How to Clean a Countertop Dishwasher

On this page (8 sections)

1. How do you clean a countertop dishwasher?
2. How should you clean the filter and spray arms?
3. How do you remove odors when you clean a countertop dishwasher?
4. What should you do about hard-water residue?
5. What mistakes should you avoid while cleaning a countertop dishwasher?
6. How often should you clean a countertop dishwasher?
7. How do you choose the right cleaning product?
8. What is the simplest cleaning routine?

To clean a countertop dishwasher, remove food debris, clean the filter and spray arms as the manual directs, wipe the tub, and let the interior dry. Use a machine cleaner only if your model's manual permits it.

This approach fits the keyword how to clean a countertop dishwasher while accounting for different filter, tank, and drain designs.

Countertop machines vary, so find the exact model instructions before removing parts or adding a cleaner. For an overview of how these compact machines are arranged, see what to know about countertop and tabletop dishwashers.

How do you clean a countertop dishwasher?

Start with an empty machine and clean only the parts your manual identifies as removable. A soft cloth, a careful debris check, and the maker's directions are enough for routine care.

1. Turn the machine off and unplug it if the manual says to do so.
2. Remove dishes and any removable racks or baskets.
3. Remove the filter only as directed, then rinse or wipe it as allowed.
4. Check the spray arms and clear blocked openings using an approved method.
5. Wipe the inner walls, door, and edges with a soft cloth.
6. Put the parts back securely and leave the door open briefly if the manual permits it.

Don't use a knife or metal pick on spray-arm openings. Avoid abrasive pads, bleach, and household cleaners unless the manufacturer specifically approves them.

If you are setting up a new machine, review our guide to setting up a countertop dishwasher before its first cycle. Correct setup helps you understand the water and drain connections before troubleshooting smells or residue.

How should you clean the filter and spray arms?

Use the manual's removal and cleaning steps for the filter and spray arms. These parts can collect food scraps and residue, but they don't all attach the same way.

Some models have removable filters; others use a different design. Don't assume a filter twists out, can go under running water, or should be scrubbed.

Check for visible debris around the filter seat and spray-arm openings. Clear only what you can reach safely using the approved method.

Then reinstall parts securely. If dishes still come out dirty or the machine stops mid-cycle, follow the maker's troubleshooting steps in our guide to common countertop dishwasher problems.

How do you remove odors when you clean a countertop dishwasher?

Remove trapped food and wipe away residue before choosing a machine cleaner. Let the interior dry if the manual allows it, and don't pour cleaner into a tank or drain unless the maker gives that direction.

Check the filter area, door edges, and accessible drain components as instructed. If the smell persists, look at the drain setup and troubleshooting guide before trying a stronger product.

Finish Dishwasher Cleaner Liquid is suited to periodic cleaning if your model accepts its instructions. Finish recommends using it every 3 months in an empty dishwasher: remove the top sticker and place the bottle upside down in the bottom rack.

Run a hot cycle, after confirming your countertop model allows that placement and cycle.

How to clean a countertop dishwasher with a cleaner tablet

A cleaner tablet is an option for odor-causing residue and mineral buildup when your manual permits it. Follow the appliance and cleaner instructions for where to put the tablet and whether the machine should be empty.

Affresh Dishwasher Cleaner Tablets are described as suitable for all dishwasher makes and models and usable with or without dishes. Check your model's directions before using one, since a countertop machine may have a different detergent or tank layout.

Don't put a tablet in a water tank, filter area, or detergent compartment unless both sets of instructions call for that location. Stop if you see excess suds or an error, then consult the manual.

What should you do about hard-water residue?

Use a cleaning method approved by the dishwasher maker to remove mineral marks. Hard water can leave deposits, but the right care depends on the model and its water system.

Wipe accessible residue with a soft cloth. Don't scrape deposits from the tub or spray arms.

Don't add salt unless your model has a water softener and its manual requires it. Our guide explains what problems hard water causes in a dishwasher.

If spots remain on dishes after a wash, rinse aid may help with drying and water spots when your machine has a compatible compartment. Finish Jet-Dry Rinse Aid is designed to help reduce spots and residue on dishes; check your manual for whether and where to use it.

Rinse aid is for dish drying and spots. It doesn't clean the filter or tub; for the difference between rinse aid and salt, see dishwasher salt vs rinse aid for countertop models.

What mistakes should you avoid while cleaning a countertop dishwasher?

Don't use a method your manual doesn't approve or force parts out of place. Compact machines can differ in their tank, drain, filter, and detergent designs.

Avoid hand dish soap in a wash cycle, since it can create suds the machine isn't designed to handle. Use dishwasher detergent for dishwashing and a machine cleaner only when the appliance instructions allow it.

Don't pull off panels, reach into a drain with tools, or attempt wiring or part repairs. If cleaning doesn't resolve a fault, follow the maker's support steps.

How often should you clean a countertop dishwasher?

Follow your model's schedule and remove visible debris as needed. A quick check after messy loads can catch food scraps before they build up.

Finish recommends using its dishwasher cleaner every 3 months, but that guidance applies to that cleaner. It doesn't replace any filter or tank maintenance specified for your machine.

If your model has a water tank, empty or rinse it only as the manual instructs. For portable models, follow their model-specific care steps instead of assuming they all use the same parts.

How do you choose the right cleaning product?

Choose based on your model's instructions and the problem you want to address. A machine cleaner is for residue inside the appliance; rinse aid is for drying and spots on dishes.

Finish Dishwasher Cleaner Liquid suits a model whose manual permits its upside-down bottle and hot-cycle method. Skip it if the instructions don't approve that placement or if you can't verify the cycle is suitable.

Affresh Dishwasher Cleaner Tablets suit a model whose manual permits cleaner tablets and their use instructions. Skip the tablet if the manual doesn't specify a safe location or use method.

Neither cleaner is a substitute for removing accessible food debris.

Finish Jet-Dry Rinse Aid suits a countertop dishwasher with a compatible rinse-aid compartment and a problem with wet or spotted dishes. Skip it if your model has no such compartment or its manual doesn't allow rinse aid.

For water spots, a dose of rinse aid won't replace cleaning the filter and tub.

What is the simplest cleaning routine?

Clear food scraps, clean accessible parts as directed, wipe the interior, and let it dry when allowed. Add a machine cleaner only when the manual approves its method.

Choose Finish Dishwasher Cleaner Liquid if its bottle-and-hot-cycle method fits your model, or Affresh Dishwasher Cleaner Tablets if the manual allows a tablet. Use Finish Jet-Dry Rinse Aid only when the machine has a compatible compartment and you want help with drying or dish spots.

If odor, residue, or a wash problem continues, check the model's troubleshooting guide or contact the manufacturer. Start with common countertop dishwasher problems and follow the instructions for your exact model.

Frequently asked questions

How often should you clean a countertop dishwasher?

Follow your model's manual for filter, spray-arm, tank, and tub care, and remove visible food debris when you see it. Finish recommends using its dishwasher cleaner liquid every 3 months, but confirm that its empty-machine, hot-cycle method suits your model.

Can you use vinegar to clean a countertop dishwasher?

Use vinegar only if your countertop dishwasher's manual allows it and explains how. Some makers warn against household cleaners or specific substances because they can harm parts or seals.

If vinegar isn't approved, follow the manual's cleaning steps or use a dishwasher cleaner it permits.

Why does my countertop dishwasher smell bad?

Food debris, residue, or water left inside can contribute to a bad smell. Check the filter, tub, spray arms, and drain setup as the manual directs.

If the odor continues after cleaning, consult the manual or contact the manufacturer before trying a stronger cleaner.

Can I use regular dish soap to clean a countertop dishwasher?

Don't put hand dish soap in the detergent compartment or run it through a cycle unless the manual specifically allows it. Suds can spill or interfere with operation.

Use dishwasher detergent for dishes and follow the manual's instructions to clean the empty machine.