Bosch Range Error Code E101

E101 on a Bosch range means the control module has detected an open circuit in the Cavity 1 temperature sensor. This indicates the sensor is disconnected, has a wiring fault, or has failed internally. As a protective response, the oven stops heating and runs the cooling fan at high speed until the issue is resolved.

No, the oven cavity involved in the E101 fault should not be used for cooking while the error is active. The control has disabled heating precisely because it cannot monitor cavity temperature, which means it cannot prevent overheating. The cooling fan running at high speed is a protective measure, not a sign that normal operation can continue.

Repair costs vary depending on the root cause. If only a wiring connection needs to be reseated, there may be no parts cost at all. A replacement temperature sensor typically runs in the range of $20 to $80 for the part. If the control module has failed, parts alone can range from $150 to $400 or more, with additional labor costs if a technician is needed.

In many cases, yes. Start by inspecting and reseating the wiring connectors at the temperature sensor and at the control board, as a loose connection is one of the most common causes. If connections are secure, use a multimeter to test the resistance of the temperature sensor. A failed sensor is a straightforward part replacement, but if the sensor tests correctly and wiring is intact, a control module fault may require a qualified technician.

A reset, such as cutting power to the range at the breaker for a few minutes, may temporarily clear the error code. However, if the underlying cause is a faulty sensor, damaged wiring, or a bad connection, the fault will return as soon as the oven attempts to operate. A reset alone is not a repair and should only be used as part of a diagnostic process.