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Section 1 Basic Information
Electronic Water Level Sensor
Electronic Water
The electronic water level sensor is mounted to the right
Level Sensor
side panel under the top of the washer and controls the
water level in the washer. (See Figure 1-9)
The electronic water level sensor is made up of an
electronic board and a bellow inside a sealed chamber.
The chamber is connected by a hose to the air bell
located at the bottom of the washer attached to the drain
boot. The electronic board reads the pressure in the
bellow and converts it into an electronic signal. This sig-
Figure 1-9. Water Level Sensor
nal is then sent to the control board which governs the
incoming water by connecting or disconnecting a neutral
line to the water solenoids.
Hot
Wash
Bleach
Water Inlet Valve Assembly
The water inlet valve assembly is made up of a plastic
housing, 2 tubes, which the inlet water hoses are
connected to, 3 solenoids and a positive thermal sensor
The hot solenoid is connected to the incoming hot water.
Figure 1-10. Inlet Water Valves
The wash and bleach solenoids share a common input
cavity that is connected to the cold water supply.
(See Figure 1-11)
The hot and wash solenoids share a common output
cavity, with the bleach solenoid having a separate output
cavity. (See Figure 1-12)
Water Valve Operation
The (3) inlet solenoid valves are identical in construction
and operation. The valve body provides an air passage
with a large orifi ce and seat where the water can be
Figure 1-11. Water Valve Inlet
stopped. The outlet of the valve body empties into a
chamber. A moveable rubber diaphragm operates
against the valve seat to start and stop the fl ow of water.
The diaphragm is operated by water pressure. It has a
small bleed orifi ce outside the seat contact area, and a
large main orifi ce at its center. The armature of the
solenoid serves to open and close the main orifi ce.
The armature operates within a closed metal tube (valve
guide) which is sealed by the outer edge of the
diaphragm to the valve body. A coil spring holds the
armature down against the diaphragm main orifi ce when
the solenoid is not energized.
Figure 1-12. Water Valve Outlet
1-8
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