Question about Samsung MS1040BB Microwave Oven

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Cooktop light is flashing

The cooktop light is flashing when the microwave in use. What we should do?

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We see this a lot. Assuming the bulbs, sockets and wiring are okay, the problem is on the control panel, which we regularly repair nationwide for $39.95 postpaid.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa:

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Jan 13, 2008


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Posted on Jan 02, 2017


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I would say a cooktop lamp got shorted by the moisture.

Assuming your circuit breaker is good, the main problem would probably be a blown 15A or 20A ceramic fuse inside the unit.

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If you or someone you know decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa:

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We're happy to help and we appreciate your thoughtful rating of our answer.

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