Compressor Lock - Daikin CTXU25G2V1B Service Manual

SiBE12-908
2.18

Compressor Lock

E6
Remote
Controller Display
Outdoor Unit LED A5
Display
Method of Judging from current waveform generated when high-frequency voltage is applied to the
compressor.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
Check No.14
Turn off the power supply, and
Refer to P.166
disconnect U, V, and W
harnesses
Turn off the power supply, replace
the harnesses, and restart the
compressor after turning on the
power supply again.
Service Diagnosis
5 5 ( - )
The machine is shut down when the fault count reaches 16.
Clear condition: Continuous operation for 11 min. (without fault)
Compressor lock
Disconnection of compressor harness
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check No.14
Check the inverter by the
inverter checker*
Is it OK?
YES
Does the compressor
stop without running?
NO
Does the machine
shut down after
repeating stop of
compressor
several times?
YES
NO
YES
NO
Troubleshooting
* Inverter checker
Part No.: 1225477
Rectify the power supply or
replace the outdoor unit PCB.
Replace the compressor.
Check the electronic
expansion valve.
Replace the electronic
expansion valve.
Replace the compressor.
(R9439)
127