1
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Troubleshooting
Service manual
17
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.14 F6-00 – Outdoor unit: Abnormal high pressure in cooling
Trigger
Effect
Reset
Outdoor heat exchanger
thermistor measures a
too high temperature.
Unit will NOT stop
operating.
Automatic reset when
temperature drops.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Clean the outdoor heat exchanger. See
138].
Possible cause:
Dirty outdoor heat exchanger.
2
Check that all stop valves of the refrigerant circuit are open. See
Possible cause:
Closed stop valve in the refrigerant circuit.
3
Perform
a
check
of
the
heat
exchanger
thermistor.
See
117].
Possible cause:
Faulty heat exchanger thermistor.
4
Perform a check of the expansion valve. See
Possible cause:
Faulty expansion valve.
5
Perform a check of the main PCB. See
74].
Possible cause:
Faulty main PCB.
6
Check if the refrigerant circuit is correctly charged. See
Possible cause:
Refrigerant overcharge.
7
Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
129].
Possible cause:
Non‑condensables and/or humidity in the refrigerant circuit.
8
Check if the refrigerant circuit is clogged. See
Possible cause:
Clogged refrigerant circuit.
9
Perform a check of the outdoor unit fan motor. See
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.
Summary of Contents for Sensira Series
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