Question about Kenmore Microwave Ovens

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Kenmore microwave #721-89941-1490

I was defrosting some beef and all of a sudden I lost power.The breaker is fine and there is power to the outlet.Is there a fuse in it that may have blown? mike

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  • Anonymous Nov 06, 2008

    My Kenmore 721.8915081 stopped working alltogether and will not turn on at all.

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  • 8,820 Answers

There is an internal fuse, plus one or two thermostats or thermal cutouts.

You can probably find an exploded view by entering your FULL model number here: http://www.searspartsdirect.com

There may 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.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

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

Posted on Jun 29, 2008

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1 Answer

My Kenmore elite microwave model 401.88523011 has lost power. The electrical outlet still has power to it. Is there an internal fuse or circuit breaker that may be causing the power outage?


Your microwave has an internal fuse. Usually 10 to 20 amp. You can pick some up at home depot or radio shack. Make sure you get the same amps and volts as the original fuse. Will be printed on your microwave some where usually. And if its one that is part of a double oven deal make sure that you check you're circuit breakers for the kitchen. Good luck.

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Microwave, kenmore 721.89822, will run when powered, but will not cook, no microwaves


HELLO.

Follow some straightforward troubleshooting steps to make your microwave work like new again.

1 Make sure the door is closed. If the door is not closed tight, the microwave will not function.Sometimes food will get stuck in the door and prevent the latch from working. Use the paper towel to get the food out, then close the door carefully and listen for the latch to click.

2 Check the power sources. First, make sure the microwave is plugged in; the plug may have shifted or slipped partway out of the socket. If it is plugged in and still does not work, voltage test the outlet the microwave is plugged into. If you are not getting a reading, the breaker is probably blown. Reset the breaker for that outlet in your home's circuit breaker box.

3 Reset the microwave breaker. Take the back cover of the microwave off with a screwdriver. Inside you will find a motor. Most microwave motors have a small red reset button on them. Hit that button. Your microwave should work again if the breaker was the issue.

Thanks.

Sep 18, 2011 | Kenmore 80822 80823 80824 80829 1500...

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I have a Goldstar Multiwave and have lost the manual. Can you defrost by time rather than weight such an a frozen breakfast sandwich?


You can defrost items by time but not with the Q-Defrost or Auto-Defrost functions. (I've found it best to defrost ground beef with timed intervals at power 1. Auto Defrost by weight usually starts cooking the meat. You will need to try it a few times to see how long and what power to use.)

Manage My Life has the manual here: http://www.managemylife.com/mmh/owner_manuals/52491/GOLDSTAR-Countertop-Microwave-L1005548?brand_name_search=MA1011W . Sears Parts Direct may have a copy that you can order. (I didn't see it listed but didn't check the entire set of parts lists.)

I hope this helps.

Cindy Wells

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How to defrost frozen ground beef with sharp carrossel microvawe oven?


The defrost instructions for ground beef are listed on page 15 of the owner's manual under the "Defrost Center" heading. If you do not have an owner's manual, here is a direct link to one that you can download or print for FREE:

http://www.managemylife.com/mmh/owner_manuals/71305/Sharp-Microwave-Oven-mic_man_R510H?brand_name_search=R-510

Remember to remove any thawed pieces of beef with each stage of defrosting for the best results. If you have any questions, please post back and let me know. I hope this helps you.

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problem is a blow fuse inside the microwave, you need to call a appliance repair tech

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Kenmore Microwave Oven Sudden Power Reduction


I would be sure to check the microwave's outlet under a load.

One good way is to use a toaster or hair dryer for about a minute to see if they run at full power and run without their heating elements dimming.

If the power at the outlet is steady, I would suggest a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If it still fails to heat properly, I would say you have a failing magnetron, and it would just be a coincidence that the failure began after the new wiring was installed.

If you need to order the magnetron, Sears sells it for $73.13, but you can get it for $41.84 here.

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

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I can't figure out the defrost function on my microwave


There should be a lable just inside the door of the microwave telling you what keypad number to hit for poultry, beef and fish then you enter the weight. IE: Push defrost then 1 fpr beef then 2.0 for 2 lbs

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