Abruptly stopped heating food and now makes loud BUZZZ noise when I attemot to use the microwave. Would lke to know if this is likely to be worth repairing, If not, what current model will fit exactly?

Whirlpool Microwave Buzzing Loudly - ApplianceBlog

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Aug 12, 2011 - 10 posts - ‎2 authors
My Whirlpool MT4155SPS-2 microwave oven has recently started to buzz loudlywhen operated. The sound is getting louder and more frequent ...

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That is a symptom that the magnetron circuit has failed. It the part that generates the microwaves that heat the food. Not worth fixing since the replacement part can cost as much as as a new oven. Sorry.

The lack of heat would mean a failure in the magnetron circuit. It is the part that generates microwaves that heats the food. If it is making a loud buzzing noise when you operate the oven, it usually means that the magnetron has failed. It can cost as much as a new oven to repair, so it not worth fixing.

If the oven is making a loud buzzing noise when you try to warm food and the food remains cold, it usually means that the magnetron has failed. Not usually worth fixing since the parts alone can cause as much as a new oven.

It's most likely the magnetron that has failed if it does not heat the food. The magnetron is the part the generates the microwaves. When it fails, it typically shorts out, and makes a loud hum or buzzing noise. If this is the case, it is not worth fixing since the cost of the magnetron is almost as much as getting a new oven. Sorry.

From your description it sounds like the magnetron has failed in this oven. That's the part the makes the microwaves to heat the food. It typically fails by shorting out and making a loud hum noise. It not usually worth fixing since the price of a replacement magnetron is almost as much as a new oven.

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

Microwave Oven Basic Troubleshooting Tips

heatman101
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Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Basic Microwave Oven TroubleshootingTips

heatman101==]-]=-

IF the noise is a sound coming from the oven area, its the megatron tube. Typically, replacing the megatron tube is more expensive than replacing wiht a new unit and a new warranty.

You have burned out the magnatron (heating element) which is common on GE microwaves. most service companies will charge about 200-250 to replace it