How to Clean Dishwasher Spray Arms
To clean dishwasher spray arms, remove loose debris, rinse the arms, and clear blocked jets gently with a soft brush or toothpick. Follow your dishwasher manual for removal and cleaning instructions.
On this page (6 sections)
To clean dishwasher spray arms, remove loose debris, rinse the arms, and gently clear blocked jets with a soft brush or toothpick. Check your manual before removing an arm, and make sure it turns freely when you reinstall it.
A blocked jet can reduce water coverage, leaving food on dishes. Start with a visual check, since a utensil or tall dish can also stop an arm from moving.
How do you clean dishwasher spray arms?
Inspect the spray arms, rinse away loose debris, and clear only the jets that look blocked. Your manual shows whether the arms lift off or need a specific release or twist.
- Turn off the dishwasher and let hot parts cool.
- Remove the lower rack so you can see the lower arm.
- Check the arm for food, labels, seeds, or other debris.
- Remove the arm only if your manual explains how.
- Rinse it under running water, then clear visible jet openings gently.
- Refit it as directed and turn it by hand to check its movement.
Use a soft brush and avoid sharp tools, wire, or force. Pushing debris deeper into a jet or widening an opening can cause damage.
For the rest of the appliance, follow our guide to how to clean a dishwasher. Cleaning the filter is a separate step that can help when food particles remain in the tub.
How can you clear blocked spray jets safely?
Use running water and gentle brushing first. If a small food particle stays lodged in a jet, a wooden toothpick can help loosen it, but don't push hard or leave pieces behind.
Check the arm's full length, including its ends and the center opening. Some designs have different jet positions, so compare what you see with your manual before trying to take anything apart.
Avoid pouring strong cleaners into the arm or soaking it in a solution unless the manual permits that method. If mineral residue is the issue, our guide to how to clean a dishwasher with vinegar explains when vinegar may fit into a cleaning routine.
Should you remove the spray arm to clean it?
Remove an arm only when your manual describes the process. Some arms release by lifting or turning, while others use a cap or fastener that must stay in place.
Don't pry an arm off or force it to turn. If it doesn't come free with the method in the manual, stop and check the model-specific instructions.
After removal, note how the arm sits before rinsing it. Reinstall it in the same orientation and make sure it spins without catching on the rack or dishes.
Our instructions for how to remove a dishwasher spray arm cover the removal step in more detail.
How do you check whether water coverage improved?
Run a normal cycle with the spray arms clear and the racks loaded so dishes don't block their paths. Afterward, check whether dishes still have food residue and whether the arms can turn freely by hand.
Before starting, spin each arm once and look for tall plates, pans, or utensils in its path. Don't run a cycle with an arm missing or loose.
If cleaning the arms doesn't improve coverage, check other likely causes. A dirty filter, an overloaded rack, or a drainage problem may need attention too.
If drainage is the issue, see how to clean a dishwasher drain.
See how to clean a dishwasher filter if the filter has visible buildup.
Could a dishwasher filter be part of the problem?
A clogged filter can affect cleaning and drainage, but it doesn't clean blocked spray jets. Check the filter separately and follow your model's instructions for removing and rinsing it.
The eHuangTools 645038 drain mesh is a replacement filter for some specific dishwasher models. Confirm your exact model's compatibility before choosing a replacement.
This filter doesn't clear the spray-arm openings. If water coverage is still poor after cleaning, check the arm and filter as separate parts of the diagnosis.
When might a pump filter cup replacement help?
Consider a pump filter cup only if your dishwasher uses the matching part and the existing cup needs replacement. A replacement cup won't unclog a spray arm.
Cenipar describes its W10872845 cup as washable and compatible with some Whirlpool and Kenmore dishwashers. Check your model and part number before buying.
Follow the dishwasher manual for filter access and care. If your model uses a different filter design, this cup may not fit.
What if the existing filter cup is damaged?
Match the replacement by your dishwasher model and the old part number. AMI PARTS identifies its W10872845 cup as fitting some Whirlpool, Kenmore, Amana, and KitchenAid dishwashers.
A filter cup replacement addresses the filter, not spray-arm cleaning. Don't force a part into place if its shape or locking tabs don't match.
What should you do if spray-arm cleaning doesn't help?
Check loading, the filter, and drainage before assuming the spray arm needs replacement. Move dishes that block the arm's path and inspect the arm again for damage or a loose fit.
If dishes remain dirty, the arm doesn't rotate, or drainage is poor after basic checks, consult your manual or a qualified service professional. Avoid disassembling pump or electrical parts unless the manufacturer provides instructions for that repair.
For a countertop model with drainage trouble, see how to clean a countertop dishwasher drain hose. A hose issue is separate from a blocked spray jet, but checking the right part can help narrow down the cause.
How often should you clean dishwasher spray arms?
Inspect the arms when you notice poor coverage, stuck-on food, or visible debris. How often they need cleaning depends on what goes into the dishwasher and how your model is used.
Scrape large food scraps into the bin, load dishes so they don't block the arms, and check the jets during routine dishwasher cleaning. Don't rinse every dish unless your manual recommends it.
To restore coverage, clear visible blockages gently, confirm that each arm moves freely, and check the filter separately if symptoms remain. Use replacement parts only when the model and part number match.
Frequently asked questions
How do you clean dishwasher spray arms without removing them?
Check your manual to see whether the arms can be cleaned in place. Wipe away visible debris, turn each arm by hand to check that it moves freely, and use a soft brush or toothpick to clear blocked jets without forcing anything into an opening.
Rinse loose debris away before running a cycle.
Can you use vinegar to clean dishwasher spray arms?
Vinegar may help with mineral residue, but check your dishwasher manual before using it because some manufacturers limit which cleaners are safe. For food particles, start with rinsing and gentle brushing.
Don't mix vinegar with bleach or other cleaning products.
Why are my dishwasher spray arms not spinning?
A spray arm may be blocked by a dish, utensil, or debris, or it may not be seated correctly after removal. Check the loading and installation first, then inspect the arm and its jets.
If it still won't move or the dishwasher has other symptoms, consult the manual or arrange service.
