JES9900BCS21 Jenn-Air Range - Instructions

Shut off breaker, assure zero energy. Using phillips screwdriver remove old element, unplug wires from element. Reconnect wires to new element, secure screws. Assure all tools removed and people are clear before re-energizing power to range. I was not happy with the packaging, the new element came in a box with no protective packing material!

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!

took the old one out (two phillips head screws)and put the new one in. done. took about 5-6 minutes.

I removed all the screws that held the trim and inner frame to the outside window unit first. Then, I removed a protective glass from over the two inner panes. Next after removing the frame that held the two inner glass panes together, I took the broken inner glass pane out and replaced it with the new one. Then basically I just retraced my steps and had the door put back together in about 45 minutes. You just need to pay close attention to your disassembly so that you are able to put the pieces back together quickly.

replacement was very easy, took 5 min

unplug and plug in new

The entire "project" took me less than 3 minutes, and required no tools at all! First, the saleswoman over the phone pointed me to the correct product for my problem ($30 less than what I thought I needed), and it arrived at my home within 4 days. Then, it was just a matter of pulling off the old gasket, and snapping the new one in place! Simple!

Followed clear instructions provided with stove top.

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.

I switched the oven sensor easily enough, but it did not remedy the problem, so we are in the process of replacing the oven since it's about 20 yrs. old.

Verified via ohmmeter that one of the two burners was open and not working. I also tested the switch and that appeared to be working okay. I then took out the old unit and compared it to the new one, and found that they upgraded the new unit. I followed the instructions to match the labeled parts and move the wire to the newer location of that. i.e the old one had 2B and 2A at the top and 1B and 1A at the bottom. The new one had 2B and 1B at the top and 2A and 1A at the bottom. It did come with wire extenders and insulated tubes on top of them, and extra to cover additional. After a couple of tries, I decided which wire I needed to use on which (small connectors to match small, and large to match large.) In a second try I decided to flip it over to have it face up instead of down. Overall, it worked out very well, and I was very pleased when I did the power up test and everything worked as desired.

Watch the video. Spot on instructions. Easy peasy.

Remove the door.
Remove screws
Clear out broken glass. Vacuum out small glass shards.
Clean all glass.
Reattach all parts.
Replace the door.
Smile!

Removed the two screws holding the sensor to the rear oven wall. pulled out sensor wire. It was caught on other wires behind the oven. removed the three screws holding the 8" inspection plate in the center of the rear panel. Carefully move the insulation and reach in to grasp the back end of the sensor wire. Once free from the snag it easily pulls out with the sensor just as stated in the video. using the appropriate adaptor it was easy to re-asseble and and attach to the oven wall. Replace the rear panel with the three screws and it was done

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.