The upper oven will heat to desired temp (say 350) and then after 10-15 minutes begin to lose temperature. Typically gets down to 200 or so then begins to reheat. Will get back to 250-260 and then stop heating again.

Oven temperature sensor works with some Bosch, Thermador, and Gaggenau models of stoves / ovens / ranges. This is a genuine OEM part that works for some 

This temperature sensor (part number 00630873) is for wall ovens. Temperature sensor 00630873 measures the temperature inside the oven. Disconnect the power 

A defective sensor may also cause the temperature problems that lead up to Bosch oven repair. Using an ohmmeter, you can check whether the sensor is working properly or not. When the temperature of the oven goes up, the resistance measurement in the ohmmeter also increases, indicating that the sensor is working correctly.

The sensor regulates the oven temperature by varying its resistance to electrical current as the oven temperature varies. As the oven temperature rises, the oven sensor creates greater resistance. If the sensor gives the wrong amount of resistance, the oven may not bake evenly. Or if the oven control board does not read the sensor resistance correctly, the oven temperature may be inaccurate.

Buy Bosch 00642855 Temperature Sensor: Parts & Accessories - FREE DELIVERY possible on eligible purchases

The probe temperature shows on the display panel - once you stick the probe in the meat, then plug it into the oven, the temperature setting displays: you then 

The oven temperature can be inaccurate for several reasons. Bosch has gathered the most common issues – click to read!

Buy MaxRed 00755060 492332 Meat Probe Thermometer Gauge Thermistor Sensor Replacement for Thermador, BOSCH, BSH Range Stove, Wall Oven, Grill, Baker: Parts & Accessories - FREE DELIVERY possible on eligible purchases Meat Probe Temperature Sensor DG32-00013A for Samsung Range Oven.

This item: 00414152 Oven Temperature Sensor Compatible With Bosch Thermador Stove Oven Ranges $99.99 W10181986 (WPW10181986) Range Oven Temp Sensor Probe,Fit for Whirlpool Ma.ytag Kenmore Ranges, Replace 8273902 W10131826 PS11749737 heat probe by TOMOON $10.77 316233902 Oven Temperature Sensor Probe Compatible with Genuine Frigidaire by

If you own a Thermador Oven, the failure of your oven sensor is inevitable. Your oven may not reach temperature, or the temperature displayed may be inaccurate, making your oven unusable. Sadly, Thermador and Bosch have discontinued the oven sensor part for many models of Thermador ovens, even models that aren't that old. When the sensor on my oven failed, I searched and searched for a replacement sensor, and the manufacturer had discontinued them, and nobody had any remaining stock.