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SOLVING COMMON DISHWASHING PROBLEMS
CAUSE
Incorrect amount
of detergent
Use of ineffective
detergents
Insufficient fill due to
low water pressure
Water temperature
is too low
Dishwasher is not
installed properly
Dishes do not drain
properly
Plastics
Water chemical
reaction with certain
types of glassware –
usually caused by
some combination of
soft or softened water,
alkaline washing
solutions, insufficient
rinsing, over-loading
the dishwasher, and
heat of drying.
Aluminum items
touching dishes
Seasoning removed by
dishwasher detergents
PROBLEM
Spotting
and filming
(continued)
Cycle takes
extremely
long time
Dishes do not
dry completely
Silica film
or etching
(silica film is a
white iridescent
deposit; etching
is a cloudy film)
Black or gray
marks on dishes
White spots on
cookware with
non-stick finish
SOLUTION
Follow recommendations for amount.
Heavy soil and/or hard water generally
require extra detergent.
Use fresh detergent. Store detergent tightly
closed in a cool, dry place. Discard lumpy
detergent.
Home water pressure should be 20 to 120
psi (138 to 838 kPa)for proper dishwasher
fill. A booster pump on the water supply
may be necessary if pressure is too low.
If needed, turn home water heater up
to ensure water entering dishwasher is
120°F (49°C) minimum. See the “To check
water temperature” section.
Undercounter dishwashers require
adequate enclosure for proper operation.
See Installation Instructions for complete
information.
Dishes must have proper water drainage.
Do not overload. Follow instructions for
loading dishwasher. Use a liquid rinse
agent to speed draining.
Some plastics, due to material, may need to
be towel dried.
It may not be possible to prevent problem,
except by hand-washing. To slow this
process, use a minimum amount of deter-
gent but not less than one tablespoon per
load. Use a liquid rinse agent and under-
load the dishwasher to allow thorough
rinsing. Silica film and etching are perma-
nent and cannot be removed. Use the Air
Dry option.
Load aluminum items so that they will not
rub against dishes during washing. Do not
wash throw-away aluminum items in the
dishwasher because they may break down
and cause marking. Remove aluminum
markings by using a mild abrasive cleanser.
Reseason cookware after dishwasher
washing.