Problems - Whirlpool DU7400XS series Use & Care Manual

Common dishwashing problems
PROBLEM CAUSED BY SOLUTION
Spotting and Hard water
filming
Water is not
hot enough
Fill detergent dispensers to capacity Use dishwasher de-
tergent with highest available phosphorus content May
be necessary to install water softener.
To remove spots and film, try a vinegar rinse.
1 Wash and rinse load as usual. Use AIR DRY.
2 Remove all metal items.
3. Put 2 cups [500 mL) white vinegar in a container on the
bottom rack.
4. Run dishwasherthrough a complete washing cycle
Water temperature should be at least 140_F [60 C]. Set
water heater thermostat to a higher setting. Run water at
sink until hot before starting.
Not enough
detergent, or
improper detergent
"Old" detergent
Improper loading
No rinse aid
AIR DRY Setting used
Use more dishwasher detergent. Use detergent with high-
est available phosphorus content...especially with hard
water
Use only fresh dishwasher detergent. Store tightly closed
container in cool, dry place. Discard old detergent. Do not
fill dispensers until ready to start dishwasher.
Make sure dishes and glassware are loaded so spray
reaches all surfaces and items drain properly. Do not ov-
erload Do not nest items.
Make sure large items do not block spray from reaching
detergent dispensers.
Does the rinse aid dispenser need filling? See instructions
on page 7.
Drying without heat may result in some spotting of glasses
and silver.
Small particles
deposited on
Items
Spray arm or arms not
rotating freely
"Old" detergent
Not enough
detergent, or
improper detergent
Water is not hot
enough
Check spray arms to make sure they turn freely after load-
ing. Be sure a utensil has not prevented their turning.
Use only fresh dishwasher detergent. Store tightly closed
container in cool, dry place. Discard old detergent. Do not
fill dispensers until ready to start dishwasher.
Use more dishwasher detergent. Use detergent with high-
est available phosphorus content_especially with hard
water
Water temperature should be at least 140 F (60 C). Set
water heater thermostat to a higher setting. Run water at
sink until hot before starting.
Dishes not dry
Water pressure may
be low, dishwasher _s
not filling properly
Water is not hot
enough
If water pressure is low, do not use water for other purposes
while dishwasher is running [to assure correct fills].
Water temperature should be at least 140_F (60 C). Set
water heater thermostat to a higher setting. Run water at
sink until hot before starting.
Black marks on
dishes
Improper loading
No rinse aid
AIR DRY Setting used
Aluminum utensils
rubbing against items
during washing
Make sure dishes and glassware are loaded so spray
reaches all surfaces and items drain properly. Do not ov-
erload Do not nest items
Fill rinse aid dispenser
Allow more time when using AIR DRY Option, or use HEAT
DRY. Plastic items may need towel drying.
Use care In loading alumlnum utenslls, especlally any
llghtwelght foil contalner. Place so they do not touch
dishes. Remove black marks with plastic scouring pad
and a mild abrasive cleanse[
Chipping or
breaking
glassware
Improper loading
Do not overload. Load glasses in the top rack only. Load
between prongs, not over them. Glasses loaded over
prongs will not be supported and may chip or break
12