F4
Beko
Compressor Discharge Overheat Protection
Indoor unit shows F4; compressor may not start or may shut down quickly.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Blocked outdoor coil, Outdoor fan failure, Low refrigerant flow due to restriction, Faulty discharge temperature sensor or poor contact with pipe
How to Fix / Troubleshooting
Warning: Discharge line temperatures can be very high. Ensure the unit is off and cooled before touching piping.
- 1. Clean outdoor coil and check fan: Follow steps in F3 to ensure proper outdoor airflow.
- 2. Inspect discharge sensor: Confirm the sensor is firmly attached to the discharge pipe and insulated as originally installed.
- 3. Avoid overloading: Do not operate the unit with windows/doors open in extreme heat, which can overload the system.
- 4. Professional diagnosis: If F4 recurs, a technician should check refrigerant flow, compressor condition, and sensor accuracy.
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Repair Difficulty
Hard
4/5
Required Part
Compressor Discharge Pipe Temperature Sensor (NTC)
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