Whirlpool WDT970SAHW User Instructions page 12

Your dishwasher has latest technology in dishwasher filtration. This filtration system minimizes sound and optimizes water and energy
conservation while providing superior cleaning.
The filter system consists of 2 parts an upper filter assembly and a lower filter.
IMPORTANT: To avoid damage to dishwasher, do not operate your dishwasher
without filters properly installed. Be sure lower filter is securely in place and upper
filter assembly is locked into place. If upper assembly turns freely, it is not locked
into place.
The filters may need to be cleaned when:
Visible objects or soils are on the upper filter assembly.
■
Dishes feel gritty to the touch.
■
It is very easy to remove and maintain the filters. The chart below shows the recommended cleaning frequency.
Number of Loads Per Week
8–12
4–7
1–3
*We recommend this practice because it will conserve the water and energy that you would have used to prepare your dishes. This will
also save you time and effort.
Very Hard Water
If you have hard water (above 15 grains), clean your filter at least
once per month. Buildup of white residue on your dishwasher
indicates hard water. For tips on removing spots and stains, see
the "Troubleshooting" section.
Filter Removal Instructions
1. Turn the upper filter assembly ¼ turn counterclockwise
and lift out.
Locating tab
2. Separate the upper filter assembly by gently pulling apart.
3. Clean the filters as shown.
Cleaning Instructions
IMPORTANT: Do not use wire brush, scouring pad, etc., as they
may damage the filters.
Rinse filter under running water until most soils are removed.
If you have hard-to-remove soils or calcium deposits from hard
water, a soft brush may be required.
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Filtration System
RECOMMENDED TIME INTERVAL TO CLEAN YOUR FILTER
If you only scrape
before loading*
Every 2 months
Every 4 months
Twice per year
To remove upper filter assembly
If you scrape and rinse
before loading
Every 4 months
Once per year
Once per year
Filter Reinstallation Instructions
1. Noting the previous illustrations, place the lower filter under
the locating tabs in the bottom of the dishwasher, so the
round opening for the upper filter assembly lines up with
the round opening in the bottom of the tub.
2. Insert the upper filter assembly into the circular opening
in the lower filter.
To replace upper filter assembly
3. Slowly rotate the filter clockwise until it drops into place.
Continue to rotate until the filter is locked into place. If the
filter is not fully seated (still turns freely), continue to turn the
filter clockwise until it drops and locks into place.
NOTE: The upper filter assembly arrow does not have to align
with the arrow in the lower filter as long as the filter is locked.
IMPORTANT: To avoid damage to dishwasher, do not operate
your dishwasher without the filters properly installed. Be sure the
lower filter is securely in place and the upper filter assembly is
locked into place. If the upper filter assembly turns freely, it is not
locked into place.
Upper filter
assembly
Lower filter
If you wash before loading
Once per year
Once per year
Once per year
Locating tab