3
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Troubleshooting
Service manual
18
RXM20~71R(9) + ARXM25~71R(9) + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11B – 2022.02
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.5.2 A5-00 – Outdoor unit: High pressure peak cut / freeze protection problem
Trigger
Effect
Reset
During cooling operation,
indoor heat exchanger
temperature is below 0°C
(freeze‑up protection
control).
Unit will stop operating.
Automatic reset when
temperature is within
range.
During heating operation,
indoor heat exchanger
temperature is above
65°C (heating peak‑cut
control).
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Check for objects near the indoor unit that may block the airflow. See
Possible cause:
Airflow of the indoor unit is blocked.
2
Clean the air filter of the indoor unit(s). See
Possible cause:
Faulty or dirty air filter.
3
Clean the indoor unit heat exchanger. See
217].
Possible cause:
Dirty indoor unit heat exchanger.
4
Perform a check of the indoor unit heat exchanger thermistor. See
Possible cause:
Faulty indoor unit heat exchanger thermistor.
5
Perform a check of the indoor unit main PCB. See
106].
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.
