Daikin GQI-Eco Series, Service Manual

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Troubleshooting by Remote Controller ESIE15-13B
144 Service Diagnosis
4.16 Compressor Motor Lock
Remote
Controller
Display
E5
Applicable
Models
RZQG
Method of Error
Detection
Detect the motor lock when the compressor is energized.
Error Decision
Conditions
If the motor rotor does not rotate when the compressor is energized.
Supposed
Causes

Compressor lock
 High differential pressure (2.6 MPa or more) starting
 Stop valve is not opened
Troubleshooting
Is the stop valve open?
NO
YES
Open the stop valve.
NO
YES
NO
Connect correctly.
YES
Remedy the cause.
YES
Replace the compressor.
Check the installation conditions.
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
Replace the compressor.
NO
Is the UVWN
wiring normal?
Check and see
whether compressor is
short-circuited
or ground.
Is high
differential pressure
starting? (2.6 MPa or
more)