E2
Bosch Oven
Severity: ModerateWhat Does This Error Mean?
E2 means the oven temperature sensor circuit has a short — the sensor is reading an impossibly low resistance. Test the sensor and wiring, then replace the sensor if it reads close to zero ohms.
Affected Models
- Bosch Electric Oven
- Bosch Serie 2 Oven
- Bosch Serie 4 Oven
- Bosch Serie 6 Oven
- Bosch Serie 8 Oven
Common Causes
- Shorted oven temperature sensor (internal short in the probe)
- Pinched or damaged sensor wire causing a short to ground
- Moisture in the sensor connector
- Control board wiring short on the sensor input
How to Fix It
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Reset the oven.
Turn off the circuit breaker for 5 minutes. If moisture caused a temporary short, the reset may clear E2.
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Inspect the sensor wire for damage.
Trace the sensor wire from inside the oven cavity to the connector at the back. Look for pinching, cracked insulation, or burn marks — particularly where the wire passes through any metal panels.
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Test and replace the temperature sensor.
Disconnect the sensor and test resistance. A reading close to zero ohms confirms a short in the sensor itself. Replace with the correct sensor for your Bosch model.
When to Call a Professional
If a new sensor clears E2 but it returns within a few months, the wiring is being damaged by heat exposure — a Bosch technician should reroute or replace the wiring harness.