Frequently Asked Questions
•How do I test the oven temperature sensor with a multimeter?
Disconnect power to the oven. Locate the oven temperature sensor, usually at the rear of the oven cavity. Disconnect the sensor wires and set your multimeter to measure resistance (Ohms). Refer to the oven's service manual for the correct resistance value at a specific temperature (typically around 1080-1100 ohms at 75°F). If the measured resistance is significantly different, replace the sensor.
•What if the bake element looks fine but still isn't heating properly?
Even if the bake element appears intact, it can still be faulty. Use a multimeter to measure the resistance across the element terminals after disconnecting power. If the resistance is outside the specified range (typically 15-40 ohms) or reads 'open,' replace the element. Also, check the voltage at the element terminals when the oven is turned on. You should measure approximately 240V AC (or 120V AC, depending on your model) if the element is receiving power.
•How do I adjust the oven temperature calibration on my Roper oven?
The procedure varies by model, but generally involves entering a service mode through a sequence of button presses on the control panel. Typically, you would press and hold the 'Bake' and 'Broil' buttons simultaneously for several seconds. Then use the '+' and '-' buttons to adjust the temperature offset in 5-degree increments (usually +/- 35 degrees Fahrenheit). Consult your owner's manual for the precise steps for your specific model.