Mark for Model Number JB900WDWW My 14 year old GE Profile Spectra convection oven is not heating up properly. When on convection bake, it says it's up to temperature but things bake noticeably more slowly than they used to. If it's heated up and we turn off the convection bake and switch to convection roast, the oven temperature reads colder than it just did on convection bake by 30 - 40 degrees. It is also having the same kind of problem on bake, but not as great a difference (off by 10 degrees when we switch to roast). I did a resistance check on the oven sensor assembly (WB21T10007) and it shows 1105 Ohms. I'm not sure what to try next.
Answer Mark, The oven temp. sensor WB21X22134 Is a great place to start. It is not uncommon for sensor resistance to be in range at room temperature , and become erratic at the higher temperatures, especially after a self clean cycle. When you cancel a cycle and reprogram another, The display will show the actual oven temperature based on the sensor input. Replace the sensor, and check for an average oven bake temperature and calibrate the control. The temperatures in convection bake or roast are automatically lowered by the control, so you'll get a slightly lower temperature (25 dgrs. less) when used on the convection settings. Read More... Answered by AppliancePartsPros.com | Monday, April 13, 2015