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Common Dishwashing Problems
Continued
Dishes not washing clean
Water is not hot enough
Water temperature should be at least 140°F
(60%). Set water heater thermostat to a higher
setting. Run water at sink until hot before starting.
Improper loading
Make sure dishes and glassware are loaded
so spray reaches all surfaces and items drain
properly. Do not overload. Do not nest items.
Make sure large items do not block spray from
reaching detergent dispensers.
Spray arm not rotating freely
Check spray arm to make sure it turns freely
after loading. Be sure a utensrl is not sticking out
the bottom of the silverware basket and blocking
the spray arm from turning.
Not enough detergent or improper
detergent
Use more dishwasher detergent. Use detergent
with highest available phosphorus content..
especially with hard water.
“Old” detergent
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.
Water pressure may be low, dishwasher is
not filling properly
If water pressure is low, do not use water for other
purposes while dishwasher is running (to assure
correct fills).
Cloudy film on glassware, etching -
permanent corrosion
Too much detergent in soft water
Check for rainbow hue on glasses. A rainbow
hue is the first sign of etching (corrosion of glass).
Reduce the amount of dishwasher detergent.
Use a detergent with a lower phosphorus content.
Inadequate rinsing
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 glass-
ware are loaded properly to assure adequate
rinsing and draining. Do not overload.
Dishes 8 interior of dishwasher
yellow or brown
Iron or manganese in water
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 ‘/4 to % cup (120 to 240 mL) of citric acid
crystals (usually available in drugstores).
4. Close and latch door to complete cycle.
Permanent solution: Install an iron or
manganese filter or water softener to home
water supply.
Rust spots on stainless steel - OR - Dark
spots on flatware: stainless steel, silver
plate, or sterling
Allowing salty or acidic foods such as
mayonnaise, vinegar, fruit juices, salad
dressings, milk products to remain on
flatware
Rinse flatware that is to stand for several hours
before washing (use the Rinse & Hold Cycle).
Clean stained items with silver polish and re-wash.
Do not put stainless steel and silver flatware in
the same silverware basket compartment. Direct
contact between these metals can cause perma-
nent damage to the silver.
Undissolved detergent coming in contact
with flatware
Remove spots with silver polish. Avoid spilling
concentrated detergent on wet flatware.
Bronze tarnish on silverplate
Silverplate is worn off. Exposed base metal
takes on a bronzed hue
Remove tarnish with silver polish. Have silver
replated.
Water left in bottom of dishwasher
above grate
Dishwasher cycle not completed
Allow dishwasher to complete cycle. Some
remaining water is normal and keeps seals
from drying.
Clogged drain air gap
Some plumbing codes require use of a drain
air gap between 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 par-l 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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