1. find your washer model number at:
2. maybe: "Measure the temperature of the water in the washing machine
because the temperature will drop as the water travels from the water
heater to the washing machine. For each one foot of water pipe the
temperature drops one degree. Detergent and appliance manufacturers
agree that detergent effectiveness declines rapidly in water below 70
degrees F (21 degrees C). Cold water washes are not economically sound;
no detergent is effective in water below 60 degrees F (16 degrees C).
Most fibers can be washed in hot water except woolly acetate, olefin
(polypropylene) and some acrylics. Permanent press fabrics will wrinkle
more when washed in hot water. However, if permanent press articles are
heavily soiled you will get better results by using hot water, plenty
of detergent and your iron.
While hot water is still best for cleaning clothes, studies show that
most consumers use warm water washes more frequently than either hot or
cold. A warm wash is a fifty/fifty mixture of hot and cold water. Keep
in mind that the temperature of your cold water varies considerably
depending on the season and geographic location. As long as the water
temperature does not fall below 70 degrees F (21 degrees C), you will
still be getting your clothes clean.
Hot or warm water is not necessary for rinsing. Cold water rinsing is
just as effective and does save fuel costs.
If lower water temperatures are used in the wash cycle, consumers
should presoak, pretreat heavily soiled areas, agitate longer, and use
additional detergent. For cold water washes, use one and one-half the
recommended amount of detergent and dissolve the detergent prior to
adding it to the wash water."