For Kenmore wall oven buying, the first thing to know is who built it, and the first three digits of the model number tell you. On our model pages the 665 prefix is Whirlpool-built and the 790 prefix is Frigidaire-built. Every Kenmore wall oven we list is a discontinued or legacy model that we still service, so buying one now usually means choosing among used units or replacing a unit already in the wall. The builder decides the error codes you will see and where the parts come from.
Who builds Kenmore wall ovens?
Kenmore is a house brand and not a manufacturer. Our guide to who makes Kenmore appliances explains that the products have always been built by outside companies and that the first three digits of the model number identify the builder. On our site the 665 prefix belongs to Whirlpool and the 790 prefix to Frigidaire. The same table puts 106, 110, 198, 664 and 850 under Whirlpool as well, and 253, 336, 417, 587, 622, 628, 719, 791 and 970 under Frigidaire and Electrolux.
For wall ovens that matters more than the name on the door. Two ovens with the same Kenmore badge can have a different control, a different set of error codes and a different parts catalog. So the first step in any purchase is to read the model tag and check the prefix. Our Kenmore model number decoder shows where the tag is usually found and how to read the first three digits.
What do the Whirlpool-built and Frigidaire-built ovens on our site look like?
The Whirlpool-built 665 ovens on our pages are electric. The 665.4098450, 665.4098990 and 665.4098991 are listed as built-in single wall ovens with a single cavity, a self-clean oven cycle, an electronic clock and timer and an interior oven light, and the 665.4098991 is described as a close production revision of the 665.4098990. The 665.4493392 is listed as a built-in combination wall oven and microwave, stacked with the wall oven over the microwave, with a self-clean lower oven cycle, a combination microwave and convection upper cavity and electronic touch controls.
The Frigidaire-built oven on our pages is the Kenmore Elite 790.48353410, an electric built-in single wall oven in stainless steel with true convection cooking, a self-clean oven cycle and electronic touch controls. Our page says the Elite tier brings true convection and an upgraded finish to the Frigidaire-built platform.

How do you choose between a single oven and a combination?
Decide by the opening you have. A single wall oven sits in a single cavity opening. A combination unit stacks an oven and a microwave in one chassis, so it needs the opening for that stack and the connections for both. Our listing of the 665.4493392 shows that Kenmore made such a combination under the Whirlpool-built 665 prefix, and our model page says it traces to the same 665 electronics as the standalone wall ovens. Measure the opening, check the model’s installation manual for the cutout and read the label for the electrical rating before you commit. Our Kenmore oven installation guide covers the installation side.
Also keep the power in mind. Wall ovens are wired to a dedicated supply, and the connection is a job for a licensed electrician. Do not assume that a used oven will match the wiring in your wall.
What should you ask when you buy a used or legacy Kenmore wall oven?
Because the models on our pages are no longer in production, ask three questions. First, what is the full model number from the tag, and which builder does the prefix point to? Second, does the oven pass the basics: it heats, it holds a temperature, the door closes and seals and the self-clean cycle locks and unlocks as it should? Third, can you get the parts? Our parts lookup guide explains that a genuine replacement part has to be sourced by the correct underlying manufacturer, not by the Kenmore name alone, so a 665 oven draws on the Whirlpool parts ecosystem and a 790 oven on Frigidaire’s. See our Kenmore parts lookup guide and the Kenmore oven parts guide.
Also look at what the seller says about error codes. Our model pages say that Frigidaire-built ovens report F10 and F11, F30 and F31 and F90, and that Whirlpool-built ovens report F1, F2E0 and F3E0 or F3E1. They also say that F10 and any over-temp code are safety-critical, and that you should disconnect power until the oven is repaired. An oven that has shown one of those should be checked by a technician before you buy it or use it.
How do Kenmore, Elite and Pro differ for wall ovens?
Our guide to who makes Kenmore says there are three product tiers, mainline Kenmore, the premium Kenmore Elite and the professional-styled Kenmore Pro, with the Pro line concentrated almost entirely in cooking appliances. On our oven pages the Elite example is the 790.48353410, which lists true convection. Do not read more into the tier than the page says; the tier tells you about the finish and features, and the prefix tells you who built it. Our Kenmore vs Elite vs Pro guide compares them.
How do you keep an older wall oven going?
Our guide to the Kenmore wall oven maintenance routine covers the care that keeps an older oven in service, and if an oven is failing, our oven not heating diagnostics guide shows how a technician narrows it down. If you want a view on whether to keep or replace the oven you have, our oven repair page explains how a visit works.