Sunbeam
Corrosion or Mineral Contamination
Brewed coffee has a metallic or rusty taste.
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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
Severe scale buildup in boiler, Corroded internal metal components, Use of unfiltered well water with high mineral content, Deteriorated aluminum heating tube
How to Fix / Troubleshooting
Safety first: Unplug the coffee maker and allow it to cool before descaling or inspection.
- 1. Descale thoroughly
- Run multiple descale cycles with a 1:1 vinegar and water solution until scale is removed.
- 2. Use filtered water
- Switch to filtered or bottled water to reduce mineral content.
- 3. Inspect for visible corrosion (advanced)
- Unplug and remove the bottom cover.
- Inspect the boiler and metal tubing for corrosion or pitting.
- 4. Replace corroded components
- If the boiler or heating tube is heavily corroded, replace the boiler/heater assembly.
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Repair Difficulty
Hard
4/5
Required Part
Boiler / Heating Tube Assembly
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