Si10-417
Troubleshooting
Service Diagnosis
43
5.2.6 Compressor Lock
Remote
Controller
Display
E6
Method of
Malfunction
Detection
A compressor lock is detected by checking the
compressor running condition through the position
detection circuit.
Malfunction
Decision
Conditions
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)
Supposed
Causes
Compressor locked
Trouble
shooting
Note:
If the model doesn’t have SPM, replace the outdoor unit
PCB.
Turn off the power. Disconnect
the harnesses U, V and W.
∗
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.
(R2842)
NO
YES
YES
System shut
down after errors repeated
several times?
NO
NO
Normal?
Emergency stop
without compressor
running?
Check with the inverter
checker (
∗
).
Turn off the power and reconnect
the harnesses. Turn on the power
again and get the system restarted.
YES
Caution
Be sure to turn off power switch before connect or
disconnect connector, or parts damage may be occurred.
Si10-417.fm Page 43 Wednesday, September 22, 2004 6:38 PM
