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Spots and stains on dishes
■ Spotting and filming on dishes
Is your water hard or is there a high mineral content in your
water? Conditioning the final rinse water with a liquid rinse
aid helps eliminate spotting and filming. Keep the rinse aid
dispenser filled.
Is the water temperature too low? For best dishwashing
results, water should be 120°F (49°C) as it enters the
dishwasher. Refer to the “Dishwasher Performance
Tips” section.
Did you use the correct amount of effective detergent? Use
recommended dishwasher detergents only. Refer to the
“Detergent Use” section. Do not use less than 1 tsp (5 g) per
load. Detergent must be fresh to be effective. Store detergent
in a cool, dry area. Heavy soil and/or hard water generally
require extra detergent.
Is the home water pressure high enough for proper
dishwasher filling? Home water pressure should be 20 to
120 psi (138 to 828 kPa) for proper dishwasher fill. If you have
questions about your water pressure, call a licensed, qualified
plumber.
NOTE: To remove spots and film from dishes, try a white
vinegar rinse. This procedure is intended for occasional use
only. Vinegar is an acid, and using it too often could damage
your dishwasher.
1. Wash and rinse dishes. Remove all silverware or metal
items.
2. Put 1 cup (250 mL) white vinegar in a glass or
dishwasher-safe measuring cup on the rack.
3. Run the dishwasher through a complete washing cycle.
Do not use detergent. Vinegar will mix with the wash
water.
■ Silica film or etching (silica film is a milky, rainbow-
colored deposit; etching is a cloudy film)
Sometimes there is a water/chemical reaction with certain
types of glassware. This is usually caused by some
combination of soft or softened water, alkaline washing
solutions, insufficient rinsing, overloading the dishwasher,
and the heat of drying. It might not be possible to prevent the
problem, except by hand washing.
To slow this process use a minimum amount of detergent but
not less than 1 tsp (5 g) per load. Use a liquid rinse aid and
underload the dishwasher to allow thorough rinsing. Silica
film and etching are permanent and cannot be removed.
■ White spots on cookware with nonstick finish
Has the dishwasher detergent removed cookware
seasoning? Reseason cookware after washing in the
dishwasher.
■ Brown stains on dishes and dishwasher interior
Does your water have high iron content? Rewash dishes
using 1-3 tsp (5-15 g) of citric acid crystals added to the
detergent dispenser. Do not use detergent. Follow with a
Normal wash cycle with detergent. If treatment is needed
more often than every other month, the installation of an iron
removal unit is recommended.
■ Black or gray marks on dishes
Are aluminum items rubbing dishes during washing?
Disposable aluminum items can break down in the
dishwasher and cause marking. Hand wash these items.
Remove aluminum markings by using a mild abrasive cleaner.
■ Orange stains on plastic dishes or dishwasher interior
Are large amounts of tomato-based foods on dishes placed
in the dishwasher? Stains gradually fade over time. Stains will
not affect dishwasher performance. Regular use of a rinse
cycle will reduce the likelihood of staining.
Dishes do not dry completely
■ Dishes are not dry
Did you load your dishwasher to allow proper water
drainage? Do not overload. Refer to the “Dishwasher
Loading” section. Use a liquid rinse aid to speed drying.
Are the plastics wet? Plastics often need towel drying.
Is the rinse aid dispenser empty? Refer to the “Rinse Aid
Dispenser” section.
Dishes are damaged during a cycle
■ Chipping of dishes
Did you load the dishwasher properly? Load the dishes and
glasses so they are stable and do not strike together from
washing action.
NOTE: Antiques, feather-edged crystal, and similar types of
china and glassware might be too delicate for automatic
dishwashing. Wash by hand.
Scratches
■ Minor scratches on the surface of the sink or dishwasher
Scouring with a mild abrasive kitchen cleaner in the direction
of the grain lines will blend scratches into the finish of the
sink.