The microwave is working but the sound continues even after it shuts off
Do you smell anything burning? Cut breaker off and call qualified repair person.
Testimonial: "There is no small. Just the low pitched sound"
SOURCE: Microwave quit
I would suspect either door switches or an intermittent control circuit board, either of which can be repaired. Opening the door while cooking (without first hitting the STOP pad) is the primary cause of door switch failure over time. I have a text file on my site called "doorsw.txt" which helps in diagnosing and repairing door switch problems. You can find the file via a Google search. It will help you check and replace the door switches if you or an able friend is so inclined. In some cases, the problem is a bad connection or a bad relay on the control board. That's something we see fairly often, and we repair them for only $32.50 nationwide.
SOURCE: Vent fan noise
I'd say the bearings are getting dry. I'd hit it with a a drop of 3-in-1 oil or sewing machine oil. If you don't have the owner's manual, you can download one here: http://www.geappliances.com/service_and_support/literature/ It's also possible that the keeper which holds the fan blade assembly may be broken or loose. That could cause the fan to slip and rub. Either way it will have to be disassembled to a degree, probably starting with removal of the grille. Exploded views of this model may be helpful. They can be found at this site: http://www.geappliances.com/shop/prts/ Under 1 select "Repair Part", under 2 select "Microwave" and click "Go". A window will pop up and you'll enter your (complete) model number. Good luck.
SOURCE: Microwave making noise, not heating
Was the noise something like someone growling into a coffee cup?
As odd as that sounds, that's a common sound for a bad magnetron to make, a hollow gurgling or sizzling.
It may be the magnetron, but generally, the most common causes of a failure to heat are:
- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part
If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
You can usually find helpful exploded view diagrams and order parts by entering your FULL model number here: http://www3.sears.com (the 3 is correct)
We're happy to help and we appreciate your thoughtful rating of our answer.
SOURCE: Crackling sound in microwave vent when power is off
By "powered off" can I assume you mean that it is plugged in and at idle, not cooking, just showing the clock?
If so, I'd say your control board is failing.
If my assumption is wrong, please write back with more details.
We regularly repair these control units for
customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.
Feel free to contact me directly (and please remind me of your model number) for more information & help.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
William E. Miller
[email protected]
http://www.microwavedisplay.com
SOURCE: My Microwave oven makes a loud buzzing noise and
Quite
often this is due to grease or food particles stuck somewhere in the
cavity of the oven or stuck on or behind the waveguide cover.
The
waveguide cover (also called a spatter shield) is usually on the right side of the cavity and is about the
size of a playing card and often held in place by a plastic rivet.
In some models it is a
larger stirrer cover type made of thicker plastic in the ceiling of the
oven.
It can be fragile, and
the metal edges of the oven behind it can be sharp, so be careful!
The cover and the metal
behind it should be cleaned with a mild, non-ammonia cleaner.
If your
waveguide cover
is burned, it will need to be replaced.
It provides critical
protection for the magnetron.
Your owner's manual may show you how to remove the cover.
You can download owner's manuals
and installation instructions for Electrolux and Frigidaire
here.
Otherwise, you can find links to helpful exploded view
diagrams and part ordering help
here.
I recommend that you bookmark that
link to your favorites.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
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