Whirlpool 900 warranty Solving Common Dishwashing Problems, continued on next page

SOLVING COMMON DISHWASHING PROBLEMS

PROBLEM	CAUSE	SOLUTION
Spotting	Use of incorrect	Use recommended dishwasher detergents
and filming	detergents	only.
(continued)	Incorrect amount	Follow recommendations for amount.
	of detergent	Heavy soil and/or hard water generally
		require extra detergent.
	Use of ineffective	Use fresh detergent. Store detergent tightly
	detergents	closed in a cool, dry place. Discard lumpy
		detergent.
	Insufficient fill due to	Home water pressure should be 20 to 120
	low water pressure	psi (138 to 828 kPa) for proper dishwasher
		fill. A booster pump on the water supply
		may be necessary if pressure is too low.
Dishes do not	Dishes do not drain	Dishes must have proper water drainage.
dry completely	properly	Do not overload. Follow instructions for
		loading dishwasher. See the “Loading Your
		Dishwasher” section on page 8. Use a liquid
		rinse agent to speed draining.
	Plastics	Some plastics, due to material, may need to
		be towel dried.
Silica film or	Water chemical reac-	It may not be possible to prevent problem,
etching	tion with certain types	except by hand washing. To slow this
(silica film is a	of glassware – usually	process, use a minimum amount of deter-
white iridescent	caused by some	gent but not less than 1 tablespoon per
deposit; etching	combination of soft or	load. Use a liquid rinse agent and under-load
is a cloudy film)	softened water,	the dishwasher to allow thorough rinsing.
	alkaline washing	Silica film and etching are permanent and
	solutions, insufficient	cannot be removed. Use the Air Dry option.
	rinsing, overloading
	the dishwasher, and
	heat of drying
Black or gray	Aluminum items	Load aluminum items so that they will not
marks on	touching dishes	rub against dishes during washing. Do not
dishes		wash throwaway aluminum items in the
		dishwasher because they may break down
		and cause marking. Remove aluminum
		markings by using a mild abrasive cleanser.
		continued on next page

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