Gladiator Temperature Fluctuation / Control Instability

Freezer interior temperature fluctuates widely, causing partial thawing and refreezing.

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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

Faulty thermostat or thermistor, Control board issues, Evaporator fan intermittent, Door frequently opened

How to Fix / Troubleshooting

Safety First: Unplug the freezer before accessing controls or fans.

  • Step 1 – Monitor with thermometer: Place a freezer thermometer inside and log temperatures over 24–48 hours.
  • Step 2 – Check fan operation: Ensure the evaporator fan motor runs consistently when the compressor is on. Replace if it stops intermittently.
  • Step 3 – Inspect sensors: Test the thermistor(s) for stable resistance values. Replace if readings jump or are out of spec.
  • Step 4 – Replace control: If sensors and fan are good, the electronic control board may be cycling incorrectly and should be replaced.
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Repair Difficulty

Hard 4/5

Required Part

Freezer Thermistor
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