Insignia
Overheating Warming Plate / Over-Extraction
Coffee tastes bitter or burnt, and the warming plate seems excessively hot.
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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
Thermostat stuck closed, Incorrect keep-warm temperature control, Leaving coffee on plate too long, Scale affecting temperature sensing
How to Fix / Troubleshooting
Safety first: The warming plate can cause burns. Unplug and let it cool before touching.
- Limit keep-warm time: Turn off the coffee maker or remove the carafe from the warming plate within 30–60 minutes of brewing.
- Descale: Run a descaling cycle to help the thermostat sense temperature more accurately.
- Check plate temperature: After brewing, feel near (not on) the plate to gauge heat. If it seems excessively hot (coffee boiling), discontinue use.
- Inspect thermostat (advanced): With the base removed (unplugged), locate the thermostat on the warming plate. If it shows signs of overheating or damage, it should be replaced.
Persistent overheating indicates a faulty thermostat or control board that should be serviced by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Warming Plate Thermostat
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