Chefman Over-Extraction / Overheating

Brewed coffee is very bitter or has a burnt taste.

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.

Possible Causes

Coffee left on warming plate too long, Warming plate thermostat stuck on high, Using too fine a grind or too much coffee, Brew temperature too high due to sensor fault

How to Fix / Troubleshooting

Safety first: Unplug before cleaning.

Steps:

Do not leave coffee on the warming plate for extended periods; transfer to a thermal carafe if possible.
Use a medium grind and follow recommended coffee amounts.
Descale the machine to ensure accurate temperature control.

If the warming plate seems excessively hot or scorches coffee quickly, the warming plate thermostat or control board may be faulty and require replacement.

Repair Difficulty

Medium 3/5

Required Part

Warming Plate Thermostat

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