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Troubleshooting
Service manual
32
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04 – 2022.04
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the main PCB. See Main PCB.
Possible cause:
Faulty main PCB.
2
Perform a check of the outdoor unit fan motor. See Outdoor unit fan motor.
Possible cause:
Faulty outdoor unit fan motor.
3
Check if the power supply is compliant with the regulations. See
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
4
Clean the outdoor heat exchanger. See
Possible cause:
Dirty outdoor heat exchanger.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.5.27 L4-00 – Outdoor unit: Malfunction of inverter radiating fin temperature rise
Trigger
Effect
Reset
Radiating fin thermistor
measures a too high
temperature.
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 outdoor unit fan motor. See Outdoor unit fan motor.
Possible cause:
Faulty outdoor unit fan motor.
2
Check if the power supply is compliant with the regulations. See
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
3
Perform a check of the main PCB. See Main PCB.
Possible cause:
Faulty main PCB.
Prerequisite:
Stop the unit operation via the user interface.
Prerequisite:
Turn OFF the respective circuit breaker.
draft – 22/04/2022 08:50
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