3
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Components
Service manual
84
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01D – 2022.02
▪
Press
,
, and
simultaneously.
▪
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?
Action
Yes
83] of the inverter PCB
and continue with the next procedure.
No
Replace the inverter PCB, see
Problem solved?
After all checking procedures listed above have been performed:
Is the problem solved?
Action
Yes
No further actions required.
No
Return to the troubleshooting of the
specific error and continue with the
next procedure.
3.7.2 Repair procedures
As the inverter PCB is integrated in the main PCB of the unit, see
Summary of Contents for Comfora ARXP20L
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