Smoke and burning plastic smell in microwave oven

Is it a plastic burning smell? It sounds like the magnetron is overheating. Can you hear the cooling fan running? Is there anything blocking the vents on the unit?

Replace the microwave oven, the problem is the magnetron, "heart of the system" and the most expensive part.

Hi,

Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Basic Microwave Oven Troubleshooting Tips

heatman101

[\]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]

Just had my Kitchen Aid Microwave KHMS155LSS burn up and bellow smoke.

Thankfully, I was close by, stopped the microwave, vented the smoke, turned off the circuit breaker and unplugged it. Still the smell of burned motor, burned plastic has me concerned. Did it get hot enough to cause problems behind the drywall? So far, I am keeping a "fire watch" to make sure nothing is smoldering.

This is almost certainly some of the protective oils and varnishes which were applied during manufacture flashing off.

All new products of this type do this to some degree but your description seems to indicate that it's much worse than normal with your machine.

Ordinarily, you can expect this to cease after a few uses and if the level of smoke and odour you've described is to be expected then the instruction booklet should say so. But as yours has visible smoke and a burning plastic smell I'd recommend that you exercise your rights under the Sale of Goods Act and return it to Tesco for a full refund or replacement. The smell of burnt lubricant is one thing, but a burning plastic smell means you can never trust the oven to be safe: none of the many microwave ovens which I've dealt with have ever smelled of burning plastic unless there was a fault.

You won't find any objection from Tesco as they do have good customer service; and when I lived in Cullompton briefly earlier this year the local branch was even better than usual at keeping customers happy.

I hope that you have found my reply to be of assistance and ask in return only that you return the favour by rating my answer.

your hi voltage transformer or magnetron tube are burning up from too much current draw from the mag tube

Hi,
Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Microwave Oven Basic Troubleshooting Tips
http://www.fixya.com/support/r5508031-microwave_oven_basic_troubleshooting

heatman101

time to put it to rest

hi dr68,

The service techs at servepro fire/water damage cleanup and restoration might have a few free suggestions, they deal with smoke damage/residual odor issues every day.

Servpro Industries, Inc.
801 Industrial Boulevard
Gallatin, TN 37066

Phone: (615) 451-0200
Fax: (615) 451-0291


anaanymous

If you clean any appliances always plug out the unit power supply do spray any liquid in the unit that can enter inside the control, instead just wipe it with rug not spray. In this situation you have to call for a qualified technician. Maybe there are some wires that burned or rust in the control that cause the short circuit inside the unit..