When you own a restaurant, your stove must be working properly at all times to keep from wasting food and losing money. If the thermostat is not working correctly, foods will end up burning or going to the table not cooked enough. At the first sign of under or over cooked food, check that the temperature inside the oven is at the temperature set on the thermostat. To do this, use a different thermometer inside the oven. If the reading is different from what you have the oven temperature set at, here are some steps to take to fix the problem.
Check the Placement of the Thermostat
The thermostat should be secured in the clips that hold it in place inside the oven. The oven was designed so that the temperature inside stays even and is correct when read at a very specific spot. When the thermostat is in a different position, even if just outside the clips, it will send an incorrect reading
Calibrate the Thermostat
To calibrate the thermostat, you will need to work with the oven on and set to a low temperature. Using a spare thermometer, check to see what the temperature is
Change the Thermostat
If you cannot get the thermostat to calibrate, it needs to be replaced. Unless you are familiar and comfortable with working with appliances, it is probably best to have a technician come out to do it. If you do decide to do it yourself, you will need to know the make and model of your stove to get the right part. Do not attempt to use a thermostat from a different type of stove or it may not work with the control unit in yours, even if it fits.
Having an oven that heats to the temperature you set it at will save your