E11
Kenmore Low Voltage / Internal Power Supply Error

E11 error and the display backlight flickers or dims; unit may reset 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

Failing power supply capacitor on control board, Loose neutral or line connection, Partially broken power cord, Overloaded outlet or power strip

How to Fix / Troubleshooting

Safety first: Unplug the coffee maker before opening the housing. Avoid touching live circuits.

  • Try a different outlet: Plug the coffee maker directly into a known-good wall outlet (no power strip). Avoid sharing with high-draw appliances.
  • Inspect power cord: Flex the cord gently along its length and near the plug. If the display flickers when the cord is moved, replace the cord set.
  • Check internal connections: Remove the bottom or rear cover and inspect the line and neutral connections to the control board. Tighten any loose spade or screw terminals.
  • Control board inspection: Look for bulging or leaking capacitors on the board. If present, the board should be replaced as a complete assembly.
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Repair Difficulty

Hard 4/5

Required Part

Main Control Board (Power Supply Section)
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