Thermador Oven Error Code E120: How to Fix It

Q: Can I still use my Thermador oven with E120 error?

No, you should not use the oven with error code E120. Without a functioning temperature sensor, the oven cannot accurately control temperature, creating a fire hazard and potential for severely undercooked or overcooked food.

Q: How much does a Thermador oven temperature sensor cost?

Thermador oven temperature sensors typically cost between $25-60 for the part. Professional installation may add $100-200 in labor costs depending on your location and service provider.

Q: What causes a Thermador oven temperature sensor to fail?

Temperature sensors commonly fail due to normal wear from repeated heating cycles, physical damage from oven cleaning or impact, moisture exposure, or electrical surges. High-heat cooking over time gradually degrades the sensor element.

Q: How long do Thermador oven temperature sensors last?

Thermador oven temperature sensors typically last 5-10 years with normal use. Heavy usage, frequent high-temperature cooking, or aggressive oven cleaning can shorten their lifespan.

Q: Will E120 error come back after replacing the sensor?

If you replace the temperature sensor with a genuine or compatible part and ensure proper installation, the E120 error should not return unless there are other electrical issues or the new sensor fails prematurely.

Abstract

Thermador oven error code E120 indicates that your oven's temperature sensor circuit is open, meaning the sensor has failed or become disconnected. This prevents your oven from accurately reading internal temperature, making it unsafe to cook with until repaired.