Sharp R-8425LM making loud humming noise and defrost not working can you help please

SOURCE: loud humming/no heating

ck door swicth

SOURCE: LOUD HUMMING NOISE

Here's my thoughts:

Make sure it is level.

Could be some things inside the fridge vibrating against each other.


Geno

William Miller

• 9179 Answers
• Posted on Jul 28, 2008

SOURCE: Microwave makes loud noise and does not heat. Smell of light burning

Chances are you have a bad magnetron.

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

If you or someone you know 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.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

We're happy to help you and we'd appreciate your thoughtful rating of our answer.

Tim martin

• 100 Answers
• Posted on Sep 06, 2008

SOURCE: Makes a loud humming sound and blows fuse behind controll panel

Most likely a shorted capacitor is causing the fuse to blow. Easy and cheap to fix.
Check with www.martinmicrowave.com or call toll free 1-877-894-0035 for parts info

SOURCE: loud humming noise

If all of your door switches check out, replace the magnatron, capacitor, and diodes.