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Troubleshooting
Service manual
38
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04 – 2022.04
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.5.34 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.
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
60].
Possible cause:
Faulty wiring between the outdoor unit and the indoor unit.
3
Perform a check of the main PCB. See Main PCB.
Possible cause:
Faulty main PCB.
4
Perform a check of the indoor unit main PCB. See Indoor unit PCB.
Possible cause:
Faulty indoor unit main PCB.
5
Perform a check of the indoor unit power PCB. See Indoor unit power PCB.
Possible cause:
Faulty indoor unit power PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.5.35 UH-00 – Malfunction of system
Trigger
Effect
Reset
In case of connection with
multi indoor units, when
error UA, U0 or A5 occurs
in other indoor unit.
Unit will stop operating.
Auto reset.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Check all other indoor units for the following error codes. If found, see
"3.5 Error based troubleshooting"
15] to solve the specific error.
draft – 22/04/2022 08:50
