Whirlpool DU9900XR Dishwasher User Manual


 
Common dishwashing problems
PROBLEM
CAUSED BY
SOLUTION
Spotting and
fllmlng
[hard water film)
Small particles
deposlted on
items
Dishes not dry
Black marks on
dishes
Chlpping or
breaking
glassware
Hard water
Water is not
hot enough
Not enough
detergent, or
improper detergent
“0ld”detergent
Improper loading
No rinse aid
AIR DRY Setting used
Spray arm or arms not
rotating freely
“Old” detergent
Not enough
detergent, or
improper detergent
Water is not hot
enough
Water pressure may
be low, dishwasher IS
not filling properly
Water IS not hot
enough
Improper loading
No rinse aid
AIR DRY Setting used
Aluminum utensils
rubbing against items
during washing
Improper loading
Fill detergent dispensers to capacity. Use dishwasher de-
tergent with highest available phosphorus content. May
be necessary to install water softener.
To removespots 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 dishwasher through a complete washing cycle.
Water temperature should be at least 14O’F (60°C). Set
water heater thermostat to a higher setting. Run water at
sink until hot before starting and/or use HI-TEMP WASH
Option.
Use more dishwasher detergent. Use detergent with high-
est available phosphorus content ..especlally with hard
water.
Use only fresh dishwasher detergent. Store tightly closed
box or bottle, 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.
Check spray arms to make sure they turn freely after load-
ing. Be sure a utensil has not prevented theirturning
Use only fresh dishwasher detergent. Store tightly closed
box or bottle, 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 ovalIable phosphorus content. especially wtth 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 and/or use HI-TEMP WASH
Option
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 (6O’C). Set
water heater thermostat to a higher setting. Run water at
sink until hot before starting and/or use HI-TEMP WASH
Option
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 loadlng alumlnum utensils, especially any
llghtwelght foil container. Place so they do not touch
dlshes. Remove black marks with plastic scouring pad
and a mild abrasive cleanser.
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.