Proctor Silex Low Brew Temperature / Underheating

Coffee is not hot enough 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

Weak heating element, Thermostat opening too early, Heavy scale on heater reducing heat transfer, Faulty temperature sensor

How to Fix / Troubleshooting

Safety first: Unplug before internal checks.

  • Preheat carafe: Rinse the carafe with hot tap water before brewing to reduce heat loss.
  • Descale: Run a full descaling cycle to restore proper heat transfer in the heater tube.
  • Check warming plate: Confirm that the warming plate heats up during and after brewing. If it remains cool, the heater or thermostat may be faulty.
  • Advanced testing: With a thermometer, measure coffee temperature immediately after brewing; it should typically be around 175–185°F (79–85°C). Significantly lower temperatures indicate a heating system problem requiring heater or thermostat replacement.
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Repair Difficulty

Medium 3/5

Required Part

Heating Element Assembly
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