Spraying From Center; Filter-Polypropylene - Electrolux FDB1050RE 2005 Service Manual

Precision Wash
The cycle starts with the check ball in the normal
position resting at the bottom of the ramp cover-
ing the outlet for the upper arm. The outlet is not
covered completely by the ball, some water does
bypass the ball entering the delivery tube for the
upper arm. The majority of the water leaves
from the center opening, into the lower spray
arm; washing is now into the lower rack.
Opening for water to by-pass check ball

SPRAYING FROM CENTER

To change the spray to the center, the control pauses
the wash motor for not more then .6 of a second.
During the pause, water pressure on the back of the
check ball decreases, this allows the water located in
the delivery tube to reenter the sump. The check ball
is moved away from the opening by the returning
water and is forced up the ramp. Now the wash
pump restarts, this creates water pressure in front of
the check ball moving it up into the center outlet
stopping the lower spray arm.
Check ball moved up ramp.
Precision Direct
5
Water exits out the side outlet leading to the center
arm and the upper rack. Water sprayed from the
center spray arm sprays both into the upper rack and
down onto the lower rack. At the same time, the
shower nozzle in top of the tub sprays water down
onto the upper rack.
To return spray to the lower spray arm, the pump is
paused for 3 seconds. This longer pause allows all of
the water to drain back into the sump from the
delivery tube and the check ball to fall back down the
ramp to recover the side outlet hole. This completes
the change cycle. This cycling between the spray
arms continues in all wash and rinse cycles.
FILTER
Polypropylene filter
This is a molded filter which covers the complete
sump area. The center of the filter has an inner
basket to direct food to the drain section of the sump.
This inner basket has sides constructed of a fine
polyester mesh and a solid bottom to keep food soil
from entering the water distribution system. The filter
is locked in place with the lower spray arm support.
Inner basket with soil director
Top of filter with spray arm suport locked in place