Sunbeam Intermittent Power or Thermal Cutout

Coffee maker starts but stops brewing mid-cycle, leaving water in the reservoir.

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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

Overheating causing thermostat to open, Loose power cord connection, Failing vibration pump, Scale buildup restricting flow

How to Fix / Troubleshooting

Safety first: Unplug the coffee maker and allow it to cool before inspection.

  • 1. Descale the unit
    • Run a full descale cycle with a 1:1 vinegar and water solution to remove mineral buildup.
  • 2. Check power stability
    • Ensure the cord is firmly plugged into a stable outlet.
    • Avoid using power strips or extension cords that may cause voltage drops.
  • 3. Observe behavior
    • Restart a brew cycle and watch for when it stops.
    • If it stops when the plate is very hot, the thermostat may be opening prematurely.
  • 4. Inspect thermostat and wiring (advanced)
    • Unplug and remove the bottom cover.
    • Check the thermostat and thermal fuse on the heater for signs of overheating or loose connections.
  • 5. Replace failing parts
    • If the pump is noisy and flow is weak, replace the vibration pump.
    • If the thermostat opens too early, replace the thermostat assembly.
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Repair Difficulty

Hard 4/5

Required Part

Thermostat and Vibration Pump Assembly
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