20 Most Recent Kenmore 30" Microwave Combination 721.85033111 Questions & Answers

Most over the range microwaves have a heat safety system built into them. If for instance you are cooking on the stove top for a long period of time on the burner directly under the micro control panel and the control panel get too hot, a thermostat in the microwave will automatically turn on the vent fan to help keep the control panel cooled off. My guess is that the safety thermostat (usually right behind the bottom of the control panel) may be going bad and needs replaced.

this needs to be serviced by a qualified repair tech there are voltages inside even after unplugged, these voltages can hurt you

A microwave is not a good candidate for novice repair. However, since it isn't completely dead, the power circuit is likely intact (not a blown fuse). The major components involved are the capacitor and the magnitron. The cheapest is the capacitor. If you have to replace the magnitron, it is not likely economically feasable. Be careful of the cap - it contains energy even when unplugged!

It doesn't matter some are some are not vented to the outside, if you have a vent already set up then use it....

It turns itself on

1. Interlock switch If your microwave is turning itself on, the first thing to check is the interlock switch. This is usually the first thing to malfunction that could cause this issue. If the interlock switch is bad then it will need to be replaced.
2. Main control board If your microwave is turning itself on and the interlock switch is still working, the probable cause is the main control board. If the control board is defective it will need to be replaced.

But before throwing parts at it give these folks a call... https://www.repairclinic.com/RepairHelp/How-To-Fix-A-Microwave/74-6-878350-/New/Kenmore-Microwave-Turns-On-By-Itself-721-85033010 Best to you

It looks like it is too old. Nothing in Kenmore or Viking. https://www.google.com/search?q=Kenmore+Viking+851.8250800+manual ..

You've found the proper location if you're seeking for the fuse for your Kenmore microwave. The fuse is often found in the microwave's or behind the control panel. You must take off the microwave's exterior cover in order to reach it. After you've identified the fuse, you may see if it has blown. If so, you'll have to swap it out for a new one. It might be preferable to seek professional advice if you are unsure on how to proceed.

If you are getting an F-5 error code on your Kenmore hood combination, it typically indicates a problem with the temperature sensor. This error code may occur when you are trying to use the convection feature, as you have described.

To troubleshoot this issue, try the following steps:

Turn off the power to the unit and unplug it from the electrical outlet.

Wait a few minutes, then plug the unit back in and turn on the power.

Try using the convection feature again and see if the error code reappears.

If the error code persists, you may need to replace the temperature sensor. You can consult the user manual for your Kenmore hood combination or contact Kenmore customer service for assistance with this.

If the unit is still under warranty, it's recommended to contact Kenmore customer service for repair or replacement options.

These are all the top suppliers, but that model number is not showing. If the display has gone dim, you can get an electronics technician to replace the capacitor that runs the display. https://www.google.com/search?q=Kenmore+Microwave+318279601B+parts ..

It sounds like you may be experiencing an issue with your Kenmore stove's timer function. Here are a few steps you can try to resolve this issue:

Check the timer settings to make sure that the correct time and alarm settings have been entered.

Try resetting the timer by turning it off and back on again, or unplugging the stove and waiting a few minutes before plugging it back in.

Make sure that there are no buttons or knobs stuck on the stove, as this could cause the timer to activate repeatedly.

If these steps do not resolve the issue, it may be necessary to contact a professional appliance repair service for further assistance.

Question edited for spelling of Kenmore and typos. Question moved from Kenmore Washing Machines. All about repairing microwave ovens https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..