Compressor Lock - Daikin F-Series Service Manual

Troubleshooting
4.9

Compressor Lock

E6
Remote Control
Display
Method of
Judging from current waveform generated when high-frequency voltage is applied to the
Malfunction compressor.
Detection
Malfunction " The system will be shut down if the error occurs 16 times.
Decision " Clearing condition: Continuous run for about 11 minutes (normal)
Conditions
Supposed
" Compressor locked
Causes " Disconnection of compressor harness
Troubleshooting
Turn off the power. Disconnect the
harnesses U, V and W.
Turn off the power and reconnect
the harnesses. Turn on the power
again and get the system restarted.
Note: If the model does not have SPM, replace the outdoor unit PCB.
120
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
(Precaution before turning on the power again)
Make sure the power has been off for at least 30 seconds.
Check with the inverter checker (∗).
Normal?
YES
Emergency
stop without compressor
running?
NO
System shut
down after errors repeated
several times?
YES
NO
YES
NO
SiEN12-710A
∗ Inverter checker
Part No.: 1225477
Correct the power supply or
replace the SPM.
(Replace the outdoor unit
PCB.)
Replace the compressor.
Check the electronic
expansion valve.
Replace it as required.
Replace the compressor.
(R7138)
Service Diagnosis