Bosch Oven Will Not Turn Off? Causes & Fix

Quick Answer: Why Your Bosch Oven Will Not Shut Off#

Most likely: the element is getting continuous power because a relay on the control board has welded shut, or the temperature sensor has shorted and is commanding maximum heat. Either way this is a fire hazard — kill the breaker immediately, do not just rely on the off button. On a Bosch the two suspects are the board relay (welded from a power surge) and the oven sensor (reading near zero ohms, which the board reads as a call for full heat). An E005 or E011 code alongside the runaway heat helps point at the failing part.

Likely Causes at a Glance#

Walking Through the Diagnosis#

Safety comes before any diagnosis here, because a stuck-on element is a genuine fire risk. Cut power at the breaker right away — for hardwired Bosch built-ins the breaker is the only true disconnect — and if you smell gas near a gas range, leave and call the utility before doing anything. Bosch favors Torx fasteners, so a T15, T20, and T25 set keeps you from stripping heads, and you will need a multimeter for the sensor test.

With power off, start at the temperature sensor. Measure its resistance: a healthy oven sensor reads a sensible value that rises with temperature, so a reading near zero ohms means the sensor has shorted and is telling the board the cavity is freezing — the board answers by driving the element to maximum and never backing off. Replace a shorted sensor (Bosch part 00415910) rather than trying to recalibrate it.

If the sensor checks out, the fault is on the control board. Bosch boards switch the element through a relay, and a power surge can weld that relay's contacts closed; once welded, the element stays energized no matter what the display shows or which button you press. That is the single most common reason a Bosch oven will not turn off, and the fix is the board (part 00705047) — there is no safe way to un-weld a relay. Note any E005 or E011 code first, since it narrows which board circuit failed and lets a technician arrive with the right part.

An element that glows and will not stop even with the board disconnected has shorted internally and is feeding itself — less common, but worth ruling out once the board and sensor are eliminated. Whatever the cause, leave the breaker off until the repair is done; running an oven that will not shut off unattended is not worth the risk.

Repair or Replace? The Short Version#

Rule of thumb: if the repair comes in under about half the price of a comparable new oven and yours is under eight to ten years old, repair is the better call — a sensor or a control board is a targeted fix on an otherwise sound Bosch. Because both parts are proprietary, confirm which one failed with a meter before ordering so you do not buy the wrong board. Our technicians carry Bosch sensors and boards and verify the cause first — book a repair.

Frequently Asked Questions#

My Bosch oven will not turn off — what should I do right now?#

Cut power at the breaker immediately; a stuck-on element is a fire hazard and the off button cannot be trusted once a relay has welded. Leave it off until the board or sensor is diagnosed and replaced.

What usually causes a Bosch oven to stay on?#

Most often a relay on the control board has welded closed from a surge, keeping the element powered. A temperature sensor shorted to near zero ohms is the other common cause, since the board then drives full heat.

What do the E005 and E011 codes mean here?#

They are Bosch fault codes worth recording, as they narrow the problem to a specific board circuit. Note whether the code is constant or intermittent and pass it to your technician.

Is it safe to keep using the oven until a technician comes?#

No. An oven that will not shut off can overheat and start a fire, so keep the breaker off and do not run it. Wait for the sensor or board repair.