Kbms1454sss slow heating

The microwave burnt it. It will be a bit of trial and error with using your new microwave and will also depend (in this case) the brand of pop corn you've cooking. Check the recommendations on the pop corn packaging for time and heat range. Happy popping!

Most M/W use an estimated setting based on ounces of corn. I've found that many do not tell you how much is in each bag. The bags usually have no size markings. Check the face of the box for something like "2 each 3 oz bags".
* Try to use a normal re-heat setting (at full power) and cook a bag using the a minute longer than the recommended setting. Listen to the popping sounds and stop the M/W when the pops slow to 3-4 seconds. (2-3 seconds with 'Kettle' corn) Note the time lapsed and this is your correct setting. You may try the popcorn menu to find a similar setting but really your best bet is to use the method above as it's the most accurate.
* Note; Old or stale corn will not all pop (it dries out as it gets older and there is not enough moisture in the kernnal to steam pop.)
* M/W varies from model to model and brand to brand. Only way to check is to try several settings to get the best results.
* Pop corn brands vary in quality. You will find the better name brands pop more.
* Once you find a good popping brand then stick to that size and brand. (unless they change it on you.)
* If your really stuck on getting every corn kern popped then go with an air popper. It won't come out of cooker till it pops.

Good movie, don't forget the goobers, milk duds, frosty...
Aloha, ukeboy57

Sounds like the magnetron is over heating. Try putting a 4 0z cup of water in the oven along side the popcorn bag. See if this helps. Usually, the oven only runs 2 to 2.5 minutes for a bag of popcorn. You may have to experiment with the slightly different cooking time...

It varies with the wattage of the microwave and the brand of popcorn, to a lesser extent. Generally, higher wattage machines take between 3 and 3.5 minutes. The best way to do it is to let it pop until the popping slows down considerably, then stop. Remove the bag immediately, shake and then open, releasing the steam so the popcorn won't be tough.
Enjoy!

--W/D--

Always place the bag of popcorn on an upside-down paper plate.

This allows more microwaves to penetrate the bag from the bottom.

Also always place food of any kind in the microwave off-center on the tray, NOT in the middle of the tray.

Not only does it cook more evenly (think of how you stir liquid) but it also prevent the same spot from being heated repeatedly on the glass turntable, which can lead to overheating and breakage.

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

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101
sdgthg

Placing the bag on an inverted glass bowl or pyrex casserole dish worked!!!!!  For 2 years, I have cursed my Dacor microwave for its inability to make popcorn (burns a hole in the bag, bag stays flat, almost no kernels pop, etc...)  I read the last suggestion to use the glass plate and I am now sitting with a bowl full of perfectly popped popcorn - with only 1 kernel unpopped.  The metal tray in the microwave conducts too many waves through the bag I guess.
Thanks for the solution!

use Orville Rickenbacker ah you know who lol set it for five minutes when you hear it slow take it out works for me no the oven don't need repair popcorn's tough the best way i know to make popcorn is an electric skillet yum yum

The cooling fan is a must!

Otherwise, the magnetron will be ruined, and that drives up the repair cost.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can order parts here: https://www.mcappliance.com/partorder.aspx

To contact Magic Chef about getting an *authorized* servicer, see: http://www.mcappliance.com/contactus/contactus.asp

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

We had the same problem with our brand new Magic Chef. Before going through the trouble of taking it back I called Home Depot. After talking to a Home Depot Rep I am told that the overheat sensor is under the glass plate directly beneath the popcorn bag. Popcorn gets very hot and the heat of the popcorn causes the sensor to shut the machine down. I would imagine this would be the same for a baked potato.
Very poor design.
I was told to put a microwave safe plate down and put the popcorn bag on it. This should help to reduce the heat and not trip the sensor.
A safety sensor is great, but not if it keeps tripping the machine and shutting down!