Insignia Keep-Warm Overrun / Control Fault

Warming plate stays on for many hours or does not turn off automatically as expected.

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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

Stuck heater relay on control board, Incorrect auto-off setting, Thermostat welded closed, Firmware error

How to Fix / Troubleshooting

Safety first: Unplug the coffee maker when not in use to prevent overheating or fire risk.

  • Check auto-off setting: Some Insignia models allow adjusting the keep-warm duration. Set it to the minimum and test.
  • Observe behavior: Time how long the plate stays hot after brewing. If it exceeds the specified auto-off time, discontinue unattended use.
  • Internal inspection (advanced): With the base removed (unplugged), inspect the control board relay controlling the plate for signs of heat damage.

A warming plate that never turns off indicates a control or thermostat failure and should be serviced or the unit replaced.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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