My Kenmore Microwave 721.80513 stopped working. It is only 3 years old. Power is working. We think it is a Fuse. We cannot find where the fuse is. Anyone know?

has an internal fuse. but you need to find out why it has blown, has it been making any funny sounds while cooking. ??

I would go ahead and replace the microwave oven the cost to repair will be higher than what you are thinking of getting.

I just had same problem happen on a Kenmore Model 721.89940490. I took off top panel and control panel. Behind control panel is a ceramic fuse. I pullud it out and checked with my mutimeter for continunity and it is blown. Since it is 20 years old I will get a new fuse and replace it. If it works good, if not I will have to go buy a new one to put under the cabinet. My contractor that built my house in 1994 directed wired it but I\'ll spend a little extra and put a plug in the cabinet, if I have to replace it. I suspect I won\'t but there is still that possibility.

You have to open it up and see if you can find the power fuse, usually a BUSS 15amp Slo Blo that protects the Microwave Tube from drawing too much current and causing a fire. These fuses degrade over time or some get through that are not quite 15 amps and blow.

Check the fuse inside the cabinet on the floor near where the power comes in.

replace the fuse see if it blows again you can get those at radio shack 250 volt either 15 or 20 amp get 3 or 4 of em

make sure you have the oven plugged into a designated outlet...what I mean by that is...the outlet your plugging your oven into must be wired right to the fuse box by itself...because the oven will take most of the power from that one fuse for itself...also make sure the fuse is rated for what the oven needs....on the back of the oven, it will tell you how much current it takes...(???Amps), if it says 12 amps for example...the fuse should be 15 amps...if its lower that 12...it will keep blowing....if all of what I said check out then your oven has developed a short circuit...most likely the high voltage diode or magnetron....have it serviced....

Sorry but if the fuse is good your out of luck. but ck. the fuse first. best reguards DFD

I think it may be an internal fuse or a fusible link. You also have a series of contacts and switches inside that are set in place by the mfr. for safety. You could get it repaired for 50-75 dollars or a new one for 125-150 dollars. If you have checked the internal fuse, then just get a new one if the other one is older than 3-4 years.

Microwaves use a special ceramic fuse that has probably been popped by the outage. You have to take the cover off and it looks just like the regular cylindrical glass fuse except this one is white instead of clear. I think radio shack has them. Hopefully the fuse stopped the power surge before it got the front panel controls.