What's on a dishwasher maintenance checklist?
Updated August 2026
A dishwasher stays clean and odor-free on a five-minute filter rinse every month plus a monthly cleaner or vinegar cycle, with a quick wipe of the door gasket and a poke through the spray-arm jets. A blocked bottom filter is the number-one reason dishes come out gritty and the tub smells sour, and pulling it takes about two minutes. Keep to that and a machine reaches its 9–12-year life instead of quitting at six.
| Task | Interval | Effort |
|---|---|---|
| Pull and rinse the bottom filter | Monthly | 5 min · DIY |
| Run a dishwasher cleaner or vinegar cycle | Monthly | 1-hr cycle · DIY |
| Wipe the door gasket and edges | Monthly | 3 min · DIY |
| Task | Interval | Effort |
|---|---|---|
| Clear the spray-arm jets with a toothpick | Every 3 months | 10 min · DIY |
| Wipe out the detergent dispenser | Every 3 months | 2 min · DIY |
| Task | Interval | Effort |
|---|---|---|
| Descale the tub in hard-water homes | Every 6–12 months | under $10 · DIY |
| Check the drain hose and under-sink line for leaks | Yearly | 5 min · DIY |
| Clean the door hinge and inspect the seal | Yearly | 5 min · DIY |
What neglect costs
Skip the filter and food particles recirculate onto every load, so dishes come out grittier and you end up rewashing by hand or running a second cycle, roughly doubling the water and power a load uses. Left for months, that sludge turns to a foul biofilm and eventually jams the drain pump, a $150–350 repair, or pushes water onto the floor. Hard-water scale on the heating element drags efficiency down too, which is why a periodic descale earns its keep. A new dishwasher installed runs $400–1,200, so a five-minute rinse is cheap insurance.
Leave these to a pro
Most dishwasher upkeep is yours to do, but call an appliance tech when it leaks from the base, will not drain after you have cleared the filter and hose, or trips the breaker. Diagnostic visits run $100–250 before parts, and a new door seal or drain pump installed is usually $150–400. Hardwiring or moving the water supply and drain line is licensed-plumber territory. If the machine is past 8 years and a repair quote tops half the price of a replacement, steer the money toward a new one.
This whole checklist ships as reminders in OnOtto: every task above, on the right schedule for your home, snooze-proof.
Load this checklist as remindersFrequently asked questions
How do I fix a smelly dishwasher?
Pull and rinse the filter first, since trapped food is the usual culprit, then wipe the gasket and run a hot cycle with a cup of white vinegar in a bowl on the top rack. Follow it with a short cycle after sprinkling baking soda across the floor of the tub. If the smell returns within a week, clear the spray-arm jets and check that the drain hose has a high loop rather than a low sag holding stagnant water.
Should I rinse dishes before loading the dishwasher?
Scrape, do not rinse. Modern detergents rely on some food residue to cling to, and heavy pre-rinsing can waste thousands of gallons a year while making no difference to how clean the dishes come out. Just knock the big scraps into the trash so they do not clog the filter. If your machine has a soil sensor, pre-rinsing can actually shorten the cycle and leave dishes dirtier.
How often should I clean the dishwasher filter?
Once a month covers most households, or every two weeks if you rarely pre-scrape or run a load every day. Twist out the cylindrical filter at the base, rinse it under hot water, and scrub the mesh with an old toothbrush to clear the fine grit. The full schedule and the signs it is overdue live on the filter-cleaning guide.
Is it worth repairing a 10-year-old dishwasher?
Usually not, if the failing part is the circulation pump, motor, or control board. At ten years a dishwasher sits at the end of its 9–12-year life, and a repair of $350 or more on a machine you can replace for $400–1,200 rarely pays off. A new latch, filter, or gasket is worth doing; a dead pump is the tipping point toward replacement.