Whirlpool 920 Series Use And Care Manual page 26

PROBLEM
Spotting and
filming
(continued)
CAUSE
Use of incorrect
detergents
Incorrect amount
of detergent
Use of ineffective
detergents
Insufficient fill due to
low water pressure
SOLUTION
Use recommended dishwasher detergents
only.
See the "Using the Dispensers" section 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 for proper dishwasher fill. A booster
pump on the water supply may be neces-
sary if pressure is too low.
Cycle takes
extremely
long time
Water temperature
is too low
Dishwasher is not
installed properly
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 the Installation Instructions for com-
plete information.
Dishes do not Dishes do not drain Dishes must have proper water drainage.
dry completely
properly
Do not overload. Follow instructions for the
"Troubleshooting" section. Use a liquid rinse
agent to speed draining.
Plastics
Some plastics, due to material, may need to
be towel dried.
Silica film or
etching
(silica film is a
white iridescent
deposit; etching
is a cloudy film)
Water chemical It may not be possible to prevent problem,
reaction with certain
except by hand washing. To slow this
types of glassware -
process, use a minimum amount of deter-
usually caused by gent but not less than 1 tablespoon per
some combination of
load. Use a liquid rinse agent and under-
soft or softened water,
load the dishwasher to allow thorough
alkaline washing rinsing. Silica film and etching are perma-
solutions, insufficient nent and cannot be removed. Use the Air
rinsing, overloading
Dry option.
the dishwasher, and
heat of drying.
Black or gray
Aluminum items
Load aluminum items so that they will not
marks on dishes
touching dishes
rub against dishes during washing. Do not
wash throwaway aluminum items in the
dishwasher because they may break down
and cause marking. Remove aluminum
markings by using a mild abrasive cleanser.
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