Oven Temperature Too High

What it means

This code appears on Bosch built-in ovens with electronic controls when the control detects a temperature inside the oven or around the electronics above the allowed limit, so it stops heating to protect the oven and the surrounding cabinet. The cause can be a failed cooling fan, blocked ventilation, a faulty temperature sensor or a stuck relay on the board. Oven codes differ between series, so confirm the meaning in your oven manual; the same number can mean something else on other brands.

Models covered: Bosch built-in ovens with electronic controls; oven codes differ between series.

Related codes: E011

Symptoms4

• The oven stops heating and E115 shows on the display.
• The front or the surrounding cabinet is hotter than usual.
• No sound from the cooling fan after cooking.
• Food was burning faster than usual before the code appeared.

Possible causes5

• A failed cooling fan that cools the electronics and the front.
• Blocked ventilation because the oven was fitted in a cabinet without the required openings.
• A faulty oven temperature sensor giving a wrong reading.
• A stuck relay on the control board keeping the heater on.
• A door lock or door seal problem during self-cleaning on models with that feature.

How to diagnose5

1. Switch the oven off and disconnect it at the breaker, and let it cool fully with the door closed.
2. Make sure the ventilation openings around the oven and in the cabinet are not blocked.
3. After it cools, switch it back on, listen for the cooling fan and see whether the code returns.
4. A technician disconnects power before pulling the oven out, then checks the cooling fan and the temperature sensor against the manufacturer specification.
5. The technician checks the relays on the control board and the thermal cut-out, which is never bypassed.

How to fix5

1. Clear the ventilation openings and make sure the oven is fitted as the installation guide requires.
2. Have the technician replace the cooling fan if it does not run.
3. Replace the oven temperature sensor if its reading is wrong.
4. Replace the control board if a relay is stuck.
5. Run the oven at a medium temperature and watch it to confirm stable heat and no returning code.

Repair cost

In Saudi riyals; the highlighted part is the expected range for this fault.

The cost is low for the temperature sensor or ventilation, and rises when the cooling fan or control board must be replaced.

Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026

Frequently asked questions