L1
Belling
Low Temperature Alarm / Overcooling
L1 or LO displayed; freezer temperature is lower than set, sometimes causing excessive frosting or very hard ice cream.
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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
Thermostat stuck in closed position, Shorted temperature sensor, Main PCB output relay stuck on, Incorrect temperature setting or fast-freeze left on
How to Fix / Troubleshooting
Safety: Disconnect power before accessing controls.
Steps:
- 1. Check settings: Ensure fast-freeze mode is not engaged and that the set temperature is appropriate (typically around -18°C).
- 2. Observe compressor: If the compressor runs almost constantly even after temperature is very low, suspect thermostat or PCB control issues.
- 3. Mechanical thermostat: For models with a dial thermostat, test the thermostat for proper switching. Replace if it remains closed regardless of knob position.
- 4. Electronic control: Test the cabinet sensor for correct resistance. A shorted sensor can make the PCB think the freezer is warm, keeping the compressor on.
- 5. PCB relay: If the compressor remains powered even when the PCB output should be off, the relay contacts may be welded. Replace the main control PCB.
Note: Overcooling wastes energy and can damage some foods; address promptly.
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Repair Difficulty
Medium
3/5
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