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Troubleshooting
Service manual
29
RXQ25+3 3 3
35AMV1B
Split Sensira R32 BBOP
ESIE21-16 – 2022.02
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform
a
check
of
the
heat
exchanger
thermistor.
See
108].
Possible cause:
Faulty heat exchanger thermistor.
2
Perform a check of the main PCB. See
81].
Possible cause:
Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.5.21 L3-00 – Outdoor unit: Electrical box temperature rise problem
Trigger
Effect
Reset
Switch box temperature is
too high.
Unit will stop operating.
Manual reset via remote
controller.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the main PCB. See
81].
Possible cause:
Faulty main PCB.
2
Perform a check of the outdoor unit fan motor. See
Possible cause:
Faulty outdoor unit fan motor.
3
Check if the power supply is compliant with the regulations. See
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
4
Clean the outdoor heat exchanger. See
129].
Possible cause:
Dirty outdoor heat exchanger.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.