Question about Frigidaire FMV156DC Microwave Oven
Everything on the microwave seems to be working fine except it will not heat on any function.
SOURCE: Where is the fuse?
It won't be the fuse. If the fuse were out, it would be completely dead.
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, linked 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://tinyurl.com/gv383
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Nov 28, 2007
This is just a preliminary reply. We will need more information to help you.
So you're saying you can set the cooking time but when you press Start it won't start?
If this is the case, you probably have a bad door swithc or door switch mount.
Please reply back with more detail so we can help you.
Posted on Dec 07, 2007
It has a bad magnetron. This is the tube that provides the microwaves to heat the food. Not too easy to replace yourself but it can be done. Cost of magnetron is probably less than $50 or $60.
Posted on Dec 14, 2007
Hi,It is most likely the magnetron and diode that has to be replaced. This job should be done by a tech, High voltage. Magnetron's normally have a five year warranty, check your owners manual.
Posted on Mar 20, 2009
The problem of not heating is most likely the door interlock switch. The 'primary' one goes bad the most often. On some microwaves all the interlock switches are in a cluster and must be replaced together and on other microwaves the switches are individual micro switches.
Posted on Oct 17, 2009
Testimonial: "thanks, this is a very good starting place in the process of trying to fix my microwave"
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