Whirlpool 960 Series - Manual (Page 20)

Solving Common
Dishwashing Problems
A convenient checklist for handling minor performance problems. Go over this list before
calling for service. If you are unable to solve your dishwasher’s problem, turn to page 24 for
service information.
Solution chart
PROBLEM CAUSE SOLUTION
Food soil left
on dishes
Improper loading
Water temperature
too low
Follow loading instructions on pages 6-9.
Use the HIGH TEMP WASH option. If
needed, turn home water heater up to
ensure water entering dishwasher is 120°F
(49°C) minimum. See “To check water temp­
erature” on page 19. NOTE: In some cases,
loads may not dry as well when using the
HIGH TEMP WASH option.
Use of incorrect, too
little, or ineffective
detergent
Use recommended dishwasher detergents
only. Follow recommendations on page 10
for amounts. Never use less than one
tablespoon per load. Detergent must be
fresh to be effective. Always store detergent
tightly closed in a cool, dry place.
Detergent cakes in
dispenser
Use fresh detergent only. Do not allow
detergent to sit for several hours in a wet
dispenser. Check dispenser for caked
detergent. Clean dispenser when caked
detergent is present.
Insufficient fill due to
low water pressure Home water pressure should be 20 to 120
pounds per square inch (psi) for proper
dishwasher fill. A booster pump on the water
supply may be necessary if pressure is
too low.
Slowdown of wash
arm due to high suds Never use soap or laundry detergents. Use
recommended dishwasher detergents only.
Spotting
and filming Hard water or high
mineral content in
water
Use rinse agent to help prevent spotting
and filming. See page 11. To remove hard
water film, see “Removing spots and film" on
page 22.
Water temperature
too low Use the HIGH TEMP WASH option. 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 19. NOTE: In some
cases, loads may not dry as well when using
the HIGH TEMP WASH option.
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