GE Advantium 120 Convection/Microwave Oven "heating pad wont work high" Questions

...pad and timer shows its on but wont heat. any suggestions thanks Is there any unusual noise or is it louder or quieter than normal? A loud buzz, hum, or groan is usually a shorted high voltage ...

...heating element. This would cause the oven to not heat correctly. If the thermostat bulb is not dislodged, it's likely that the thermostat or sensor is either mis-calibrated or defective. Electronic ...