Repair Procedures - Daikin Comfora XP Series Service Manual

3 | Components
Problem solved?

3.7.2 Repair procedures

Service manual
84
▪ Press , , and
▪ Press .
▪ Select T (test run mode).
▪ Press to select FAN.
▪ Press to start power transistor check operation.
CAUTION
Make sure that the Faston connectors are disconnected from the compressor wire
terminals and connected to the Inverter Analyzer before starting the power
transistor check operation. If NOT, power transistor check operation may damage
the compressor.
INFORMATION
Wait for 3 minutes for the power transistor check operation to start.
6 All LED's on the Inverter Analyzer must lit.
7 Turn off the respective circuit breaker.
8 Wait a few minutes and confirm that the LED's of the Inverter Analyzer are off.
9 Disconnect the Inverter Analyzer from the Faston connectors.
10 Connect the Faston connectors to the wire terminals U, V and W of the
compressor.
INFORMATION
Use the notes made during disconnection to connect the compressor wiring to the
correct wire terminals of the compressor.
All LED's of the inverter analyzer are lit
during inverter test?
Yes
No
After all checking procedures listed above have been performed:
Is the problem solved?
Yes
No
As the inverter PCB is integrated in the main PCB of the unit, see
4
PCB" [ 85] for the repair procedures.
simultaneously.
Action
Return to "3.7.1 Checking
4
procedures" [
and continue with the next procedure.
Replace the inverter PCB, see
"3.7.2 Repair
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
83] of the inverter PCB
4
procedures" [ 84].
"3.8 Main
Split Comfora R32
ESIE18-01D – 2022.02