Daikin AT12BV1LS Pocket Manual page 44

Si10-417
5.2.6 Compressor Lock
Remote
Controller
Display
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Trouble
shooting
Note: If the model doesn't have SPM, replace the outdoor unit
Service Diagnosis
E6
A compressor lock is detected by checking the
compressor running condition through the position
detection circuit.
The system judges the compressor lock, and stops
due to over current.
The system judges the compressor lock, and cannot
operation with position detection within 15 seconds
after start up.
The system will be shut down if the error occurs 16
times.
Clearing condition: Continuous run for about 5
minutes (normal)
Compressor locked
Be sure to turn off power switch before connect or
Caution disconnect connector, or parts damage may be occurred.
Turn off the power. Disconnect
the harnesses U, V and W.
Check with the inverter
checker (∗).
Normal?
YES
Turn off the power and reconnect
the harnesses. Turn on the power
again and get the system restarted.
Emergency stop
without compressor
running?
NO
System shut
down after errors repeated
several times?
YES
PCB.
Troubleshooting
∗ Inverter checker
Part No.: 1225477
NO
Correct the power
supply or replace the
SPM.
(Replace the outdoor
unit PCB.)
YES
Replace the
compressor.
NO
Check the electronic
expansion valve.
Replace it as required.
Replace the compressor.
(R2842)
43