Gladiator Nuisance Alarm / Sensor or Door Switch Issue

Freezer alarm sounds periodically even though temperature appears normal.

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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

Weak or bouncing door switch, Intermittent thermistor connection, Control board sensitivity, Power fluctuations

How to Fix / Troubleshooting

Safety First: Unplug the freezer before testing switches or sensors.

  • Step 1 – Confirm actual temperature: Use a thermometer to verify that temperature is stable around 0°F (-18°C).
  • Step 2 – Check door switch: Wiggle the door while watching the interior light. If it flickers, replace the door switch.
  • Step 3 – Inspect sensor wiring: Ensure thermistor harnesses are secure and not damaged.
  • Step 4 – Reset alarm: Use the Alarm Reset button. If alarms persist without real temperature issues, the control board may be overly sensitive and require replacement.
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Repair Difficulty

Medium 3/5

Required Part

Door Switch
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