the paint is starting to burn on the inside of my microwave

[T]

The paint on the inside of my microwave oven is starting to burn. I am getting lots of brown spots.

Do I care? Smells a little electrical after a long cook.

[Diesel]

Er...How long is a long cook?

I'd recommend you keep an eye on it as it cooks for you. And, in the event it smokes or catches fire outside of the cooking area, UNPLUG it before you attempt to do anything else with it. I know that should be common knowledge, but, you wouldn't believe how many people I've encountered who've been shocked and/or badly burnt for attempting to put an electrical fire out without cutting the power first.

If you can't unplug it in a hurry, make sure you can get to the breaker box quickly and know which breaker it is that runs it. In fact, it probably wouldn't hurt to find out which one it is ahead of time. And, mark it accordingly.

[T]

9 minutes

Though of that already. I turned the outlet it plugs into, into a switched outlet. I even flip if off at night as there are reports of microwave flaming out when you are not around to watch them. Cheap Chinese Crap.

[Diesel]

Sweet. I've done that for a few circuits I run here...

Yep. Sadly, I've seen this happen. While I can't be certain, I have seen a few cases (autopsy) of the smaller transformer burning up that runs the circuit board. It heats up enough to smoke and/or catch fire, but the condition isn't a short circuit or heavy pull, so the safety fuse doesn't pop. :( When I tore one of them apart, it looked to me like the secondary windings had been failing for awhile and finally enough insulation was gone that it turned into a small heating element and burnt up the surrounding plastic. Not sure why it didn't screw the primary winding enough to cause a short that should have blown the fuse, but, it didn't. May have had the issue been left unattended long enough, but, by then a risk of an actual fire was increasing...

[T]

Do you have a favorite brand that is reliable? 10 years would be nice.

[Diesel]

[snip]

I used too, some years ago. But, not anymore. If you get two/three years out of one that's used a lot, you're doing good. Stuff is made cheap and intended to be disposable now. :(

[T]

I have a saying in my business that I do not follow:

The memory of the joy over the low price long outlasts the memory of the anger over the poor quality

Fortunately, I have a lot of customer's that don't follow that either.

[Frank]

Watching thread, I wonder if it is just rust spots. We get them from too much moisture accumulating. Harmless but annoying.

[Diesel]

Sadly, even if you buy the more expensive ones (expecting they would be better built/last longer) it's just not usually so anymore, depending of course what you're buying. There are some exceptions.

I tend to do whatever the customer wants done, if it's possible and within reason.

[T]

You may be right. I wonder if the rust is absorbing too many microwaves, decreasing the efficiency and overheat the unit

[gregz]

Get a stainless steel microwave.

Greg

[Wayne Boatwright]

On Sun 09 Jul 2017 12:09:18a, gregz told us...

We had a Panasonic microwave for over 10 years that I believe was coated inside with an epoxy finish. We never had a problem with the interior finish and it requently got considerable moisture. We used it multiple times a day. If the movers hadn't broken it, we'd probably still have it. We replaced it with another Panasonic.

[T]

Who makes one? And does it fall apart in a year or two?