WM2780B Jenn-Air Microwave Oven Combo - Instructions

Removed the approximatly 10 screws that hold on both the upper and lower pieces of sheet metal that cover the back of the oven. Removed the screw holding in the temp sensor. Unplugged and removed the old sensor. Plugged in and installed the new sensor (using one of the included adapter wires supplied with the sensor). Put the 2 pieces of sheet metal back on and plugged in the oven.

First I removed the four torx screws that hold the element in place. I then pulled the element out about 3 inches and disconnected the two wires.
Then I installed the new element in reverse order. Recycled the cardboard box and the old element.

Removed two screws near the hinges and removed door and laid it on counter.
As we removed screws from each part of the door, we stacked the parts in the order removed. Tossed screws into a shallow pan for safekeeping.
Removed old seal and put new one in its place.
Reassembled parts in reverse order as I cleaned each one.
Put door back on the hinges and the job was done.
Would have been a much quicker job, but door had 24 years of dribbles down in it, and needed a good cleaning.

We ordered a new element also, as the old one had blown up. Very gratifying to know there were still parts for my favorite old range.

unplugged oven. removed 2 screws that hold the sensor in place, then removed the dozen or so screws that hold on the rear panel, unplugged sensor and fed wire through insulation. identified and installed correct harness adapter then fed new wire and connecter through insulation and connected to adapter. installed sensor retaining screws.plugged oven back in and tested function.no dice. unplugged oven once again. removed oven control panel and upon inspection of printed circuit board discovered 3 solder joints had failed. dang. resoldered failed joints and also sweetened up a few others that looked suspect. reinstalled controller, replaced all retaining hardware, and plugged in the oven. tah-dah!! works like a charm now. moral of the story is check the pc board first and save $50 for unneeded pats!!! or buy the controller from parts direct for $260ish. btw a roll of solder and soldering iron from an auto parts store cost around $10, learned to solder on you-tube $0. amazing all the home appliances yo can fix if you're not afraid to take a few screws out and poke around a bit. CHEERS!

Removed the ice brucket,
Removed the light shield by releasing one screw using a nutdriver.
Replacing the bulb and reinstalled the light shield.

Your web site is one of the best and most helpfull service sites I ever used. Just wish that in the future you will ship parts overseas.

I removed the bad element - two screws, and tested it on my meter as recommended. The test meter showed it was bad, so I ordered a replacement element from PartSelect. I did check getting a part from a local dealer, and it would have been $10 more. The help and recommendations I recieved on the PartSelect repair forum make it easy.

Terry Hausler

My wife removed old element and replaced new element by removing and rescrewing 2 screws and detaching and retaching 2 wires to thr respective elements in about 5-10 minutes.

The sensor is mounted in the top right side of the oven.An extra long screw driver helps to avoid damage to the sensor when replacing it.The connectors were the opposite to the old sensor and I did not see that there were adapter cables included. It might help to connect or tie these together as I only expected the sensor and did not look for adapters.I had cut the wires and used wire nuts when I found the adapters.The repairs works fine.
Mike

First removed the 4 screws on top of the display panel pulled the panel off to access the circuit board, then removed the( 3) wire / pin connections and (1) flat wire, then removed the (4) nuts holding the circuit board in place,removed the old circuit board (Timer) and installed the new circuit board,connected the (3) wire / pin connections and flat wire, reinstalled the display panel......voila,back in business. Probably should of tripped the circuit breaker but did not get shocked.
The hard part was in determining that the Electronic Timer (circuit board) needed replacing.

First I called a repairman and left a message. That was 3 weeks ago. So, I 'googled' the error message and determined what part I thought I needed. Ordered the part on Wednesday evening and it was there when I got home from work on Friday. I unpacked the part, got a phillips screwdriver and then watched the repair video on your website. About 20 minutes later I pushed my stove back in place and the flashing said 'set time'. Then I checked both ovens, and have since used both, and everything works!!

removed old socket and replaced.
I was VERY pleased with Partselect. Easy to find part, it was in stock and fast delivery.

The heating element is held in place by two phillips screws which were rusted fairly tight, visible at the back of the oven. I tapped my screwdriver with a hammer as I loosened them. (I would have used liquid wrench if the hammer did not work) Two wires are fastened to the element by two clips that you can slide off by hand. Slip the wires off the old element and onto the new element and install the two screws and you are done.

The video indicating •unscrew old sensor, •pull wiring, •unplug old sensor, and •plug in replacement was good until I pulled the old one and saw wire nuts behind the small square hole! After some research, I learned that the nuts COULD come through that small hole with use of needle nose pliers. One of the wire nuts had the edges pinched off (chipped) in the process. Then I learned about ceramic wire nuts, which I'd never previously encountered. Very important if you don't want to melt your nuts! I cut and stripped the end of a disconnect plug to the stove wiring and now I have a plug in place; which, hopefully, I'll never need to use.

Much to my horror, what was described as a simple, 15-minute replacement, took 3 days! In order to replace the oven door gasket, I had to disassemble the entire door. Every photo I saw of the gasket showed it as a flexible part: gently pull out the old one and push in the new. What I received in my order had a frame. In order to replace it, I needed to unscrew the door parts. Unfortunately, I made a few rookie errors, primarily because I kept thinking the next screw would release the gasket frame. So I neglected to keep track of the screws I removed, and I didn’t take any photos!
I must have used half a roll of masking tape to keep parts together; I did not have 5 hands! When I released everything and nestled in the frame, I had even more trouble replacing all the screws I took out. The majority of holes did not line up. So I just did the best I could, put in as many screws as I could. But after three days of working, I finally finished. It all held together, and the door did what it was designed to do. Really a repair horror. And I am not an incompetent novice!

Left oven off. Located sensor in pdf manual. Unscrewed mount, pulled sensor out to access connector. Disconnected old sensor, checked continuity(resistance) on ohms with multimeter. No continuity; connected new sensor, screwed mount back into place, turned on oven and baked cookies to check operation & it worked perfectly.