The Short Answer
The filter on a Maytag dishwasher lives in the floor of the tub, at the base of the lower spray arm — a round cylinder that releases with a quarter turn counter-clockwise, usually paired with a flat mesh plate beneath it. Rinse both under hot water with a soft brush monthly, and immediately if dishes turn gritty or the machine smells. Maytag switched from self-cleaning grinders to this quiet filter design over a decade ago, and a clean filter resolves more wash-quality complaints than any part we sell.
Finding the Filter
Pull the lower rack all the way out and look at the tub floor. At the base of the bottom spray arm you'll see a circular grey collar — that's the top of the cylindrical filter, and on most models it sits inside a flat mesh plate that lifts out with it. Turn the cylinder a quarter turn counter-clockwise (there are usually moulded arrows) and it rises free. If your Maytag is older and the tub floor shows no removable cylinder, you likely have the previous generation's hard-food grinder, which needs no cleaning — this bulletin is for the quieter filter era that replaced it.
The Five-Minute Clean
Take the filter to the sink and rinse it under the hottest tap water, working a soft brush — an old toothbrush is perfect — around the mesh until the film lets go. Grease is the real enemy, not the visible food: the fine mesh grows an invisible skin that water stops passing through. While the filter is out, wipe the sump opening it came from and fish out anything the mesh caught on its way down — glass shards and fruit stickers are the classic finds. Reseat, quarter turn clockwise until it locks, and you're done. No dishwasher part pays better for five minutes of attention.
“Maytag made the grinder obsolete for the sake of your dinner conversation. The filter is the rent you pay for the silence.”
Field note — The Technician Team
Grit, Smells, and Slow Drains
A neglected filter announces itself three ways. Grit on glasses — the wash pump is recirculating water through a clogged mesh, and fine particles ride along. A swampy smell — the trapped film is biology, and it flourishes in a warm, damp tub between cycles. Slow or incomplete draining — water fighting through a matted filter takes longer to leave, and on bad days trips a drain fault outright. All three reverse within one cycle of a proper cleaning, which is why the filter is always our first question when a Maytag owner calls about wash quality.
When the Filter Isn't It
A clean filter that doesn't fix the problem hands suspicion up the chain: spray arms with scale-plugged nozzles (each arm should spin freely and show clear holes), a circulation pump losing pressure, a stuck check valve letting dirty water drift back into the tub, or a heater that never brings the wash to temperature. Those are diagnoses, not guesses, and they're what our dishwasher repair service settles in one visit — with the quote in writing before anything comes apart.
Filter Questions
Where is the filter on a Maytag dishwasher?
In the floor of the tub. Slide out the lower rack and look at the base of the bottom spray arm: the round grey cylinder beside or beneath it is the filter assembly. Most Maytag dishwashers built since about 2010 use this twist-out design — a quarter turn counter-clockwise lifts it free, along with the flat mesh plate it sits in on many models. Machines older than that often used a self-cleaning grinder instead, which is why longtime Maytag owners are surprised the filter exists.
How often should I clean my Maytag dishwasher filter?
Monthly in a busy kitchen, and immediately whenever glasses come out gritty or the machine develops a swampy smell. Homes that scrape but don’t pre-rinse plates are exactly who the filter design serves — but the trade is that the filter genuinely needs the rinse. It takes five minutes at the sink with hot water and a soft brush; no tools, no chemicals.
I cleaned the filter and my Maytag dishwasher still isn’t cleaning well — now what?
Check the spray arms next: mineral scale and food fragments plug the nozzles, and each arm should spin freely by hand. Run a cleaning cycle with an affresh tablet or a cup of white vinegar to cut grease and scale through the whole water path. If wash quality is still poor, the usual suspects are a weak circulation pump, a stuck check valve leaving dirty water behind, or water not reaching temperature — all proper diagnoses for our dishwasher technicians rather than another round of guessing.