Thermador Oven Error Code E170: How to Fix It

Q: What causes Thermador oven error code E170?

Error code E170 is caused by low voltage in the power supply, typically when voltage drops below 208V. This can be due to electrical service issues, loose connections, undersized wiring, or high electrical demand from other appliances.

Q: Can I still use my Thermador oven with E170 error?

No, you should not use the oven when E170 error appears. This error indicates unsafe electrical conditions that could damage the oven or create safety hazards. The oven will typically shut down automatically when this error occurs.

Q: How do I reset Thermador oven error E170?

Turn off the oven, wait 5 minutes, then turn it back on. However, simply resetting won't fix the underlying voltage issue. You must address the electrical problem causing the low voltage before the error will clear permanently.

Q: Is Thermador oven error E170 covered under warranty?

E170 errors are typically not covered under warranty since they're usually caused by external electrical supply issues rather than oven defects. However, if the control board is faulty and causing false voltage readings, that may be covered.

Q: How much does it cost to fix E170 error on Thermador oven?

Costs vary widely depending on the cause. Simple fixes like tightening connections cost nothing. Electrical service upgrades can cost $500-$2000. If the control board needs replacement, expect $300-$600 for the part plus labor charges.

Abstract

Thermador oven error code E170 indicates a power supply low voltage issue, meaning your oven isn't receiving adequate electrical power to operate safely. This error typically occurs when the voltage drops below the required threshold of 208-240V, causing the oven to shut down as a protective measure.