The MD30BS is a 30-inch built-in microwave without the added convection function of Thermador’s Speed Oven line, which means fewer independent systems to isolate when diagnosing a problem — the magnetron/heating circuit, the control board, and the touch keypad are the primary parts involved.
As with Thermador’s Speed Ovens, a documented E11 error here points specifically to the touch keypad, often condensation-related and worth a dry-wipe-and-power-cycle check before assuming a keypad replacement.
Key Features
- 30-inch built-in microwave oven
- Standard microwave heating (no convection function, unlike the MC30WS Speed Oven)
- Touch control panel
Most Common Issues on This Model
01
Won't heat, though display and fan run normally
02
Touch controls unresponsive (E11 condensation problem)
03
Door won't latch, or a door-sensor problem prevents the cycle from starting
04
Display shows a generic numbered "E" error code