Daikin FTKB09AXVJU Service Manual page 50

Description COMPRESSOR LOCK/START-UP ABNORMALITY
Possible Root 1. Compressor locked.
cause 2. Compressor harness disconnect.
Troubleshooting
harnesses. Turn on power again
Turn off power.
Disconnect harnesses U, V and
W.
Check with Inverter analyzer.
Normal?
Yes
Turn off power and reconnect
and restart system.
Emergency stop
without compressor
running?
No
System shut down
after errors repeated
several times?
Yes
E6
No
Yes
No
Service Diagnosis
Correct power supply or
replace outdoor unit PCB.
Replace the compressor.
Check outdoor electronic
expansion valve coil.
Replace it as required.
Replace the compressor.
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