How to Tell if Your Bosch Oven Thermostat Is Broken

oven fan

In the kitchen, our ovens play the crucial role of cooking our food for us. But a faulty or broken Bosch oven thermostat can mean food that’s under or overcooked or cooked unevenly. Either of these situations are undesirable because your oven should be working optimally each and every time. However, when the thermostat is broken, the temperature regulation that takes place within the oven while it’s working can go a bit off. Before you call in the experts though, there are a few things you should know about your Bosch oven thermostat as well as how to tell if it is broken and needs repairs. Here’s a quick and easy guide for you to follow. 

Bosch oven thermostat: how it works

Before getting into the nitty gritty of Bosch oven thermostats and determining whether they are broken or not, it’s important to understand the role that an oven thermostat performs in your oven. Essentially, this piece of equipment is a switch. This switch can either open or close depending on the temperature sensed. As for its location, you can generally find it in the control panel. This is where a liquid-filled temperature-sensing bulb senses and maintains the internal oven temperature. This is done by using cycles of heat which are turned on and off. 

How to tell if a Bosch oven thermostat is broken

There are a few ways to tell if your oven thermostat is broken. These ways are quite simple to do by yourself and they are quick to figure out. For example, you will need to check if your Bosch oven thermostat light is not coming on at all or if the Bosch oven thermostat light stays on even after you’ve switched off your oven. These are the first telltale signs of thermostat damage and once you’ve identified these “symptoms”, you’re ready to proceed to the next step: how to test your Bosch oven thermostat. 

How to test a thermostat

If your Bosch oven thermostat light is not working at all, then this is a strong indicator that your thermostat is broken. However, if you want to be completely sure, there are two approaches you can follow to test your thermostat. The first involves using a multimetre and the second involves using an oven thermometer. Let’s explore each option in more detail below.

  • Using a multimetre: in order to use a multimeter, your very first step should be to completely disconnect your oven from any and all sources of electricity. Since this process will require opening the back panel of the oven, you want to take all safety precautions to ensure you do not get electrocuted or an electric shock. Therefore, as a starting point – disconnect the oven cable from the wall and even go to your fuse box and turn the switch for your oven to the off position. Once you’re ready, you will want to use a screwdriver to remove the back panel of your oven. From there, locate the thermostat. Using a multimetre, which is set to the ohm setting, place the two multimetre prongs on either side of the thermostat to measure the ohm reading. The reading should range from 1,000 to 1,100. Anything above or below this reading is an indication that your thermostat is broken and will need to be replaced. Remember to replace the back panel by screwing it back in place when you’re ready. And only once the entire oven unit is completely secure should you switch the power back on. 
  • Using an oven thermometer: the second approach involves using an oven thermometer. This can be purchased from any hardware store. Turn your oven on to a specific temperature, say 120 degrees Celsius, and place the oven thermometer in the oven. Give the oven around 30 minutes to heat up completely. After this, you should check the oven thermometer and see if the temperature it displays is close to the 120 degrees Celsius which you set the oven to initially. A reading of around five degrees Celsius more or less is an indication that your oven thermostat is working properly. However, anything below or above this is considered an abnormality and should be fixed by a professional. Remember to repeat the step of placing the oven thermometer in the oven at a given temperature around two or three times to ensure that you get a correct reading. 

Your trusted Bosch oven repair experts

Whenever you are worried that your Bosch oven’s thermostat is broken, you should always consider calling in the experts for professional advice and high quality Bosch oven repairs in London. At Mix Repairs, we understand that this can seem like a daunting task but choosing to perform your own repairs could end up being costly and importantly, could be harmful to your health. Don’t hesitate to get in touch with us for any of your Bosch oven repair needs. We’re just a call away and ready to assist. 

How to Tell if Your Bosch Oven Thermostat Is Broken was last modified: January 16th, 2024 by Mix Repairs