What E2120 Means
Thermador documents E2120 as a Zeolite (Crystal Dry) chamber heater problem.
Common Causes of E2120
- A failed heater in the Zeolite drying chamber
🔧 One Safe Check You Can Try
Reset the breaker for 30 seconds, then restore power and check if the problem clears.
⚠ Why You Shouldn't Go Further Than That
- The Zeolite chamber is an internal drying-system part, not a reasonable DIY access point.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.