Whirlpool 9400 - Manual (Page 25)

C O M M O N D I S H W A S H I N G P R O B L E M S
Problem Cause Solution
Spotting and
Filming
(continued) Water temperature is
too low
Use of incorrect
detergents
Incorrect amount of
detergent
Use of ineffective
detergents
Insufficient fill caused
by low water pressure
Use the Hi-Temp option. If needed, turn
home water heater up to ensure water
entering dishwasher is 120“F (49“C)
minimum. See recommended procedure
on page 17.
Use recommended dishwasher
detergents only.
Follow recommendations on pages 14
and 15 for amount. Heavy soil and/or
hard water generally require extra deter­
gent.
Detergent should be fresh. Store in a cool,
dry place, preferably in an airtight con­
tainer. 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 If needed, turn home water heater up to
ensure water entering dishwasher is 120°F
(49°C) minimum. See recommended
procedure on page 17.
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 on pages 19-22. 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 Irides­
cent Deposit;
Etching is a Cloudy
Film)
A 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.
It may not be possible to prevent problem,
except by hand-washing. To retard this
process, use a minimum amount of deter­
gent but not less than one tablespoon per
load. Use a liquid rinse agent and
underload the dishwasher to allow thor­
ough rinsing. Silica film and etching are
permanent and can not be removed. Use
the Air Dry option.
Black or Gray
Marks on Dishes Aluminum items Aluminum items should be loaded so that
they will not rub against dishes during
washing. Throw-away aluminum items
should not be washed in the dishwasher
because they may break down and cause
marking. Aluminum markings can be
removed by using a mild abrasive cleanser.
continued on next page 25