Ikea Intermittent Power or Control Board Fault

Microwave display and clock reset randomly or the unit restarts during cooking.

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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 main control PCB, Overheating control board, Faulty line filter

How to Fix / Troubleshooting

Safety: Unplug before opening the cabinet.

Steps:

  • 1. Check plug and outlet: Ensure the plug is fully inserted and the outlet is not loose.
  • 2. Avoid shared circuits: Do not run the microwave on the same circuit as heavy appliances that may cause voltage dips.
  • 3. Ventilation for electronics: Ensure the control panel area is not blocked and that the unit is installed per IKEA guidelines.
  • 4. Inspect PCB (DIYers): Look for signs of overheating or cracked solder joints on the control board.

Resolution: Replace the main control PCB or line filter with IKEA-compatible parts if random resets continue.

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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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