Ikea Stuck Relay or Control Logic Fault

Microwave cavity light, fan, and turntable run when the door is closed, but the timer does not count down.

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.

Possible Causes

Stuck power relay on control board, Shorted triac, Software glitch in main PCB, Miswired door switch

How to Fix / Troubleshooting

Safety: Unplug immediately; this is an abnormal condition.

Steps:

1. Power reset: Unplug for 10 minutes, then reconnect and observe if the behavior persists.
2. Do not use: If the unit runs without a program, do not continue to operate it.

Resolution: A technician should inspect and replace the main control PCB or stuck relay with IKEA-compatible parts and verify correct door switch wiring.

Repair Difficulty

Professional Required 5/5

Required Part

Main Control PCB

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