Runaway Heat and a Self-Locked Door: Bosch Oven E115

What E115 means

The oven got hotter than Bosch permits while its door was unlocked, so it shut off the heat and locked the door on its own. That sequence is the runaway-heat protection at work. The actions on record name a stuck relay and element operation, which together describe an oven that was heating when nothing asked it to. Once the cavity falls back into range, the latch releases and the error clears.

Common causes of E115

Heating relay welded shut on the control module
Temperature sensor reading too low, so the control keeps calling for heat
Heating element producing uncontrolled heat

✓ One safe check you can try

1. Switch the oven off at the breaker and not just with the touch panel. 2. Keep it off until a technician has examined it. 3. Do not open a locked door, and do not run another cycle to see if it repeats. A stuck relay keeps an element powered whatever the panel shows, and the panel is no way to stop that.

! Why to stop there

An element that cannot be switched off can keep heating a closed cavity.
A relay problem and a sensor problem look alike, but the fixes and costs differ greatly.
Opening the control area exposes you to mains voltage on a board that may be failing.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Oven codes

E223Lower Probe Reads Colder Than Allowed (Bosch Oven E223) E226Bosch Oven E226 After the Lower Door Latch Signal Is Lost E309Control Module Failed Its Program Memory Check: Bosch Oven E309 E310Bosch Oven E310 Signals a Settings Memory Failure on the Control Module E312The Control Board's Own Heat Sensor Died (Bosch Oven E312) E314Bosch Oven E314 When the Cancel or Off Key Reads Stuck E414Off Key Failure Logged Behind the Scenes, Bosch Oven E414 E201Bosch Oven E201 on a Double Wall Model, Lower Cavity Sensor Reads Open

E115E115 questions

Why did the oven lock itself?

Locking the door is part of the protection. When the temperature runs past its limit, the control closes the latch so the door cannot be opened onto a dangerously hot cavity.

Can I reset it and carry on cooking?

We advise against it. If a relay is stuck, the problem will return and the oven may overheat again. Leave the breaker off and book an inspection.

What will the repair cost?

That depends on whether the relay, the sensor or the element is involved. We diagnose first and give you a written price before any work, with a 30-day workmanship warranty.