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Troubleshooting
Service manual
35
RXQ25+3 3 3
35AMV1B
Split Sensira R32 BBOP
ESIE21-16 – 2022.02
2.5.28 UA-00 – Indoor unit, outdoor unit mismatching problem
Trigger
Effect
Reset
Signal transmission
between outdoor and
indoor unit abnormality.
Improper combination of
outdoor and indoor unit.
Unit will stop operating.
Power reset via outdoor
unit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Check for improper combination of the indoor unit and the outdoor unit. See
the combination table in the Databook for more information.
2
Perform a check of the power supply, connections, wiring,… between the
outdoor unit and the indoor unit. See
118].
Possible cause:
Faulty wiring between the outdoor unit and the indoor unit.
3
Perform a check of the main PCB. See
81].
Possible cause:
Faulty main PCB.
4
Perform a check of the indoor unit main PCB. See
74].
Possible cause:
Faulty indoor unit main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.