PS978ST1SS General Electric Range - Instructions

This temperature sensor is very easy to replace. There are two screws inside the oven in the top middle of the back of the oven. Take these off. on the back of the stove there is a metal plate with 5 screws I believe. Take these off with a nut driver. Then you will see a white connector coming from the spot where you took the other screws off. Take the white connector apart and pull out the temperature sensor from the inside of the oven. Then put the new one in.

First I removed the 4 screws that hold the element in place. I then pulled the element out about 3 inches. I removed the sensor and disconnected the connector.

I picked the least expensive and most likely issue with our oven that was not indicating a correct oven temperature. I am sure with a 15+ year appliance that the circuitry is on its way out but wanted to give this a try to avoid a new appliance purchase. Oven pre-heat setting takes much longer to finish with the age of the oven. However, after the new sensor the oven will maintain a more even temperature for the cycle.

Removal of the sensor from the inside of the oven is a bit awkward since it is located between the broiler elements at the back but a nut driver was the correct tool and worked fine. A bit stuck with the heating of the connection but pretty simple to replace. Must remove the back first to uncouple the connector. Simplest part of the repair.

At best a temporary fix for a an appliance this old.

The repair was very easy to do. Our oven was showing the F2 error code, which is associated with an over-temperature fault. Upon inspection, the oven was warm, but definitely not beyond the temperature threshold. I researched the issue and found this temperature sensor.
Swapping the sensor was extremely easy. You take off the back panel of the oven, unhook a single wiring harness, and undo some bolts inside the oven, which allows you to pull off the old sensor. Simply hook up the new sensor to the harness, pull everything back through, replace the fasteners, and you're good to go.

Very easy to remove the parts and to reassemble

I checked various sites on the net and decided that the temperature sensor was the problem. The GE price for the replacement part was about $105, most of the other sites offered the sensor in the $70 range. PartSelect $12.95 When the part arrived, I removed a small self taping screw, pulled the high temperature wire connector into the oven space, disconnected the quick disconnect fitting, attached the new temperature sensor, pushed the connecting wire into its hole, replaced the screw and that was it. I probably saved about $200 in parts and labor over what a local repairman would have charged. Oh yes!! I first disconnected the power at the breaker box. Very important.

Took a picture of the old heating element to make sure that when I replaced the new element the wires were in the exact location as before.

Performed repair using a video for reference.

The logical first choice for replacement was the triple burner assembly since that is subject to failure for obvious reasons. It turned out that the burner assembly was fine by visual inspection and by virtue of a continuity measurement.

The second choice seemed to be the frame relay board and that turned out to be correct. This was an educated guess since it is the "next" component going backwards, it is responsible for distributing the burner voltages, and that relays can have a reasonably high failure rate. This board could be tested but without schematics that seemed like a lot of effort, so I ordered it on a best guess.

Replacement of the board is not too difficult but does require some attention to detail, and patience is required to be sure that all the wires end up in the right place. Needle nose pliers are really helpful here. Take photographs, make a sketch, and label some of the obscure wires with painter's tape. Took about an hour or so.

Took the oven door off and removed the inner door panel, put new glass assembly part in and reassembled. The hard part was getting the door hinges locked back into place.

Part WB30T10126 Triple Haliant Element-12 Inch was returned to you under Returns Reference 15682540. Mailed by USPS Tracking #9505 8161 4647 1005 7628 41. According to USPS, it arrived at your location Friday, Jan. 15, 2021 @ 10:49 AM. Please advise. Thank you, William Deal

Removed screws holding temp sensor, pulled wire out from behind wall until found connector, disconnected old sensor.
Measured resistance of old sensor and compared with new sensor, they measured nearly the same. Installed the new sensor and tested the stove. Came up to temp ok. No problem since, about 2 weeks.

Removed torx screws for door handle as well as torx screws for both hinges to separate the door halves to extract broken glass and to install new glass panel. Other reviews said not to remove hinge screws, however I had no problem reinstalling them.

Sensor is in rear and on top ov oven. What could be a 10" job took 45". My problem was the oven door was diffinately in the way. Also I wear bifocals which makes me tilt head to see nuts. I felt like a contortionist. HINT: remove door and give yourself some room to work.

Pull oven out away from the wall, unplugged from outlet, removed center cover by removing 5 sheet metal screws. disconnected thermostat sensor from control cable. Opened oven door and removed screw that holds thermostat sensor. Pulled thermostat sensor out replaced with new sensor. Plugged sensor in to control cable. Replace panel and screws. Then my wife made me clean the oven. I recommend making the repair when your wife is not home.