The MEDMCW31WS stacks three cavities in one 30-inch column: a 4.5 cu ft top oven that includes Microwave among its 36 modes and a Rotisserie, a 3.7 cu ft center convection oven with 16 modes, and a 1.9 cu ft bottom cavity built around warming-drawer functions. Thermador’s site currently lists it as out of stock. Because it combines a speed oven, a full convection oven, and a warming drawer in one unit, repair work benefits enormously from first identifying which of the three cavities is actually misbehaving.
The top cavity is the one with microwave capability, so no-heat-in-microwave signs point there specifically, not to the center or bottom cavity. The Multi-Point Temperature Meat Probe and MaxBroil broil element are shared premium features consistent with Thermador’s higher-tier double ovens, just distributed across three cavities instead of two.
Key Features
- Masterpiece Collection 30-inch triple oven stack
- Primary cavity (top): 36 modes including Microwave, 4.5 cu ft, with Rotisserie
- Secondary cavity (center): 16 modes, 3.7 cu ft convection oven
- Third cavity (bottom): warming-drawer functions, 1.9 cu ft
- Multi-Point Temperature Meat Probe, MaxBroil, 9,200W-class draw
- Home Connect Wi-Fi enabled
Most Common Issues on This Model
Three separate heating cavities sharing one control interface, so isolate which cavity is actually faulting before replacing parts
Speed-oven top cavity's magnetron or turntable motor failing independently of the two lower cavities
Warming-drawer (third cavity) element failing while the two ovens above still work fine
Rotisserie motor wear given the added weight of a three-cavity door stack
Door lock/self-clean problem isolated to whichever of the two convection cavities is actually cleaning

