Whirlpool 900 SERIES Use & Care Manual page 25

PROBLEM CAUSE SOLUTION
Spotting
and filming
(continued)
Use of incorrect
detergents
Incorrect amount
of detergent
Use of ineffective
detergents
Insufficient fill due to
low water pressure
Use recommended dishwasher detergents
only.
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 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 ad-
equate enclosure for proper operation. See
Installation Instructions for complete
information.
Dishes do not
dry completely
Dishes do not drain
properly
Plastics
Dishes must have proper water drainage.
Do not overload. Follow instructions for
loading dishwasher. See the "Loading Your
Dishwasher" section. Use a liquid rinse
agent to speed draining.
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 reac-
tion with certain types
of glassware - usually
caused by some
combination of soft or
softened water,
alkaline washing
solutions, insufficient
rinsing, overloading
the dishwasher, and
heat of drying.
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 1 tablespoon per
load. Use a liquid rinse agent and under-load
the dishwasher to allow thorough rinsing.
Silica film and etching are permanent and
cannot be removed. Use the Air Dry option.
Black or gray
marks on
dishes
Aluminum items
touching dishes
Load aluminum items so that they will not
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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