Bosch Range Error Code E115

E115 indicates that the temperature inside the oven cavity exceeded the allowable limit while the door was in an unlocked state. The oven responds by cutting power to the heating elements and locking the door as a safety precaution. The fault points to a possible stuck relay, a failed temperature sensor, or a shorted heating element. A technician should diagnose the root cause before the oven is used again.

No, you should not use the oven while E115 is active. The fault indicates a potential runaway heating condition, and the oven has locked itself to prevent a hazard. Using the oven before the underlying cause is identified and corrected risks fire or further damage to the appliance.

Repair costs depend on which component has failed. A replacement temperature sensor is generally an inexpensive part, with total repair costs including labor typically ranging from around $100 to $250. A control board replacement is more costly, often ranging from $300 to $600 or more depending on the model and labor rates in your area. Getting a diagnosis from a certified technician before purchasing parts is advisable to avoid unnecessary expense.

Some steps, such as inspecting the heating elements for visible damage or checking if the oven sensor resistance is within specification, are within reach of a skilled DIYer with a multimeter. However, diagnosing and replacing a stuck relay on the control board typically requires disassembly and component-level knowledge that most homeowners should leave to a qualified technician. Attempting repairs on live electrical components without proper training is a serious safety risk.

A power cycle, such as unplugging the range or tripping the circuit breaker for a few minutes, may temporarily clear the error code. However, if the underlying cause (a welded relay, a bad sensor, or a faulty element) is still present, the fault will return, often quickly. A reset alone is not a repair and should not be treated as one.