Daikin FTXS09HVJU Service Manual page 121

SiUS04-904
4.8.2 15/18/24 Class
E6
Remote
Controller
Display
A compressor lock is detected by checking the compressor running condition through the position
Method of
detection circuit.
Malfunction
Detection
 The position detection circuit detects a compressor frequency of below 10 Hz for 20 seconds or
Malfunction
Decision
 40 seconds after the compressor has started, the position detection circuit detects a
Conditions
 The system is shut down if the error occurs 16 times.
 Clearing condition: Continuous run for about 5 minutes (normal)
 Compressor locked
Supposed
Causes
Troubleshooting
110
a frequency of above 160 Hz.
compressor frequency of above 180 Hz.
Be sure to turn off the power switch before connecting or disconnecting
Caution
the connector, or parts damage may occur.
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
NO
YES
NO
Troubleshooting
* 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.
(R10499)
Service Diagnosis