Whirlpool DU9900XR manual Caused by

PROBLEM

Dishes not washing clean

Cloudy film on glassware, etching - permanent corrosion

Dlshes & 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 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

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 content...especially 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.

If water pressure is low, do not use water for other purposes while dishwasher is running [to assure correct fills].

Check for rainbow hue on glasses A rainbow hue IS the first sign of etchtng (corrosion of glass). Reduce the amount

of dishwasher detergent Use a detergent with a lower 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.

3.Add l/4 to IV2cup (120 to 240 ml) of citric acid crystals

(usually ovailable In drugstores).

4 Close and latch door to complete cycle

Permanent solution: Install an Iron or monganese 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
sllver	plate,		or	flatware.
sterling				Undissolved
				detergent		coming		tn
				contact	with		flatware
Bronze		tarnish		Silverplate		is worn		off
on silverplate				Exposed		base	metal
				to kes 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 dishwasher to 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

dishwasher due to a plugged drain. The drain air gap is

NOT a part of the dishwasher and is NOT covered by the

dishwasher warranty The drain air gap should be kept clean to insure proper draining of the dishwasher.

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