GE Café CTD90 double wall oven oven temperature is too hot, too cool or uneven

The checks in more detail

An oven thermometer placed in the middle of the rack shows what the cavity really does, and the test needs a full preheat, since the oven is not at temperature when the tone first sounds. Do the test properly. Place an oven thermometer on the center rack, set the oven to 350 degrees Fahrenheit on Bake, and wait at least 20 minutes after the preheat tone; read the thermometer through the glass without opening the door often, since each opening drops the temperature.

Check both ovens separately, because the upper and lower cavities are independent. A reading within about 15 degrees of the setting is normal as the elements cycle on and off. If the difference is bigger and steady, the oven can be adjusted. GE and Café ovens let you offset the temperature in the Settings menu, adding or subtracting a few degrees for each oven. Use the oven-temperature adjustment option, apply the difference you measured, and test again.

Remember that Convection modes lower the target temperature in some recipes and that Air Fry and Convection Roast use different fan patterns, so check which mode you were using. Check also that the door seal is intact and the rack position matches the recipe. If a new adjustment does not help, the temperature sensor or the control may be at fault, and a Café technician can test the sensor's resistance. Quote CTD90DP2NS1 and the serial number.