Keurig Insufficient Brew Temperature

Coffee is not hot enough even immediately after brewing.

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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

Scale on heater reducing heat transfer, Faulty thermistor reading high, Incorrect temperature setting, Heater not reaching full power

How to Fix / Troubleshooting

Safety first: Unplug before moving the brewer.

  • Descale thoroughly: Scale on the heater can significantly reduce brew temperature. Run at least one full descale cycle.
  • Preheat cup: Rinse your mug with hot water before brewing to reduce heat loss.
  • Check temperature settings: Some models allow higher temp settings; set to the hottest option.
  • Measure temperature: Use a food thermometer to check coffee temperature immediately after brewing (typically 170–190°F / 77–88°C). If far below spec after descaling, the heater or thermistor may be faulty and require service.
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Repair Difficulty

Medium 3/5

Required Part

Heater Tank Assembly
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