What E101 Means
E101 on a Bosch range is the oven cavity temperature sensor reading open circuit, which Bosch attributes to a disconnected sensor or a faulty connection. The range responds by running the cooling fan at high speed and stopping oven heating; it resumes and clears the error once two consecutive readings succeed. On a range the manual notes E1 codes belong to the oven cavity, with E2 codes reserved for the warming drawer.
Common Causes of E101
- Oven cavity temperature probe failed open
- Sensor connector at the rear of the range unplugged or corroded
- Break in the sensor harness
🔧 One Safe Check You Can Try
Reset at the breaker for two minutes and see whether the oven heats again. A fault that returns later rather than immediately points at a connection making and breaking, which is worth mentioning when you book.
⚠ Why You Shouldn't Go Further Than That
- The sensor connector is behind the range, so the appliance has to come forward; on a gas model that means the flexible gas connector moves with it and the appliance shut-off valve should be closed first.
- Bosch's resistance measurement decides between an inexpensive probe and the control module, and the wrong reading costs the difference.
- The probe passes through the cavity wall into the insulation, and disturbing that changes how the oven holds heat.
- A probe refitted at a different depth reads differently even when the part itself is new.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.