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Model library · KitchenAid Wall Oven

KEMS378G

KitchenAid KEMS378G 27-Inch Combination Oven, Microwave Convection Repair

KitchenAid wall oven

Most common issues on this model

  1. Grease and charcoal filters left in too long, with weak extraction and a fan that strains
  2. High-voltage part failure that belongs on a technician's bench
  3. Control board wear after years of heat and grease
  4. Clogged cooling path causing overheating and shutdown mid-program

Just 27 inches wide, the KEMS378G packs a microwave convection oven above a convection oven into a Superba series cabinet. Finishes were sold as the KEMS378GBL, KEMS378GSS and KEMS378GWH, so you may see any of those on a plate.

The narrower cabinet leaves less air space around the electronics, so grease and heat reach the board sooner. When a program ends early, we look first at the cooling path for grease, then at the board for heat damage.

High-voltage parts are tested only with the oven unplugged and discharged, and by our technician. You get the price in writing before work starts, and our repair is warranted for 30 days. A note about how often the filters have been changed helps us trace airflow problems.

Key features

  • Superba series
  • 27-inch microwave convection upper oven with convection lower oven
  • Other numbers: KEMS378GBL, KEMS378GSS, KEMS378GWH
  • Discontinued legacy model
→Codes

Error codes this model can show

KEMS378GKEMS378G questions
Why did my KEMS378G stop partway through a convection program?

It probably overheated because grease blocked the cooling path. We clean the path and test the fan and thermal protection, then run a full program to confirm.

Is a KEMS378G control board worth repairing?

Sometimes. If heat or grease has damaged only part of the board, a repair is possible. We test first and give a price for the right fix before work.

Why are the KEMS378G high-voltage parts off limits for owners?

They can retain a dangerous charge after the oven is unplugged. Testing needs a discharge procedure and proper meters, so we do that part in our shop.

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Book repair for your KEMS378G

Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.

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