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Common
Dishwashing
Problems and Solutions
Dishes
not
clean--Check
pages 4 to 9 for
information
on correct wash cycle, proper
loading,
water
temperature,
water pressure,
hard water,
amount
of detergent,
old and ineffective
detergent,
and dish placement.
Dishes not drying
can be greatly:improved
by
using a rinse aid and very hot water.
Hot water
raises temperature
of dishes
to speed up drying.
When loading,
invert cups and bowls so that water
can run off. Avoid nesting of ar'tictes, If dishes are
not completely
dr'i at end of cycle (which may
occur when
COOk, DRY setting
is used),
open door,
roll out racks, and allow dishes to air dry_
Spotting--Spots
form when
hard water' droplets
evaporate
leaving a deposit_ Low phosphate
detergents
increase
the problem
in hard water,
To
prevent,
use hot water and a detergent
with a
higher
level of phosphates
(preferably
8.7% or
higher),
or use more of a tow phosphate
detergent.
Be sure to use a rinse aid. If water is very hard, it
may be necessary
to install a water softener.
Load
glasses
and plates so they have minimum
contact
with racks and pins, ._:void overloading_
Spotting
will occur where
dishes and glasses touch.
Cloudy films and streaking
are usually
caused
by a combination
of hard water and an
insufficient
amount
of detergent,
Low phosphate
detergents
are also a factor_ To correct,
increase
amount
of detergent,
check water temperature
and
always use a rinse aid. If water is very hard, it may
be necessary
to install a water softener.
Etched
film
on glassware
is caused
by using
too much detergent
in soft or softened
water. This
film cannot
be removed.
It is more likely to occur'
on soft leaded
glass or expensive
crystal. An earIy
warning
of this condition
is a cloudy iridescent
appearance
on glasses. To prevent,
be sure
dishwasher
is getting a full fill of water. Water
should
reach base of heating
element.
If water
level is low, have water pressure
checked
by a
plumber.
Use less detergent
and make sure water
temperature
is not higher than 150°F (66°C)..
Underload
to assure
thorough
rinsing.
Use the
COOl, DRY Option.
Chipped
dishes and glasses can
result
ftom
rough handling
and improper
loading.
Do not put
glasses in direct contact
with other items,
Place
glasses securely
against
pins,
Crazing
of older china andpotter
T
happens_w.hen,
!terns are subjected
to very hot ....
water. Once crazing
(fine cracks in the glaze)
appears,
it cannot
be removed,
Do not machine
wash again or condition
may worsen.
Coffee
and tea stains
can occur when water
contains
traces of it'on. To avoid stains, rinse
cups
out immediately
after use. Increase
amount
of
detergent
and use a rinse aid, Water temperature
should be approximately
I40°F (60=C), If problem
persists,
install a water softener
with an iron
removal
unit, To remove stains, hand wash
cups in
solution
of 1/2 cup (120 ml) bleach and a quart
(1 L) of warm water. Rinse thoroughly.
Gray-black
stains
on dishes
are caused
by
manganese
in water supply,
To correct,
install
a
manganese
filtering system into house
water'
supply.
Reddish-brown
stains
on dishes,
glasses
and interior
are caused
by iron in
water,
To
avoid iron stain, increase
detergent,
use water
heated
to approximately
i40°F (60°C) and a rinse
aid. It may be necessary
to install a water
softener
with an iron removal
unit. To improve
appearance,
use a commercial
rust and lime scale remover.
Plastic
items
can lose their shape
due to high
temperatures
of automatic
dishwashing.
Read
labels before washing,
Place washable
items
in top
rack away ftom heating
element,.
Discoloration
of plastic'ware
by some
foods,
such as tomato
sauce, can stain plasticwa.re,,
t£
stained,
soak item in solution
of 1 tablespoon
dishwasher
detergent
and a quar* of hot water' or'
in a solution
of 1/2 cup (120 ml) bleach
and a
quart
(I I,) of hot water.
Fading of patterns
and metallic
trim
is due to many washings,
detergent
and hot water_
Most of today's china is dishwasher
safe. Most
antique,
handpainted
china, and handpainted
pottery should
be washed
by hand
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