1 | Troubleshooting
Service manual
29
(C)(F)TXA15~50A(W)(S)(T) + (C)(F)TXA15~50B(B)(S)(T) + RXA42+50A +
RXA20~35A + RXA42+50B
Split Stylish R32
ESIE18-03C – 2020.02
2 Perform a check of the power supply, connections, wiring,… between the
outdoor unit and the indoor unit. See "3.1Electrical circuit"[4131].
Possible cause: Faulty wiring between the outdoor unit and the indoor unit.
3 Perform a check of the main PCB. See "2.11Main PCB"[481].
Possible cause: Faulty main PCB.
4 Perform a check of the outdoor unit fan motor. See "2.12 Outdoor unit fan
motor"[489].
Possible cause: Faulty outdoor unit fan motor.
5 Perform a check of the indoor unit PCB. See "2.8Indoor unit PCB"[471].
Possible cause: Faulty indoor unit PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.33 U5-00 – Transmission malfunction between indoor unit and remote controller
Trigger Effect Reset
Communication failure
between indoor unit and
user interface.
Unit will stop operating. Automatic reset.
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 remote controller.
See Business Portal for more information.
Possible cause: Improper combination of indoor unit and remote controller.
2 Perform a check of the remote controller. See documentation of the specific
remote controller for more information.
Possible cause: Faulty remote controller.
3 Perform a check of the indoor unit PCB. See "2.8Indoor unit PCB"[471].
Possible cause: Faulty indoor unit PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.34 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.
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