Wexiodisk WD-90 DUO Installation And User Manual page 43

Using the dishwasher
Check:
Problem:
Misting
Food residues
Protein residues
Visible as
discolouration or
marks on
canteens used to
fry e.g. meatballs,
hamburgers or
fish
Detergent
residues
Not visible on the
washed items but
identifiable by
chemical means
(phenolphthalein)
X X
X X X
X
X X
Scraping – It is important that as much food residue as possible is scraped off
the items before putting them in the machine. Proper scraping will mean the water
in the washer tank will not need changing as often.
Detergent and drying agent dosage – The dosage of the detergent and drying
agent will also affect the wash result. If too high or too low a dosage is suspected,
the detergent supplier should be contacted. There is the option of fitting a sensor
in the tank to measure detergent concentration in the water. Using this, detergent
can be added automatically to achieve the right dosage. Contact your detergent
supplier.
Water change – The water in the tank should be changed at least once a day dur-
ing normal use of the dishwasher. In certain cases, e.g. if many or highly soiled
items are washed, it may be necessary to change it more often.
Water turnover – If water turnover in the machine is not good enough, this can
lead to problems such as starch spots on glass and on the undersides of plates.
Contact the service company for help in dealing with the problem.
Temperature – If the temperature during washing and the final rinse is too low,
the items in the wash will not emerge clean. If you suspect this is the case, contact
the service company.
If normal wash items are rinsed (pre-rinsed) before being put in the dishwasher,
WD-90 DUO
Temperature Program
selection
X X X
X
X
39
Rev. 0 (201401)
X X
X X X
X
X
X