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Bosch Oven Troubleshooting - PartsIPS

bosch oven troubleshooting

Nowadays, Bosch ovens are designed with self-diagnostic abilities. If your Bosch oven is not working properly with any problem, you may have a dilemma to resolve it. Don't worry, here, we have updated the Bosch oven troubleshooting guide so that you can fix the issues as soon as possible. Let's continue to read our Bosch convection oven troubleshooting tips and diagnose the problem to solve.

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Troubleshooting Bosch Oven Problems

Bosch Oven Not Heating

First, you should check for your unit is getting proper electrical power and oven temperature must be selected. After that check igniter. This is the most defective part of the oven, not heating. It has two functions. First, the igniter draws an electrical current through the oven safety valve to open it. Second, the igniter gets hot enough to glow and ignite the gas in your Bosch oven burner. If it becomes weak, the safety valve may fail to open properly. The oven doesn't open when the oven not getting heat.

If you want to determine the igniter is defective, you have to observe it when your oven is on. When the igniter glows for more than 90 seconds without igniting the gas flame, you have to consider it as too weak for opening the valve. You need to replace the igniter if it is weak. When it doesn't glow at all, you can test with a multimeter for continuity of igniter. If you found that there is no continuity, you can go through the replacement process.

Your Oven Bake Food Unevenly

Is your oven doesn't bake your food evenly is one of Bosch ovens problems? Yes, here is the troubleshooting tip for you. When the bake element in the oven is damaged, the unit will heat by the broil element only. Due to this reason, your oven will be heated unevenly. If the bake element glows red hot, then it indicates the bake element is working properly. If it doesn't glow red, it determines that the element is not heating.

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Sometimes, it will be visibly damaged if the element has burned out. You have to inspect the baking component for holes or blisters. By using a multimeter you can test the element for determining the baking element has burned out. If there is no continuity in the baking component, a replacement has to be done.

Bosch Oven Broiler Not Working

The broiler part may have burned out. You can see red hot glowing when the broil element is heating properly. If there is no red glow in the element, it indicates that the element is not heated. Sometimes, it will visibly affect if the element has burned out. Inspect the broil element for holes or blisters, Use a multimeter to test the broil element continuity. If that broil element doesn't have continuity, you need to replace it.

Stove Heating Element is Not Working

The spark modules supply energy to each spark electrode of the surface burner. If a weak spark is created by the burner or burner sparks intermittently, the spark module can be damaged. So, check the spark electrode and the spark wire first until the spark module is replaced. The spark module is potentially faulty if the spark electrode and spark wire are not at fault. Replace it if the spark module is damaged.

Oven Temperature Not Accurate

If the bake element is heating properly, then you can see red hot. As we discussed above, you can this bake element with a multimeter. If there is no continuity, you have to replace it.

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Bosch Error Codes

These Bosch oven errors are different for each model. But, all they have some common error codes that display information on the display. These include:

ER1 – Temperature Sensor Failure

To resolve this issue, you have to check the temperature sensor wiring, sensor, and control module. This error troubleshooting is somewhat difficult for resolving easily. So, you may need to take the help of an appliance repair expert.

ER2 - Issue with electrical network connection

This error will display due to issues in the incoming power connection or control module. Here are a few steps you can follow to resolve this problem.

  • Check the main supply connection and ensure that supply is within normal operating range.
  • Inspect the terminal connection block.
  • After that check the control module.

If you get any of these errors, you will get troubles with your incoming electric line.

ER3 - Oven overheating

For this, switch off the unit and let it cool for some time. After that, restart the oven.

ER6 - Defective door lock.

Check the door lock and get it replaced if you find it defective.

ER8 - Problem in the circuit

If you know electric circuit issues troubleshooting, check them once. Otherwise, call a technician.

E005 - The protective replay won't turn on.

Make the unit turn on and off to avoid this problem.

E011 - This error will occur when water or dirt entering the control panel. So, clean any dirt and moisture.

E115 - The temperature is too high.

E305 - No connection between the baseplates.

F31 - Temperature sensor failure

Check for temperature sensor probe for dirt buildup. Also, control malfunction may cause this error code.

F33- Indicates drawer sensor failure

F41 - Latch motor or wiring fault

F45 - Jammed or damaged upper oven door.


Sometimes troubleshooting Bosch oven problems can be critical. In that situation, you should take professional repair. However, you can use this guide for Bosch oven light troubleshooting, Bosch electric range problems, etc. fixing. Thank you for visiting PartsIPS!

About the Author


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