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1 Step 1: Pull and rinse the filter (the #1 fix)
Step 1: Pull and rinse the filter (the #1 fix)
Most modern dishwashers have a removable filter at the bottom — twists out, rinses under hot water, twists back in. People go years without doing this. Most rotten-egg smells disappear with a clean filter.
Twist out the cylinder filter at the bottom
Look in the bottom of the tub. Twist counterclockwise to remove. Rinse all the gunk out.
Toothbrush for filter mesh
Old toothbrush gets food particles out of the mesh better than just rinsing. ~$3.
Rinse weekly if you have hard food residue
Big-eater families = weekly. Just two adults = monthly is fine.
2 Step 2: Run a vinegar cycle (descales and deodorizes)
Step 2: Run a vinegar cycle (descales and deodorizes)
Place 1 cup of white vinegar in a dishwasher-safe cup on the TOP rack. Run a HOT cycle empty. Cuts mineral scale and deodorizes.
White vinegar, 1 cup on top rack, hot cycle
Heinz or store brand. ~$3.
Affresh dishwasher cleaner (proprietary)
Drop a tablet at the bottom, run hot. Made for the job. ~$8.
Lemi-Shine descaler (mineral buildup)
Citric acid powder. Best for hard-water areas. ~$10.
3 Step 3: Run a baking soda cycle (neutralizes smells)
Step 3: Run a baking soda cycle (neutralizes smells)
After the vinegar cycle, sprinkle 1 cup baking soda on the bottom of the dishwasher. Run a short hot cycle. Brightens the interior and removes any residual vinegar smell.
Arm & Hammer baking soda, 1 cup, short hot cycle
Sprinkle bottom. Run short cycle. ~$3.
Run the cycles separately (not at the same time)
Vinegar + baking soda = neutralization reaction that does nothing. Run them in sequence.
4 Step 4: Clean the spray arms
Step 4: Clean the spray arms
Spray arm holes clog with mineral deposits and food bits — water can't blast at full pressure. Pop off the arms (usually a twist or a clip), poke each hole with a toothpick or wire.
Pop off arms, clear holes with toothpick
Top and bottom arms. Each hole should spray clear water when reattached.
Soak arms in white vinegar 30 min
Heavy scale removal. Soak, rinse, reinstall.
5 Step 5: Wipe the gasket (door seal)
Step 5: Wipe the gasket (door seal)
The rubber gasket around the door traps food and mildew. Wipe with hot soapy water + a damp microfiber. Black mildew = needs vinegar + scrub.
Hot soapy water + microfiber wipe
Pull the gasket gently to clean the underside too.
Vinegar for mildew
Spray, wait 5 min, scrub with toothbrush. Black mildew flakes off.
6 Step 6: Monthly schedule + add rinse aid
Step 6: Monthly schedule + add rinse aid
Monthly: clean filter + vinegar cycle. Always: keep rinse aid topped off. Rinse aid prevents water spots and helps the soap rinse cleanly.
Finish Jet-Dry rinse aid
Refill the rinse aid dispenser when the light comes on. Major improvement on spotting. ~$8.
Set monthly cleaning reminder
Phone reminder on the 1st. Less than 30 minutes including the cycle wait.
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