The SEC301 is a legacy 30-inch built-in electric convection oven from the same Thermador generation as the SEC302, documented together in the brand’s shared installation manual for ‘Built-in Electric Convection Ovens’ alongside the SEC271 and the older C-series units.
Given the shared design lineage, service issues tend to mirror those seen on the SEC302: a self-clean door lock that won’t release, convection fan wear, and element failures consistent with an appliance from this older, pre-Home Connect generation.
Key Features
- 30-inch built-in electric convection oven
- Self-clean capable
- Documented in the same installation manual family as the SEC271, SEC302, and the C-series ovens
- Older electromechanical/early-electronic control generation
Most Common Issues on This Model
Self-clean door lock not releasing after cool-down
Convection fan motor wear
Bake/broil element failure
Aging control board or relay failure
Door seal wear affecting temperature consistency

