Electrolux FMB330RGB0, Service Manual

Page: 9 / 27

9
Sump
The sump is a reservoir used by the wash pump to collect
water before spraying it onto the dishes. The sump on this
dishwasher has ports for the wash pump, the drain pump,
the fill hose from the air gap and the pressure tube to the
over flow pressure switch. The sump is mounted under
the tub with a gasket to seal it to the tub and is locked in
place with a locking ring from inside the tub. This locking
ring turns counterclockwise to unlock the sump.
Port for the wash pump
Port for the drain
pump
Port for the
water inlet
Port for the pressure tube
Port for
wash pump
Port for drain pump
Delivery tube
The delivery tube supplies water to the center spray arm
in the wash and rinse cycles. The deliver tube consists of
two tubes; one from the wash pump up the outside back
wall of the tub, the second mounted to the upper rack.
The section from the wash pump is secured at the top
by a locking nut on the inside of the tub. The tube has a
gasket at the end on the outside of the tub to form a water
seal. The second tube that is mounted to the upper rack
snaps in place to the under side of the rack so it moves in
and out with the rack. This tube has the center spray arm
mounted to it. .
Door hinge and Door Springs
The two door hinges are in one assembly. This assembly
is attached to the frame by two hinge pins and locked in
place with two lock washers. The inner door panel mounts
to the hinge assembly with 2 screws on each side of the
assembly. The door springs then mount vertically from
the hinge arms to locator pins, one on each side of the
tub. These pins pass through the side frame and allow for
adjustment of the springs. If the door needs more tension,
the locator pin is pulled out and raised to a higher hole
location. If the tension is too great, it can be lowered. To
make spring adjustments, the dishwasher will have to be
pulled forward to access the pins.
hinge arm
spring
locator pin
Door seal
The door seal seals the area between the tub and the inner
door panel to prevent water leaks. The door seal around
the tub is all one piece and presses into a channel formed
around the inside of the tub. This seal is not glued to the
tub but is just pressed into the channel. When installing
this seal you will find there is an inside and an outside to
the seal. You must start by checking the ends of the seal.
There is a shaved edge, 6 inches up on both ends. This is
the inside of the seal. Once the inside and out side have
been determined, fold the gasket to find the center then
press the seal in to the channel, starting at the top in front
of the strike. Next go to the bottom. Have the bottom of
the seal touch the tub bottom on both sides and press the
seal in to the channel in one spot. From there go to the
top corner and press the seal in at that location, repeating
the same for the opposite side. Complete the installation
by forming the gasket into the channel the rest of the way
up both sides. Close the door to seat the seal. There is a
bottom door seal mounted to the base of the inner door
panel and this seal is non replaceable. If it comes loose
or is pulled away from the panel, the inner door panel will
need to be replaced.
Tub rollers
The rollers for the upper rack glides are on mounts with
two rollers each. There are two sets on each side of the
tub.
There are two screws per roller set and for
added strength on the outside of the tub
these screws pass through the frame of the
unit. The roller sets each have o-rings on the
inside of the tub for water seals. To replace
the tub rollers the dishwasher will need to be
removed from under the counter top.