91147799201 Kenmore Microwave Oven Combo - Instructions

Turned out the issue was easily solved by replacing a single, inexpensive fuse.

First off, UNPLUG THE MICROWAVE.

The fuse is located under the plastic grill at the top of the microwave. It's held on by two screws. Once you've removed the screws and taken off the plastic grill, you go to the right side of the microwave and remove another screw that holds a small metal grill in place. Removing the small metal grill is probably the toughest part of this repair. You kind of have to rock it back and forth a bit to get it to release. Once that's off, you can get to the fuse. I removed the burnt out one with a pair of needle nose pliers. I also put a small piece of cardboard under the fuse when I did this so I didn't accidentally drop it into the innards of the microwave. I did the same thing when I replaced the new fuse. I then plugged the appliance back in and made sure it worked. Once that was confirmed, I replaced both grills.

Removed six 1/4" hex nuts on rear of oven. Then through front/inside removed a single 1/4" hex nut to actually remove sensor. Unplug sensor connector, remove. Reversed steps, push oven back in place and plugged in. Tested oven function.

Replaced High Voltage Diode. Very carfully due to the extream danger of a electrical shock.

Unplugged appliance and removed 5 screws on back of stove/oven and removed plate. Disconnected the sensor and unscrewed it on the inside of the oven. Pulled the cord through and replaced with new sensor. Replaced all parts and plugged in the appliance and tested. Worked great.

The old fuse is perfectly good. The new ones arrived within a day.

1. Opened door to remove glass dish and plastic rotating wheel.
2. Turned breaker "off" to appliance at main electrical panel.
3. Removed two "star" screws located on side of front control panel.
4. Removed four screws (two top and bottom) from front bezel around the wall mount microwave unit.
5. With bezel removed; removed four screws (two top and bottom) from the frame seecuring the microwave above the conventional oven directly below.
6. Using an inverted laundry basket; slide the microwave unit out approx. 14-16 inches and balance the extended weight on the inverted laundry basket. I opened the oven door and placed the laundry basket on it.....was a good fit!
7. With the side sheet metal now exposed; remove four hex nut screws (black) from unit.
8. Also, swing front control panel open; notice two sheetmetal tabs securing side panel. bend each up to help release side panel.
9. NOTE: The sheet metal enclosure is a shield for the microwave unit. It interlocks around the side cover preventing accidental removal.
10. By removing the four hex screws, you will notice two philips screws toward the rear of the unit. Remove both of these screws and the side panel should come out exposing the magnatron.
11. Uplug the magnatron and light. The light is in a white plastic cover and the magnetron is the main device in the unit. There was a schematic in my unit that helps illustrate each of the locations.
12. NOTE: There are capacitors toward the lower rear of the unit that will remain charged although power is off. Safely dscharge these capacitors or don't service this unit on your own.
13. Remove the magnatron by removing the four philips screws attaching it to the side enclosure.
14. Remove the plastic cover encasing the light by removing three philips screws.
15. NOTE: The replacement magnetron does not include the thermal sensor secured to its case. You must remove this from the old unit or buy a new one. There are two small philips screws securing this in place.
16. Reverse order to install new units.
17. NOTE: there is a gasket on the magnetron (around the hole where the rotating head projects into the cooking chamber. Ensure gasket is properly installed to prevent microwave leakage.
18. Once everything is reinstalled; place glass of water in unit to test. Set controls properly and turn on. Water should be hot per setting.

1) pull out the stove
2) remove the 7 sheet metal screws holding the back panel on. (the panel that also covers where the cord splits and connects to the oven.
3) Find the small plastic connector located in the middle of the back of the range and unplug it.
4) open the front of the oven and remove the one screw holding in the oven temp sensor.
5) replace the sensor and make sure to "feed" the new cord through as best you can.
6) I had to dig through the insulation a little bit to find the new wiring harness
7) connect the wiring harness and put the back of the range back on

note: this was very simple to do if you think this might be the problem don't hesitate to handle this one yourself.

1. turned off electricity -- unplugged the unit 2. removed 3 screws on top of top vent, removed vent screen then I located the little white cylindrical fuse and popped it out with a table knife. Then I popped in the new fuse. Replaced the vent screen and screws -- plugged in the appliance and it is working again.

Removed the glass tray, pulled out the old guide roller and installed the new one. returned tray. could not have been much easier. part arrived fast and was cheaper than other web sites.

Replaced temperature sensor in the oven first ($10 part, always start with least expensive possibility!), but that didn't solve the problem. 5-10 minute repair, not counting moving the range in and out of it's home between cabinets. Next replaced the control board ($90 part) which solved the overheating problem. 15 to 30 minute repair, don't be intimidated by all the wires. Remember to turn off power at the breaker (duh). Order the faceplate graphic ($37 part) because chances are the old one won't peel off cleanly (ours didn't, "I was really careful Honey!!) and the otherwise excellent PartSelect.com website doesn't suggest the part might be needed. Anyway, I saved a minimum of $80 plus Labor by doing it myself. I had the advantage of living about 100 miles from their warehouse and got NEXT DAY delivery from FedEx instead of 3-5 business days. Suggest you order before noon.

Most important: Unplug or turn off the breaker before beginning! (I briefly saw sparks as I removed the old switch.) Look at the replacement switch. The springs on the sides hold the switch in, which means you have to press in these springs to get the old switch out. I slipped a small screwdriver in on the side while I pulled with a small pair of pliers. It's tricky, but it will come out. Once you have the switch out, just unplug the wire in the back, making sure it doesn't fall back in the hole before you get the new switch on. Then, just push the new switch into the hole in the stove and you're done.

Replacing the sensor was a snap and not as involved as I feared. 1) open the oven door; 2) remove the one hex screw holding the old sensor to the back of the oven; 3) gently pull the sensor, pulling the wiring out to access the plastic wire connector (carefully guide the plastic wire connector through the opening); 4) loop a small piece of wire (stiff enough to form a hook) around the base of the wire connector to keep the wire from falling into the back wall of the oven; 5) unclip the connector and remove the bad sensor; 6) clip in the new sensor; 7) remove your catch wire; 8) thread the wiring back through the opening; 9)position the new sensor and secure with the hex screw; and 10) turn on the oven and prove to your wife you do know what you are doing!

This did not fix my problem. I've ordered a new microwave.

First off, UNPLUG THE MICROWAVE.

The fuse is located under the plastic grill at the top of the microwave. It's held on by two screws. Once you've removed the screws and taken off the plastic grill, you go to the right side of the microwave and remove another screw that holds a small metal grill in place. Removing the small metal grill is probably the toughest part of this repair. You kind of have to rock it back and forth a bit to get it to release. Once that's off, you can get to the fuse. I removed the burnt out one with a pair of needle nose pliers. I also put a small piece of cardboard under the fuse when I did this so I didn't accidentally drop it into the innards of the microwave. I did the same thing when I replaced the new fuse. I then plugged the appliance back in and made sure it worked. Once that was confirmed, I replaced both grills.

Cleaned up the broken glass. Ordered the replacement part. Removed the door from the oven. Carried it to a safe place to work on. Disassembled by removing the screws, removed the bad part. Installed the new glass pack and in reverse order of taking apart reassembaled the door. Reinstalled the door on the oven. Now the oven is working again like new.

Went to onlin source, found a couple youtube videos then went to the GE site which had a not-too-easy that find trouble shooting guide. It was extremely helpful as it described a fuse as a fix 80% of the time for touch paid failure. I really didn't believe it would b a fuse, but it was the cheapest fix, $8. I got the fuse and was surprised to fine there are two of them on this model. I took a guess and replaced the top one ( neither fuse was black or burned to indicate a failure but the top one was a bit mor greyish). put it all back together and it works fine.