Whirlpool 940 - Manual (Page 21)

SOLVING COMMON DISHWASHING PROBLEMS
PROBLEM CAUSE SOLUTION
Spotting
and filming
(continued) Incorrect amount
of detergent
Use of ineffective
detergents
Insufficient fill due to
low water pressure
Follow recommendations on page 10 for
amount. Heavy soil and/or hard water
generally require extra detergent.
Use fresh detergent. Store detergent tightly-
cbsed 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 terriperature
is too low
Dishwasher is not
installed properly
If needed, turn home water heater up to
ensure water entering dishwasher is 120‘’F
(4g*’C) minimum. See “To check water
temperature” on page 19.
Undercounter dishwashers require ad­
equate enclosure for proper operation. See
Installation Instructions for connplete
information.
Dishes do not
dry completely Dishes do not drain
properly
Plastics
Dishes must have proper water drainage.
Do not overload. Follow instructions for
bading dishwasher on pages 6-9. 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
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 harid-washing. To sbw this
process, use a minimum amount of deter­
gent but not less than one tablespoon per
bad. Use a liquid rinse agent and
underload the dishwasher to allow thorough
rinsing. Silica film and etching are perma­
nent 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 riot
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
nonstick finish
Seasoning removed by
dishwasher detergents Reseason cookware after dishwasher
washing.
continued on next page
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