Re: Oven makes loud noice, it will not heat and smells...
This is a classic symptom of the magnetron failing, gives a odour in some cases when it dies. This is the heart of the microwave oven and the most expensive part.
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Seems to me that your magnetron is a goner, check also the antenna shield, cover inside the oven cavity and replace both, you may need to clean and repaint burn surfaces inside oven cavity.
The loud noise and no heat means that the magnetron has failed. It the part that generates the microwaves that heat the food. When it fails it shorts out, causing the transformer to heat up. That is what was causing the burning smell. The cost of a replacement magnetron is around $130-150 range so it may not make sense to have it fixed.
When the oven does not heat, the problem is usually due to the magnetron failing. It the part that generates the microwaves that heat the food. It fails by shorting out causing a loud buzzing noise. The burning smell is the being magnetron overloaded due to the short. It not worth fixing since the replacement cost of a magnetron is close to the price of a new oven. Sorry.
Hi,
Most of the time not...it costs more then they are worth... Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....
Loud hum is usually due to faulty hv diod, resonance capacitor, or the magnatrone feed thru capacitor , chk it with a ohm meter , one by one n replace it ..
zaheer
Islamabad
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This can be caused by grease etc. inside
the oven and on the wave guide which is the paper like thing in the oven. If
you can remove it look for burnt areas which may can be scraped off or you may
need to replace it. An appliance parts store usually has the material you can
cut to fit you own.
The noise is coming from the high-voltage transformer being overloaded
by something shorting it out. Either the magnatron or the
high-voltage capacitor and diode. Replace the capacitor and
diode then if still not working, replace the magnatron. Its only
affordable if you do it yourself - buy the part on EBAY - lookup
"universal magnatron"
Hope ya fix it!
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