Teka
Mechanical Thermostat Malfunction
Freezer with mechanical thermostat cycles too frequently or not frequently enough, causing temperature swings.
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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
Worn thermostat contacts, Capillary bulb not properly positioned, Incorrect thermostat calibration, Ice or debris around sensing bulb
How to Fix / Troubleshooting
Safety: Unplug the freezer before accessing the thermostat.
- Locate thermostat: Usually behind the temperature control knob inside or on the front panel.
- Check capillary bulb: Ensure the sensing bulb is firmly clipped in its correct position and not bent sharply or dislodged.
- Inspect for ice: Remove any ice buildup around the bulb that could affect sensing.
- Replace thermostat: If cycling remains erratic, install a new thermostat with the correct Teka specification, routing the capillary carefully to avoid kinks.
Test: After replacement, monitor temperature over several cycles to confirm improved stability.
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Repair Difficulty
Medium
3/5
Required Part
Mechanical Thermostat
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