What E118 Means
E118 on a range points to a failure reading the oven's temperature sensor, the same underlying fault seen on Bosch wall ovens, affecting baking accuracy.
Common Causes of E118
- Failed temperature sensor
- Damaged or disconnected sensor wiring
- Control board signal processing fault
🔧 One Safe Check You Can Try
There's no safe at-home test for this — sensor circuit testing requires a de-energized unit and a multimeter.
⚠ Why You Shouldn't Go Further Than That
- This fault is easy to confuse with a heating element issue on the oven side, and replacing the wrong part is a common, costly mistake.
- Testing the sensor circuit requires the oven cavity to be fully de-energized — skipping that step is a shock risk.
- The sensor sits near the broil element; removing it without care can damage surrounding insulation.
- A sensor reinstalled slightly out of position can continue reading inaccurately even after replacement.
- Cavity access to reach the sensor typically voids the remaining warranty on the range.
Still Seeing E118?
Book a factory-trained technician and get it diagnosed correctly the first time — no guesswork, no repeat visits.