JES8850BCS Jenn-Air Range - Instructions

Element was sent by buyer, As they recommended, when model of stove given to them. It was upper right rear. When element came. First took off old element. ...Match both element , new element did not look exactly the same, small variation. It did not come on.. I moved old element from left side to right side . Old element worked on both side .. tried new element on left side also.. still didn't work.. so I called right away and explained.. new element did not work.. not defective, but, just wasn't the right one.. I had a specialist came and check it out also. I was told wrong element.

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.

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.

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

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

Watch the video. Spot on instructions. Easy peasy.

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.

Turned off breakers to oven. Removed two screws that held oven in cabinet. Removed oven door by opening slightly and pulling up on door. Pulled oven out 1/3 of way. Took out four screws on top of control panel. Took oven light switch off by unscrewing holding ring. Removed temp knob on right by pulling. Removed start / stop knob same way.Removed glass straight out. Removed four screws that held elecrtonic clock conrtol board. Unpluged three wire plug from right side and the nine wire plug from the left side. Worked board out at and angle. Went backwards to connect and replace board, screws and door.Slid oven back in and tested oven after turning breakers back on, worked like new.

Took screws out of the back on the side the sensor was on, unplugged it & took out the two screws on the inside of the oven to release the sensor. Put new sensor in place with the two screws & used one of the adapters to plug in the new sensor. Put screws back in the back panel & turned on the oven which unfortunately is still 50 degrees low. Need a new clock with computer which is out of stock & unavailable. I was an electrician for 25 years so didn't experience any problems. It was a cheap thing to try.

Got a bent metal coathook to temporarily release the oven door, removed the screws from the old probe, inserted the new one, and hooked it up, using the one of the plug adapters provided. Problem solved! The oven door latch was now disengaged, the oven would now accept temperature inputs, and the rear cooling fan (which wouldn't shut off) now turned off. That's a lot of things working better for less than $50!

Access to burner nothing like on-line videos:

1) Remove 4 screws under front control panel. (Oven door needs to be open.)
2) Remove 2 flat head screws on sides of control panel. This will loosen control panel. Capture control panel to keep from hanging from wires/connectors. I used hooks made from a wire hanger.
3) Remove 2 screws to remove two steel panels on either side of stove.
4) Remove rear screw of the 2 front screws now exposed and 2 rear screws near top of stove.
5) Carefully flip over glass top being careful not to pull on the wires.
6) Identify burner to be replaced. Note 2 numbers where two clamps are attached to burner.
7) Using 3/8” nut driver, remove screws to allow removal of burner. Remove wires per included instructions. Remove burner.
8) Place new burner under clamps and align to the holes by the two numbers noted in step 6 above.
9) Connect wires to new burner as per included instructions.
10) Reverse removal steps.

Shut off power to the range at the circuit breaker. Remove 2 Phillips screws at either end of the front panel on the L and R side. Open the oven door and remove 4 hex head screws under the panel. Lift up the panel and pull it forward gently. It slips out and hangs on all the wires connecting it to the stove. Unscrew the 4 Phillips screws holding the control panel frame in place. Take pictures of the back of the control board that show clearly the position of the 11 plugs inserted in the board. Gently remove each of the plugs either by pinching open the connector or simply wiggling it out. Insert each plug into the new control panel. This is relatively easy, since the plugs are color coded, differently shaped, and held in the correct position by their wires. Nevertheless after finishing check compliance with the pictures you took. Screw the new panel in place with the 4 Phillips screws. Reinstall the panel, turn on the power, and reset the clock.

1)Pushed the new knob on to the stem of the stove.
2)Walk away
3)Go back to what you were doing
Time required-45 seconds-1 1/2 minutes

Extremely simple repair to make. Move stove away from wall and disconnect power. Remove the oven racks. Remove the rear sheet metal panel covering the wiring harnesses. Caution: Sharp edges and corners on sheet metal.Sensor is located in upper left corner on rear oven wall. Using a long-shafted #2 Philips screwdriver, remove the two Philips head screws and gently pull the sensor 1" away from the oven wall. At this point, it will help to have an assist from someone while you are behind the range. Have the assistant gently tug on the sensor while you watch for wires moving on the rear of the range. After locating the sensor wires, gently disconnect the plastic connector clip. Note: plastic connectors become brittle with age and exposure to heat Move to front of range and gently remove sensor from rear wall by pulling the wiring through the oven wall. Before inserting the new sensor wire through the oven wall, "dry fit" the wiring connectors to see that the new sensor is a correct connection. Make connection, and secure the sensor to the rear oven wall with the two screws. Install racks, reinstall rear sheet metal panel, and connect the power. Set the oven baking temperature to a moderately low temp, 300 - 350 deg. to test the new sensor.