Haier DW-8888-22 Service Manual page 15

Main Filter: The purpose of this filter is to trap food and soil particles.
Coarse Filter: The purpose of this filter is to trap large items such as pieces of bone
or glass that might clog the drain - attached to main filter.
Fine Filter: The purpose of this filter is to trap and hold tiny soil and food residue
and prevent it from being re-deposited on the dishes during a cycle.
Warning: Never run your dishwasher without the filters in place.
Failure to do so may cause drain blockage and pump damage.
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