E115
Bosch
Cavity over-temperature protection triggered
Bosch oven displays E115 and shuts down due to high temperature
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Blocked oven vents, Faulty cavity temperature sensor, Stuck heating relay on control board, Failed cooling fan
How to Fix / Troubleshooting
Safety first: Turn off power and allow the oven to cool completely before inspection.
- Check vents: Ensure that no foil, trays, or panels are blocking the internal or external vents.
- Verify fan operation: In a heating cycle, confirm that the cooling fan runs. If not, test and replace the fan motor.
- Test temperature sensor: Measure the NTC sensor resistance and compare to Bosch specs. Replace if out of range.
- Inspect control board: If the oven continues heating after reaching set temperature, a stuck relay on the main board may be causing overheating. Replace the board if confirmed.
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Repair Difficulty
Hard
4/5
Required Part
Thermal Cut-Out / Main Control Board
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