The MB30WS is the Masterpiece-collection counterpart to the Professional-line MB30WP: same 30-inch drop-down door footprint, same 1.6 cu. ft. cavity, and the same 1750-watt, 120V/15A rating confirmed on Thermador’s own product page, but with Masterpiece styling and control-panel design instead of the Professional line’s touchscreen treatment.
Because the MB30WP and MB30WS share a cavity, door design, and control platform, they also share the same failure patterns: a drop-down door that isn’t seating flush, a keypad that stops responding after steam exposure, and turntable-drive wear that leaves food spinning unevenly or not at all. Thermador’s documented fix for keypad problems is to dry the panel and power-cycle at the breaker; anything that returns a numeric error code should be logged and referenced when arranging service.
Key Features
- 30-inch built-in drop-down door microwave from Thermador's Masterpiece collection, stainless steel finish
- 1.6 cu. ft. cavity, 1750-watt microwave output on a 120V/15A circuit, cutout roughly 19-1/4" x 28-1/2" x 19-1/4" (H x W x D)
- Home Connect Wi-Fi control, CookSmart auto-programs, and 10 dedicated microwave programs
Most Common Issues on This Model
Drop-down door hinge wear or misalignment can keep the door switch from sensing a full seal, so the unit won't start
Touch/keypad controls can stop responding after condensation gets into the control panel
Turntable motor, coupler, or roller-ring wear causes uneven heating or a turntable that won't turn