Dishwashers
How Often Should You Clean Your Dishwasher Filter?
Most modern dishwashers have a manual filter (not self-cleaning) that should be rinsed monthly and deep-cleaned every 1-3 months. A clogged filter is the leading cause of cloudy dishes, standing water, and poor cleaning performance — and it's a five-minute fix homeowners can do themselves.
The habit most homeowners don't know they're missing
Here's something that surprises a lot of people: most dishwashers made in the last 10-15 years do NOT have a self-cleaning filter, despite what many assume. They have a manual mesh/cylinder filter at the bottom of the tub that physically traps food particles — and it needs to be pulled out and rinsed by hand periodically. Skip this, and it's the single most common reason we get called for "dishwasher not cleaning" or "water pooling at the bottom."
How to find your filter
Open the dishwasher and remove the bottom rack. Look at the floor of the tub, usually near the spray arm — you'll see a round or rectangular cylinder that twists or lifts out. If you're not sure, your model's manual (or a quick search of the model number) will show the exact location and release mechanism, since it varies by brand.
How to clean it (takes about five minutes)
Twist or lift the filter assembly out per your model's release mechanism. Rinse it under running water, using an old toothbrush to work loose any trapped food debris, especially in the mesh screen. For a deeper clean every couple of months, soak it in warm water with a little dish soap for 10-15 minutes first. Reinstall it fully seated and locked — a filter that isn't properly seated can rattle or let debris bypass it entirely.
What happens if you never clean it
Food particles build up until water can't drain properly through the filter, which causes standing water at the end of cycles, a cloudy film on dishes (recirculated dirty water), a bad smell from trapped food, and eventually strain on the drain pump as it fights the restriction — which is a repair that costs a lot more than five minutes of rinsing a filter.
How often is \"often enough\"
A quick rinse monthly is a reasonable baseline for an average household. If you run the dishwasher daily, don't pre-rinse dishes much, or notice any film or odor developing, check it every two weeks instead. It really does scale with usage — there's no universal number, just a signal to watch for.
Other things that mimic a dirty filter
If you've cleaned the filter and dishes are still coming out dirty or cloudy, the next things to check are the spray arms (make sure the little holes aren't clogged — a toothpick works) and, if you have hard water, the interior heating element, which can accumulate mineral scale that a filter clean won't fix.
Frequently asked questions
Do I really need to clean my dishwasher filter if it \"seems fine\"?
Yes — buildup happens gradually and often isn't obvious until performance has already declined. A quick monthly rinse is cheap insurance against a bigger repair.
My dishwasher filter won't twist out — am I doing something wrong?
Some models use a push-and-turn mechanism or have a locking tab that needs to be released first. If it genuinely won't budge, don't force it — that can crack the housing. Call us and we can check it during a visit.
Can a dirty filter actually damage the dishwasher?
Indirectly, yes — a badly clogged filter puts extra strain on the drain pump over time, and pump replacement is a more involved repair than the five-minute maintenance that would have prevented it.