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4
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Third party components
Service manual
154
(A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D +
(A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C +
(A)RXF20~42D + (A)RXF20~42E
Split Sensira R32
ESIE18-12G – 2023.01
Is the measured voltage (power supply)
correct?
Action
No
Continue with the next step.
6
Check the power supply to the unit, see
Does the unit receive power?
Action
Yes
Correct the wiring from the main power
supply terminal to the indoor unit
power supply terminal, see
154].
No
Adjust the power supply to the unit, see
154].
To check the wiring between the outdoor unit and the indoor unit
1
Check that all wires are properly connected and that all connectors are fully
plugged‑in.
2
Check that no connectors or wires are damaged.
3
Check that the wiring corresponds with the wiring diagram, see
169].
INFORMATION
Correct the wiring as needed.
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.
4.1.2 Repair procedures
To adjust the power supply
1
Make sure that the power source is in line with the requirements described in
the databook.
2
Adjust the power supply within 50 Hz ± 3%.
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.
To correct the wiring from the main power supply terminal to the indoor unit power supply
terminal
Prerequisite:
Stop the unit operation via the user interface.
Prerequisite:
Turn OFF the respective circuit breaker.
Prerequisite:
Remove the required plate work, see
124].
1
Make sure that all wires are firmly and correctly connected, see
169].
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