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. A booster
pump on the water supply can be added if pressure is too
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
1. Wash and rinse dishes. Use an air-dry or an energy saving
dry option. Remove all silverware or metal items.
Put 2 cups (500 mL) white vinegar in a glass or
measuring cup on the bottom rack.
Run the dishwasher through a complete washing cycle
using an air-dry option. 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
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 tb (15 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. Do
not use heated drying.
White spots on cookware with non-stick finish
Has the dishwasher detergent removed cookware
seasoning? Reseason cookware after washing in the
Brown stains on dishes and dishwasher interior
Does your water have high iron content? Rewash dishes
using 1-3 tsp (5-15 mL) of citric acid crystals added to the
covered section of 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
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. Regular
use of heated drying will slow fading. Stains will not affect
Regular use of a rinse cycle and an
air-dry or energy-saving
dry option will reduce the likelihood
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
Did you use an air-dry option? Use a heated drying option for
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. Minimize chipping by moving the rack in and
NOTE: Antiques, feather-edged crystal, and similar types of
china and glassware might be too delicate for automatic
Wash by hand.
Grinding, grating, crunching or buzzing sounds
A hard object has entered the wash module (on some
models). When the object is ground up, the sound should