2
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Troubleshooting
Service manual
28
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01E – 2023.01
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.5.18 H6-00 – Outdoor unit: Malfunction of position detection sensor
Trigger
Effect
Reset
Compressor fails to start
within 15 seconds after
the compressor run
command signal is sent.
Unit will NOT stop
operating.
Automatic reset after a
continuous operation of
10 minutes.
If the error re-occurs
within 8 minutes: unit will
stop operating.
Manual reset via user
interface.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the compressor. See
Possible cause:
Faulty compressor or miswiring of the compressor power
supply cable.
2
Perform a check of the main PCB. See
Possible cause:
Faulty main PCB.
3
Check that all stop valves of the refrigerant circuit are open. See
144].
Possible cause:
Closed stop valve in the refrigerant circuit.
4
Check if the refrigerant circuit is clogged. See
144].
Possible cause:
Clogged refrigerant circuit.
5
Check if the refrigerant circuit is correctly charged. See
144].
Possible cause:
Refrigerant overcharge or shortage.
6
Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
Possible cause:
Non‑condensables and/or humidity in the refrigerant circuit.
7
Check if the power supply is compliant with the regulations. See
142].
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Summary of Contents for FTXP20-71L
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