Daikin 3MKS50DVM, Service Manual

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Si12-619A Troubleshooting
Service Diagnosis 227
5.13.2 E Series (50-58 Class, 80-100 Class)
Remote
Controller
Display
E6
Outdoor Unit LED
Display A 5 1 1 2 4 3 4 4 1
Method of
Malfunction
Detection A compressor lock is detected by checking the compressor running condition through the
position detection circuit.
Malfunction
Decision
Conditions
„
Judging from current waveform generated when high-frequency voltage is applied to the
compressor.
„
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
Troubleshooting
Turn off the power. Disconnect the
harnesses U, V and W.
∗
Inverter checker
Part No.: 1225477
Correct the power supply or
replace the PM1.
(Replace the outdoor unit
PCB.)
Replace the compressor.
Check the electronic
expansion valve.
Replace it as required.
Replace the compressor.
(R5143)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
YES
YES
System shut
down after errors repeated
several times?
NO
NO
Normal?
YES 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.