditions.
Is the stop valve open?
YES
Check and see
whether compressor is
short-circuited or
ground.
NO
Is high pressure
higher than 2.6 MPa at
starting?
NO
Troubleshooting by Error Code
NO
Open the stop valve.
YES
Replace the compressor.
YES
Remedy the cause.
Replace the compressor.
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