Hamilton Beach Stuck Door Switch or Control Relay

Microwave interior light stays on even when the door is closed and not cooking.

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

Door switch stuck in door-open position, Misaligned door latch, Stuck lamp relay on control board, Shorted wiring to lamp

Safety: Unplug the microwave before inspection.

Steps:

Open and close the door several times to see if the light turns off; if not, suspect a door switch or control issue.
Inspect the door latch hooks and strike for proper engagement.

Internal (qualified DIYers):

Test the door switches to ensure they change state correctly with door movement.
If switches are good, the control board lamp relay may be stuck and the board should be replaced.

Medium 3/5

Door Switch Assembly

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