1
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Troubleshooting
Service manual
17
(C)(F)TXA15~50A(W)(S)(T) + (C)(F)TXA15~50B(B)(S)(T) + RXA42+50A +
RXA20~35A + RXA42+50B
Split Stylish R32
ESIE18-03C – 2020.02
Possible cause:
▪
Faulty or disturbance of the power supply (imbalance >10%),
▪
Power drop,
▪
Short circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.15 EA-00 – Cooling/Heating switch abnormality
Trigger
Effect
Reset
Room thermistor is NOT
functioning within
operation range.
Unit will NOT stop
operating.
Automatic reset after a
continuous operation for
some time.
If the error occurs too
soon: 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 4‑way valve. See
Possible cause:
Faulty 4‑way valve.
2
Perform a check of the main PCB. See
Possible cause:
Faulty main PCB.
3
Perform a check of the room thermistor. See
Possible cause:
Faulty room thermistor.
4
Perform a check of the indoor unit PCB. See
71].
Possible cause:
Faulty indoor unit PCB.
5
Perform a check of the refrigerant circuit. See
Possible cause:
▪
Stop valve is closed,
▪
Clogged refrigerant circuit,
▪
Refrigerant circuit NOT charged correctly,
▪
Humidity in the refrigerant circuit,
▪
Non-condensables in the refrigerant circuit,
▪
Leaking refrigerant circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
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