Whirlpool DU7400XS manual Caused by

PROBLEM

Dishes not washing clean

Cloudy film on glassware, etching - permanent corrosion

Dishes & lnterlor of dlshwasher yellow or brown

CAUSED BY

Water is not hot enough

Improper loading

Spray arm or arms not rotating freely

Not enough detergent or Improper

detergent

“0ld”detergent

Water pressure may

be low, dishwasher is not filling properly

Too much detergent in soft water

Inadequate rinsing

Iron or manganese in water

SOLUTION

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.

Make sure dishes and glassware are loaded so spray reaches all surfaces and items dram properly. Do not ov- erload Do not nest items

Make sure large items do not block spray from reaching detergent dispensers

Check spray arms to make sure they turn freely after load- ing Be sure a utensil has not prevented their turning.

Use more dishwasher detergent Use detergent with high-

est available phosphorus contenttespeciolly 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.

If water pressure is low, do not use water for other purposes while dtshwasher is running (to assure correct fills).

Check for rainbow hue on glasses A rainbow hue is the first sign of etching (corrosron of gloss] Reduce the amount

of dishwasher detergent Use a detergent with 0 tower phosphorus content.

If water pressure IS low do not use water for other purposes

while dishwasher is running (to assure correct Water fills). Make sure dishes and glassware are loaded properly to

assure adequate rinsing and draining. Do not overload.

Temporary remedy:

I, Set empty dishwasher for a “one wash”cycle.

2.Start dishwasher and unlatch door to stop it when it has filled for the wash part of the cycle

3Add ‘& to I~2cup (120 lo 240 mL) of citric acid crystals

[usually available in drugstores).

4.Close and latch door to complete cycle

Permanent solution: lnstoll an iron or manganese filter to home water supply

Rust	spots		on	Allowing		salty		or
stalnless		steel		acidic	foods			such	as
	-OR-			mayonnaise,				vinegar,
Dark	spots		on	fruit juices,			salad
flatware		-		dressings,		milk
stalnless		steel,		products		to	remain		on
sliver	plate,		or	flatware.
sterllng				Undissolved
				detergent		coming			in
				contact		with		flatware
Bronze		tarnish		Silverplate			ts worn		off
on silverplate				Exposed		base		metal
				takes	on	a	bronzed
				hue.

Rinse flatware that is to stand for several hours before washing (use Rinse & Hold]. Clean stained items with silver polish and re-wash. Do not put stalnless steel and sliver

flatware In the same sllverware basket compartment. Direct contact between these metals can cause perma- nent damage to the sliver.

Remove spots with silver polish. Avoid spilling concentrated detergent on wet flatware.

Remove tarnish with silver polish. Have silver replated.

Water	left in	Dishwasher	cycle	not
bottom	of	completed
dishwasher		Clogged	drain	air

gap

Allow dishwasherto complete cycle

Some plumbing codes require use of a drain air gap be-

tween an undercounter dishwasher and the drain system of the house. The air gap is usually located above the sink or on the top of the counter near the dishwasher to prevent the possibility of water backing up from the drain into the dish- washer due to a plugged drain. The drain air gap is NOT a

part of the dishwasher and is NOT covered by the dish- washer warranty. The drain air gap should be kept clean to ensure proper draining of the dishwasher.