Medium - Inspection Needed

Bosch Oven E118 Error Code

E118 (sometimes shown as F118) typically appears when the oven can't read the temperature sensor correctly, due to sensor failure, wiring issues, or a communication problem between the sensor and the control board.

What E118 Means

E118 (sometimes shown as F118) typically appears when the oven can't read the temperature sensor correctly, due to sensor failure, wiring issues, or a communication problem between the sensor and the control board.

Common Causes of E118

  • Failed temperature sensor
  • Damaged or disconnected sensor wiring
  • Control board failing to process the sensor signal

🔧 One Safe Check You Can Try

There isn't a safe at-home test — this requires multimeter testing of the sensor circuit on a de-energized oven.

⚠ Why You Shouldn't Go Further Than That

  • This fault is easy to confuse with a heating element issue, and replacing the wrong part is a common, expensive mistake.
  • Testing the sensor circuit requires a de-energized oven and a multimeter; skipping proper power isolation is a shock risk.
  • The sensor sits inside the cavity near the broil element — removing it without care can damage the surrounding insulation.
  • A sensor reinstalled even slightly out of its original position can continue reading inaccurately even though the part is technically working.
  • Cavity access to reach the sensor typically voids the remaining warranty on the oven.

Still Seeing E118?

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Other Oven Error Codes

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FAQ

E118 FAQ

It's not an emergency, but an oven that can't accurately read temperature shouldn't be relied on for cooking until it's fixed.

In many models yes, since the same temperature sensor and control logic often govern both bake and broil functions.

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