Bosch Oven Error Code E101

E101 on a Bosch oven indicates an open circuit in the Cavity 1 temperature sensor. The oven cannot read the internal cavity temperature, so it stops heating and runs the cooling fan at high speed as a protective measure. The cause is typically a disconnected wire, a loose connector, or a failed sensor probe.

No, the oven will not heat while E101 is active, so normal cooking is not possible. The oven has intentionally disabled its heating circuits to prevent operating without temperature feedback. Do not attempt to override or bypass this safety shutdown.

If only the temperature sensor needs replacement, parts and labor typically range from around $100 to $250 depending on the specific model and local labor rates. If the control module is the cause, repair costs can range from $250 to $500 or more. Getting a diagnosis from a qualified technician before ordering parts is advisable to avoid unnecessary expense.

A knowledgeable DIYer can diagnose E101 by checking sensor wiring connections and testing the sensor resistance with a multimeter. If the connectors are simply loose, reseating them may clear the error. If the sensor tests open, replacing it is a straightforward repair, but if the control module is involved, professional service is recommended.

A power reset by unplugging the oven or switching off the circuit breaker may temporarily clear the display, but E101 will return if the underlying fault is not repaired. The error code reflects a real electrical fault in the sensor circuit that must be physically corrected before the oven will operate normally.