Sunbeam
Warming Plate Stuck On
Warming plate stays hot for hours or does not turn off when 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 relay on control board, Shorted thermostat contacts, Incorrect keep-warm timer setting, Firmware glitch
How to Fix / Troubleshooting
Safety first: Unplug the coffee maker when not in use to prevent overheating. Do not leave it unattended if the plate will not turn off.
- 1. Check timer settings
- Verify the keep-warm duration setting; reduce it if possible.
- 2. Power reset
- Unplug the unit for 10 minutes, then plug back in and test if the plate now turns off correctly after a brew cycle.
- 3. Observe relay behavior (advanced)
- Unplug and remove the bottom cover.
- Locate the relay controlling the warming plate on the main PCB.
- If the relay contacts are welded closed, the plate will stay on.
- 4. Replace faulty components
- Replace the main control board if the relay is stuck.
- If the thermostat is shorted, replace the thermostat assembly.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board and Warming Plate Thermostat
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