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KitchenAid Architect Series II KEMS378S

27" Microwave Combination Wall Oven with 3.7 cu. ft. Oven Capacity, 900 Cooking Watts, & Even-Heat True Convection System


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Architect Series II cooking products include a variety of options to fit your needs. From built-in ovens and warming drawers, to freestanding and slide-in ranges, there's something for every kitchen and every cook. Intuitive easy-to-use features such as Even-Heat True Convection, Custom Control temperature management, and high-speed cooking, were inspired by, and created for, those who love to cook. KitchenAid is also one of the only manufacturers that offers a full line of ventilation hoods to complement a full suite of kitchen appliances. And, they test all of their ventilation systems for compatibility with their cooktops and ranges.

The Architect Series II cooking products will remind you of all the reasons why you love to cook. Refined performance features encourage your creativity by giving you the freedom to experiment - and feel confident when doing so. The feel of a well-crafted handle and the seamless look of beveled edges are two examples of the enhanced design elements that will capture your senses. This evolution of performance and design is another demonstration of why KitchenAid cooking products are an excellent choice for you.

With both microwave and oven convection cooking, this combination oven offers the versatility and speed of a microwave and the exceptional performance of our convection ovens. In addition to the performance benefits, you receive the appearance of a built-in wall oven.
Recessed Oven Depth: 23 in.
Depth: 26 in.
Height: 42 5/16 in.
Width: 26 3/4 in.
Cutout Depth: 23 1/4 in.
Cutout Height: 41 1/4 in.
Cutout Width: 25 1/2 in.
Microwave Oven Capacity: 1.4 Cubic foot
Oven Capacity: 3.7 Cubic foot
Add Minute Pad: Yes
Bread Proofing and Dehydration Functions: Yes
CleanBake Hidden Element: Yes
Cleaning Type: Self-Cleaning
Control Lock Out Function: Yes
Control Style: Glass Touch
Convection Functionality: Yes
Convect Full Meal Automatic Cooking: No
Convection System: Yes
Cooking Functionality: Electronic
Cooking Type (Lower): True Convection
Cooking Type (Upper or Single): Standard Microwave
Crisp and Broil Functions: Yes
Delay Cook: Yes
Fuel Type: Electric
Jet Defrost System: No
Jet Start: No
Microwave Type: Built-In Combination Micro/Oven
Number of Instant Cook Pads: 0
Number of Interior Oven Lights: 3
Number of Racks: 3
Oven Light: Yes
Oven window: Yes
Personal Choice Cycle: No
Reheat, Defrost Cycles: Yes
Sabbath Mode Functions: Yes
Sensor Cook: Yes
SpeedCook: No
Stainless Steel Cavity: No
Temperature Probe: Yes
Time of Day Clock: Yes
True Convection System: Yes
Tupperwave Oval Steamer: No
Turntable: Yes
Under Counter Installation: No
Warm Hold Cycle: No
Self-Cleaning: Yes
Auto Cook: Yes
Auto Defrost: Yes
Auto Reheat: No
Cookbook: No
Minute Timer: Yes
Sensor Reheat: Yes
Maximum Power in Watts: 900
Temperature Management System: Standard
Control Type: Electronic
Electronic Controls System: Yes
  • Microwave Oven Features
  • Convection cooking provides more even results in less time
  • EasyConvect Time and Temperature Conversion System takes the guesswork out of convection cooking
  • Custom reheat and custom defrost functions
  • Soften and melt cycles
  • Steam cook cycle including steam container
  • Easy minute control adds time in one-minute increments
  • CrispWave Technology provides grilling, frying, and convection cooking options
  • Oven Features
  • Even-Heat True Convection System provides even heating throughout oven
  • EasyConvect Time & Temperature Conversion System
  • Conventional thermal cooking with two-element balanced baking and roasting
  • High-speed, adjustable broiling performance for large or small quantities
  • Closed-Door Convection Broil with Full & Center Settings
  • True-Broil Reflector concentrates heat for optimum broiling
  • Enhanced self-clean cycle includes an energy-saving quick setting
  • Removable temperature probe accurately measures internal temperature of meats, poultry, and liquid-based casseroles
  • Proof bread without needing a bread maker
  • Dehydrate fruits and vegetables for fresh taste throughout the year
  • Hefty Slide-Out Racks with Handles
  • SatinGlide Roll-Out Extension Rack with Handle
  • 2 Halogen oven lights allow a more natural view of cooking progress
  • Blue-Enameled Cavity
  • Large window provides a wide, full view of all three racks
  • Full glass inner door provides easy clean-up and sleek look
  • Beveled edges create a soft, integrated look with surrounding cabinets
  • Oven & Microwave Oven Features
  • Responsive glass-touch oven display with lockout
  • Architect Series II styling
Info and Guides

Adobe Acrobat FileDimension Guide

Adobe Acrobat FileInstallation Instructions

Adobe Acrobat FileUse & Care Guide

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Product Reviews
Rated 4.1 out of 5 by 11 reviewers.
Rated 5 out of 5 by Cool and very usable. Complex, just read the instructions and go for it. The control panel is at eye level and very useable after familurization t 7/13/08
Rated 5 out of 5 by Great product and deal The purchase was a retrofit into an existing upright cabinet.We searched many product lines, both local and on the net, [...] and the decision was easy.The ovens fit our need, our design requirements and most of all, they are more than we expected.Pricing was very acceptable [...]. All in all, the micro is larger than our old unit. the main oven is more functional than the older unit too. The single band of controls is now at eye level for my wife and not high above or too low. Our complements to the designers. We own a single upright Kitchen Aide freezer and separate refrigerator for over twenty years and are still pleased with that purchase.We can not find anything wrong except the weight. It took two men and a dog to set it in place.Thanks again for the purchase opportunity.Ed and Pat Solner 12/24/07
Rated 1 out of 5 by Worst Purchase Ever We had this oven installed on December 1st 2008. It lasted 4 weeks before the magnetron and inverter went. We called kitchenaid to get the appliance fixed, who sent a repair technician who diagnosed the problem but couldn't fix it. Kitchenaid then sent ANOTHER technician who then had to re-diagnose the problem.The second technician has been a nightmare since, unable to order correct parts and fix the problem at all.To this date, the oven has been broken for 4 weeks with no sign of it getting fixed anytime soon. Do yourself a favor and get something else. 2/5/09
Rated 5 out of 5 by Excellent Product-Good Value I was particular with the oven-microwave oven combo both with appearance and fit in our kitchen remodel and this product definately was best. It is well made with many features that are user friendly. We had a double oven that we rarely used both at the same time and this unit got the micowave off the counter and provided more counter space. Although more money than other units with similar features, this company was definately the best value. The convection system in both units is a plus and a very nice feature. I would highly recommend this oven if it is the fit for your cabinet and kitchen. 4/2/09
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Quick Specs
Quick Specs


  • Fuel Type : Electric
  • Style : Double
  • Microwave : Yes
  • Speed Oven : No
  • Steam Oven : No
  • Viewing Window : Yes
  • Drawer : None
  • Clock : Digital


  • Cutout Width : 25 1/2"
  • Cutout Depth : 23 1/4"
  • Cutout Height : 41 1/4"
  • Exterior Width : 27"
  • Exterior Depth : 26"
  • Exterior Height : 42 5/16"

Oven Features

  • Upper Capacity : 1.4 Cu. Ft.
  • Lower Capacity : 3.7 Cu. Ft.
  • Convection : Yes
  • Self-Cleaning : Yes
  • Control Type : Touch Sensor
  • Broiler Element Location : Top
  • Delay Bake : Yes
  • Digital Temperature Display : Yes
  • Interior Oven Light : Yes
  • Oven Racks : 3
  • Proofing : Yes
  • Removable Door : Yes
  • Sabbath Mode : Yes
  • Temperature Probe : Yes
  • Timer : Yes

Microwave Features

  • Convection Oven : Yes
  • Capacity : 1.4 Cu. Ft.
  • Watts : 900
  • With Turntable : Yes

Technical Details

  • Star-K Certified : No
  • ADA Compliant : No
  • Wattage : 3250
  • Undercounter Installable : No
  • Amps : 40
  • Voltage : 240/208 Volts
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