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LG LMV1813ST Microwave Oven Questions & Answers
Replaced the bulbs underneath now they won`t turn off
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.
The lights can can be inoperable or stuck on or stuck in "night light" mode. Sometimes this will similarly affect the fan operation or inside light, too.
The problem is on the controller assembly, which I regularly repair.
Details are here.
I also have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.
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Trip Circuit Breaker
The circuit breakers may both be functioning properly. What might be happening is that both circuits have other current drawing appliances on them. The circuit breakers react to the sum of all of the currents drawn by all of the devices on that circuit. So, if you have a 15 amp microwave and an 8 amp refrigerator on the same circuit, you would overload a 20 amp circuit by 3 amps. If you need further help, I’m available over the phone at
https://www.6ya.com/expert/david_29ad5d1dd86564b0
LG LMV1813ST MIRCOWAVE STOPPED WORKING?
The fuse can be replaced, but the underlying issue should still be investigated and resolved. Otherwise the new fuse will blow also.
If the microwave is not working the thermal fuse may have blown.
When a microwave stops working the problem is usually the line fuse or within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.
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