The MEM301WS puts a full 4.5 cu ft convection oven on top and a dedicated 4.7 cu ft microwave-only cavity on the bottom – unlike the speed-oven combo units, the lower cavity here is microwave only, with no convection or bake modes of its own. Combined draw is 10,200 watts across both cavities.
That split matters for diagnosis: a ‘no heat’ complaint in the lower cavity is a microwave-system problem (magnetron, high-voltage diode, turntable motor), while the same complaint in the upper cavity points to the convection elements or fan instead. The upper cavity carries the Single-Point Temperature Meat Probe, Air Fry capability, and the 2-Hour Self-Clean cycle; none of those apply to the lower microwave cavity.
Key Features
- Masterpiece Collection 30-inch combination wall oven
- Upper cavity: 13 modes, 4.5 cu ft convection oven with Air Fry and Single-Point probe
- Lower cavity: dedicated Microwave only, 4.7 cu ft
- 10,200W combined draw
- Home Connect Wi-Fi enabled, 2-Hour Self-Clean on the upper cavity
Most Common Issues on This Model
Lower microwave-only cavity losing power while the upper convection oven still runs normally (isolated magnetum/microwave circuit problem)
Turntable motor failure in the lower cavity
Upper cavity's meat probe reading errors
SoftClose hinge wear on either door given the combined weight of a two-cavity stack
Home Connect connectivity drops