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Black Friday Dishwasher Deals 2026: What to Compare

Comparing dishwashers for Black Friday 2026? Check the dBA noise rating, cutout size, place settings, drain line, panel-ready doors and the EnergyGuide.

By Appliance Error Codes editorial teamUpdated October 31, 20263 min readHow we research

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Noise, cutout size and capacity are what separate one Black Friday 2026 dishwasher deal from another: compare the dBA rating, the required cutout and the place settings, then read the yellow EnergyGuide label. If your current dishwasher shows a drain code such as Bosch E24, check the drain pump cover and the hose first.

Dishwasher noise ratings: what the dBA number means

The dBA number says how loud a dishwasher runs: lower is quieter, and the gap matters most in an open-plan kitchen within earshot of the sofa. Samsung’s Canadian buying guide treats 40 to 50 dB as quiet to moderate operation and 40 dB or less as ultra-quiet. Its table lists Samsung models from 39 to 53 dBA as of late 2024, so check current US spec sheets. One Bosch spec sheet lists 38 dBA.

Compare the figure on each maker’s spec sheet, and be wary of a listing that says “quiet” with no number behind it.

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Dishwasher cutout size versus overall size

A dishwasher spec sheet gives two sizes: the machine itself and the cutout, which is the opening it needs. Samsung’s Canadian guide gives its standard models, as of late 2024, as about 24 inches wide, 24 to 25 deep and 34 to 35 high. One Bosch spec sheet shows why the cutout figure matters: the machine is 23 9/16 inches wide and 23 3/4 deep, while the required cutout is 24 by 24.

Measure your opening at the front and back, as old cabinets and floors are not always true. Samsung also says to allow for handles and to check that the door opens fully, so look at drawers, an island or a range close by.

A woman bending to load the lower rack of a dishwasher in a bright kitchen — The open door needs clear floor in front of it, and room for you to stand and load.Photo: Shixart1985 / Wikimedia Commons, CC BY 2.0

Dishwasher specs that separate two machines of the same width

Two dishwashers of the same width can still differ on every one of these specs.

Spec	What to look for
Noise	dBA rating: lower is quieter
Capacity	Place settings; Samsung’s Canadian guide says its standard models usually hold 12 to 16
Racks	Whether a third rack is included
Wash system	Rotary or linear spray
Sensor	Soil sensors, which ENERGY STAR lists as a feature to look for
Door	Finish, including panel-ready doors that take a cabinet front
Running cost	Yellow EnergyGuide label, compared with the range shown for similar models

Compact and portable dishwashers

Compact and portable dishwashers suit kitchens with no standard opening, since many are narrower or stand outside the cabinet run. Weigh that against capacity. ENERGY STAR defines standard capacity as more than eight place settings and six serving pieces, and says compact models hold fewer and, because of that smaller capacity, may use more energy than standard models over time. Its advice is to pick the right size for your household and run full loads.

Check where a portable or countertop model will connect, and where it will sit when it is in use.

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Dishwasher drain lines when you swap machines

A dishwasher drain line is easiest to check while the old machine is out. Whirlpool’s help page says to route the line toward the sink or disposal without sharp bends or kinks, and to use a high loop to prevent siphoning and backflow. Your new model’s installation instructions come first, and any electrical or plumbing connection you are unsure of belongs with a qualified installer.

Bosch dishwasher codes: small fix or service call

Bosch dishwasher codes E24 and E15 sit at opposite ends: one has home checks, the other needs Bosch support.

E24 and its relatives. Bosch groups E22, E24 and E25 as drain-related, with causes such as a blocked drain pump or loose pump cover, a kinked hose or a clogged airgap. All of those have home checks.

E15. Bosch says this means water in the base with leak protection active, and lists no home checks. Turn off the water inflow and contact Bosch support.

Samsung’s LC code and LG’s dishwasher codes have their own pages. Meanings differ by brand and model, so read your own model label first.

For delivery, warranty and listing checks that apply to every large appliance, see the Black Friday appliance guide. Sizing runs differently on a refrigerator or a washer and dryer, so each has its own guide.

Frequently asked questions

How quiet should a dishwasher be?

Aim for the lowest dBA among the machines that fit your opening. Samsung's Canadian buying guide calls 40 dB or less ultra-quiet, and one Bosch spec sheet lists 38 dBA, so a figure in that range suits a kitchen open to a living room.

What is the difference between overall size and cutout size on a dishwasher?

Overall size is the machine; cutout size is the opening it needs. One Bosch spec sheet lists a machine about 23 9/16 inches wide and 23 3/4 deep with a required cutout of 24 by 24. Measure your opening and compare it with the cutout figure, and check that the open door clears nearby cabinets.

Is a compact dishwasher more efficient?

Not always. ENERGY STAR says compact models hold fewer dishes and, because of that smaller capacity, may use more energy than standard models over time. It defines standard capacity as more than eight place settings and six serving pieces, and advises choosing the right size for your household.