My microwave started making a humming noise and won't work. The light doesn't come on either. I've tried unplugging it and plugging into a different outlet. Still doesn't work. It's getting power - the clock works. It's a GE Spacesaver XL1800. Any solutions?

1. Defective control board
2. Defective door interlock

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There are other videos with possible causes and solutions on YouTube.

Again, it may be a defective door switch or shorted cook relay.

This louder, 60 cycle hum is usually caused by a bad magnetron. The unit will not heat when this happens. Repair cost can exceed $100.

This is the power transformer humming, sometimes when transformers get older you get vibrations in the windings due to magnetic fields generated within the transformer which causes the humming noise, It's more annoying than anything and won't affect the operation of the microwave.

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for about 5 minutes and try again.

sounds like the fan inside oven seized, causing the smoke and popped the internal fuse. If you have any appliance repair shops around, they should be able to fix it for you cheaper than replacing the entire unit. Make sure you leave it unplugged, I know thats abvious but had to mention. Good Luck!

hi it could be a bad neutral connection on your plug or inside on your high voltage transformer check the plug for burning and try plugging it in a different socket

The constant humming noise you hear when the microwave is plugged-in but not running is caused by the Low Voltage Transformer, which is located inside the back wall of the outer cabinet on the left side. If the microwave is working properly otherwise, there is no hazard, just the annoying noise.

To access the transformer, the microwave must be taken down and the outer cover removed. The transformer is held to the back wall of the cabinet with four screws, and there are two sets of leads with pull-apart connectors. The noise is the result of 60hz vibration being transmitted to the sheet metal from the transformer which may not have been sufficiently "potted" or otherwise mechanically isolated when manufactured. You can either replace the transformer or try wedging some thin rubber or other material between the transformer and the sheet metal to quiet the noise. Just be careful to not damage the windings!

I left the unit unplugged over night, plugged it back in the next day and still had the same problem.