Whirlpool 900 Series - Manual (Page 19)

SOLVING COMMON DISHWASHING PROBLEMS
PROBLEM CAUSE SOLUTION
Spotting
and filming
(continued)
Use of incorrect
detergents
Incorrect amount
of detergent
Use recommended dishwasher detergents
only.
Follow recommendations on page 10 for
amount. Heavy soil and/or hard water
generally require extra detergent.
Use of ineffective
detergents Use fresh detergent. Store detergent tightly-
closed in a cool, dry place. Discard lumpy
detergent.
Insufficient fill due to
low water pressure 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 “To check water
temperature” on page 17.
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 Dishes must have proper water drainage.
Do not overload. Follow instructions for
loading dishwasher on pages 6-9. 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
reaction 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 detergent
but not less than one tablespoon per load.
Use a liquid rinse agent and underload 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.
White spots on
cookware with
non-stick finish
Seasoning removed by
dishwasher detergents Reseason cookware after dishwasher
washing.
continued on next page
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