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Howard
November 21, 2025
The oven heats, but the temperature is not showing on the display. It say preheating, but just shows 100. The oven gets really hot.
For model number ZET1PM3SS
Hi Howard, thank you for the question. The issue seems to be with the temperature sensor, part number PS236398. You may need to replace it to fix the issue. We hope this solves your problem!
I had to remove the oven from the wall because the sensor plug connction is behind the unit. Two screws hold the sensor inside the oven and then I disconnected the lead and pulled the sensor out from the front. I installed the new sensor, tightened the two screws holding it in and connected the lead. Then reinstalled the oven into the wall. Overall, a very easy repair once you get the oven out.
Removed the oven door for easy acces to oven. Unscrewed (philips screwdriver) the screw holding temp sensor in place. Gently pulled the wiring until quick connector was located. Pushed down on locking level on quick connect while holding other end of wiring (so wiring would not fall back behind oven). Connected the new sensor and screwed back in place. Reinstalled oven door. Tested temperature settings by turning on oven and comparing with a separate oven thermometer.
After reviewing the potential causes for the error code, I decided I'd try to change out the temp sensor. Using the ohmeter, I saw the difference immediately between the old and new sensor. The sensor is accessed from the back of the stove, and must be slide out to gain access to the rear panel. Since the stove I have is a built in, removing the stove and the access panel was the hardest part of this repair. Resetting the glass control panel was also a bit tricky to calibrate the touch sensitive buttons. Good luck.
