W2780B-C Jenn-Air Wall Oven - Instructions

Oven sensor replacement was easy. Thermistor was installed in less than 15 minutes. After installation STILL had "F3" error message. Harness was ok, "Clock" or ECU needed to be replaced. "Computer" is obsolete, no spares available, some companies will rebuilt for $400+. Since the stove was going to the landfill I had nothing to lose by taking the "Clock" apart. It has one chip that is probably the power supply and control chip, another chip is an EEPROM with 128 bytes of storage and the last is a darlington chip that controls the relays. Cleaned up everything that looked like it needed cleaning with alcohol. When I reassembled the unit the pins for the thermistor harness felt loose, so I took it apart, again, and found cold solder joints on all four pins. It must have been there all along but plugging and unplugging the harness finally broke out the solder so I could see it. Soldered the pins back in and now it all works. It's worth a try if you're getting the "F3" message. If the relays on your stove aren't working it would be a good idea to replace the darlington chip. Good luck.

Spoke to your very helpful staff, who advised me that a likely problem was the oven sensor. I took a chance and ordered the part, which came promptly. Your service video for the part was most helpful in my decision to try the part. Installation was a breeze, but it was the oven controller board that had failed and not the oven sensor. That called for a service professional, who ultimately fixed the problem. Your service though, was excellent and I would highly recommend you to others.

After trying to set the bake temp after the self cleaning, it would not heat up. I Googled the model number,selected your link because it mentioned my symptom,and said usually it is the temp sensor in the oven that gets damaged by the high self cleaning heat. Your site had a place to enter my model number. You provided a great exploded view of the parts, showing me my sensor,then you provided the part number of the kit i needed,and filled out the order form with payment method. Less than a week later I got my part with instructions. Your video showed me the two screws I remove from the front ,and I pulled the old part out and uplugged it's connector. Replacement was easy, and oven was fixed! Thank you for a great site! You held my hand through it all!

Flipped off breaker and removed oven door and pulled built in stove out so the back panel could be removed. Unplugged the sensor then removed the two screws securing the old sensor inside the oven and installed new sensor. Put stove back together and installed back into counter top, re-installed oven door, flipped on the breaker and oven works like new.

Replaced the long Oven Sensor but have not resolved the root problem. Oven still will not reach required temperature. Bottom element becomes red hot, but turns off and will not start again.

Removed the original element with a screwdriver and disconnected the 2 wires, it took about 2 minutes. Got online with PartSelect and easily matched a replacement part. Ordered the part and received it within a couple of days. Very impressed with the ease and quickness of the order processing and shipping. Took the new element and connected the wires, screwed the 2 screws back in, it took about 2 minutes. Turned on the oven to check and everything worked perfectly. Very happy with the overall experience with PartSelect. Thanks!

First, I tripped the oven circuit breaker. Then I removed the two screws that hold the element in place. Then I pulled the element out about 5 inches and disconnected the two wires. At first, I had to figure out how the wires would disconnect. Once I removed the heating element, I reversed the procedure, tightened the screws, reset the circuit breaker, and set the oven to bake. The element began to function, and I knew Imy efforts were successful.

repair was simple two screws

Checked the element to see if it was open or no
resistance, it was open
e.g. First I removed the two screws that hold the element in place. I then pulled the element out about 3 inches and disconnected the two wires...)

Had to remove oven from mounting cabinet to get to the back since the wire lenght to the conector was to short to come through the mounting hole.
Other than that the repair was straight forward. 4 screws to dismount the Oven from cabinet, 2 screws to remove Sensor and 3 srews to open the back of the oven once out in the open. New cable adapter that came with the new sensor was needed in my case.

Very easy to repair, but you have to be able to pull your stove out. Two screws in the oven and then remove part of back cover of oven and one plug from there. Simple to do, but did not fix our problem. We are waiting repair now from service company as it looks like it needs a control panel. Worth trying yourself to fix the problem. Inexpensive part and easy to install. Also be sure to turn power off your oven to reset the control panel as this may fix the problem - try this first and also after installing new part - like rebooting a computer...

Received the new one. Installed it in 15 minutes. Thanks for the fast service.I will buy from you guys the next time I need a part ! Thank You, Henry

It would have been a very easy job if the one wire had not fallen inot the back. I could not reach it and fried to figure out how to get in the back to no avail. Finally I took a piece of wire coat hangerm and bent it and then fished it out. The packing around the hole compressed while I was trying to get the wire and I thought I wpuld have to replace it, but overnight it resumed its original size. It should have probably taken less than thirty minutes.

Removed the oven from the wall. Removed back cover and unplugged sensor from the harness. Remove and replace sensor from inside the oven. Reconnect harness and reinstall back cover. Secure oven back into the wall.

takes two people to put the oven door back in place but otherwise very simple as long as you keep all your screws and pads in place