Bunn Intermittent Power Loss / Overheat Protection

Bunn coffee maker intermittently shuts off or resets during 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

Loose power cord connection, Failing internal power supply, Overheating control board, Tripping thermal cutout

How to Fix / Troubleshooting

Safety: Unplug the brewer before inspection. If the unit is very hot, allow it to cool.

Steps:

  • 1. Check cord and plug: Ensure the plug fits tightly in the outlet and that the cord is not being pulled or flexed excessively.
  • 2. Inspect internal connections: Tighten any loose connections at the power entry, switch, and control board.
  • 3. Ventilation: Make sure the brewer has adequate space around it for cooling and that vents are not blocked.
  • 4. Control board and thermal devices: Inspect the control board for overheating signs and test any thermal cutouts. Replace components that are tripping prematurely or show damage.
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Repair Difficulty

Medium 3/5

Required Part

Power Cord
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