2
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Troubleshooting
Service manual
21
(A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D +
(A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C +
(A)RXF20~42D + (A)RXF20~42E
Split Sensira R32
ESIE18-12G – 2023.01
Possible cause:
Refrigerant overcharge.
5
Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
155].
Possible cause:
Non‑condensables and/or humidity in the refrigerant circuit.
6
Check if the refrigerant circuit is clogged. See
Possible cause:
Clogged refrigerant circuit.
7
Perform a check of the outdoor unit fan motor. See
114].
Possible cause:
Faulty outdoor unit fan motor.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.5.8 E5-00 – Outdoor unit: Overheat of inverter compressor motor
Trigger
Effect
Reset
Compressor overload is
detected.
Unit will NOT stop
operating.
Automatic reset if the unit
runs without warning for
60 seconds.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Check that all stop valves of the refrigerant circuit are open. See
Possible cause:
Closed stop valve in the refrigerant circuit.
2
Perform
a
check
of
the
discharge
pipe
thermistor.
See
140].
Possible cause:
Faulty discharge pipe thermistor or connector fault.
3
Perform a check of the outdoor unit fan motor. See
114].
Possible cause:
Faulty outdoor unit fan motor.
4
Perform a check of the compressor. See
54].
Possible cause:
Faulty compressor or miswiring of the compressor power
supply cable.
5
Perform a check of the expansion valve. See
Possible cause:
Faulty expansion valve.
6
Perform a check of the 4‑way valve. See
Possible cause:
Faulty 4‑way valve.
7
Perform a check of the main PCB. See
89].
Possible cause:
Faulty main PCB.
8
Check if the refrigerant circuit is correctly charged. See
Содержание Split Sensira R32
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