Whirlpool DU4000XY Use & Care Manual page 12

Common Dishwashing Problems
Continued
Dishes not washing clean
Water is not hot enough
Waler temperalure should be at least 140'F
(6O.C). Set water heater lhermostal lo a higher
selling. Run waler al sink until hol before starting.
Improper loading
Make sure dishes and glassware are loaded
so spray reaches all surfaces and ilems drain
properly. Do not overload. Do nol nesl items.
Make sure large ilems do nol block spray from
reaching delergent dispensers.
Spray arm not rotating freely
Check spray arm lo make sure il lurns freely
aller loading. Be sure a utensil is not slicking
out
the boltom 01 Ihe silverware baskel and blocking
Ihe spray arm from turning.
Not enough detergent or improper
detergent
Use more dishwasher detergenl. Use detergent
with highest available phosphorus content..
especrally wilh hard water.
"Old" detergent
Use only fresh dishwasher detergent. Store
tightly closed conlainer in cool, dry place.
Discard old delergent. Do nol lill dispensers
until ready lo start dishwasher.
Water pressure may be low, dishwasher is
not filling properly
II waler pressure is low, do not use waler for olher
purposes while dishwasher is running (lo assure
correct fills).
Cloudy film on glassware, etching -
permanent corrosion
Too much detergent in soft water
Check for rainbow hue on glasses. A rarnbow
hue is Ihe firs1 sign of elching (corrosron of glass).
Reduce the amounl of dishwasher delergent.
Use a detergenl with a lower phosphorus conlent
Inadequate rinsing
If waler pressure is low do nol use waler for olher
purposes while dishwasher is running (to assure
correcl waler fills). Make sure dishes and glass-
ware are loaded properly to assure adequale
rinsing and draining. Do not overload.
Dishes 81 interior of dishwasher
yellow or brown
Iron or manganese in water
Temporary remedy:
1. Set empty dishwasher for a "one wash" cycle.
2. Start dishwasher and unlatch door to stop it
when it has filled lor the wash part of the cycle.
3. Add '/4 to % cup (120 to 240 mL) of citric acid
crystals (usually available in drugstores).
4. Close and latch door to complete cycle.
Permanent solution: Install an iron or
manganese filler or waler sottener to home
water supply.
Rust spots on stainless steel-OR - Dark
spots on flatware: stainless steel, silver
plate, or sterling
Allowing salty or acidic foods such as
mayonnaise, vinegar, fruit juices, salad
dressings, milk products to remain on
flatware
Rinse flatware that is to stand for several hours
before washing. Clean stained items wilh silver
polish and re-wash. Do not put stainless steel
and silver flatware in the same silverware baskel
comparlment. Direct contact between these met-
als can cause permanent damage to the silver.
Undissolved detergent coming in contact
with flatware
Remove spots wilh silver polish. Avoid spilling
concentrated detergent on weI flatware.
Bronze tarnish on silverplate
Silverplate is worn off. Exposed base metal
takes on a bronzed hue
Remove tarnish with silver polish. Have silver
replaled.
Water left in bottom of dishwasher
above grate
Dishwasher cycle not completed
Allow dishwasher to complele cycle. Some
remaining waler is normal and keeps seals
from drying.
Clogged drain air gap
Some plumbing codes require use of a drain air
gap between an undercounter dishwasher and
the drain system of the house. The air gap is usu-
ally located above the sink or on the lop of the
counter near Ihe dishwasher to prevent the pos-
sibility of waler backing up from Ihe drain into lhe
dishwasher due to a plugged drain. The drain air
gap is not a part of the dishwasher and is not
covered by Ihe dishwasher warranty. The drain air
gap should be kept clean to ensure proper drain-
ing of the dishwasher.
12