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SECTION H - WATER SYSTEM
Water Systems
Water for the ice maker and water dispenser is controlled
by a dual coil valve and a single coil valve joined together
as one. It’s mounted just to the right of the condenser on
the cabinet. Plastic tubing connects the water valve/valves
to the ice maker fill tube, the water dispenser and water
filter on models so equipped.
Water Valve
Next Generation models have 1 dual coil valve and 1 single
coil valve (see figure H1). The green coil on the dual coil
valve is for the ice maker and the yellow coil is for the
water dispenser. The beige coil on the single coil valve is
energized for both water for the ice maker and water for
the dispenser. Plastic tubing connects the primary water
valve to the filter, water tank and to the secondary valve.
On models with a single coil valve for a primary, you have
2 diodes in the wiring harness connecting the coil of the
single coil valve to the 2 coils of the dual coil valve. The
diodes are used to prevent current leakage from opening
both coils on the dual coil valve everytime the single coil
valve is energized.
If a diode is shorted, when the single coil valve opens,
current leakage through the shorted diode will cause both
coils on the secondary valve to open and you’ll have water
going into the ice maker and coming out the door at the
same time. If the the diode fails in the open position, the
coil on your secondary valve will open, but the coil on the
primary valve will not. As a result, you will not get water to
the ice maker or dispenser. Both doides can be checked
with an ohmmeter to see if they are opened or shorted.
The coils on all water valves can be checked with an
ohmmeter to see if the coils are opened or shorted. If the
coil checks bad, replace the coil. If the coils check good
and water pressure is between 20-120 psi, and the valve
will not allow water to flow through, replace the valve. It is
not necessary to replace the whole valve assembly if one
coil is bad. The two valves can be separated by inserting
a screwdriver at point A as shown in Figure H1.
PureSouce Water Filters
Next Generation models can have either a Front Filter (see
Figure H2) or a Rear Filter (see figure H3). The water filter
must be changed at a minimum of twice a year. But, under
certain water conditions such as large concentrations of
calcium, alkali, or other particulate matter in the water, a
filter may require changing more frequently. A good way to
judge whether the filter needs to be replaced is when the
water flow to the dispenser starts slowing down and there
has been no change to the water pressure to the product.
Operating water pressure should be a minumum of 20-
120 psi.
Base
Filter
Release
Button
Retainer
Filter
Release
Rod
Front Filter
Label
Light Pipe
PureSource2 (Front Filter)
Water Valve Assembly
Figure H1
A
Figure H2
Elbow
Housing
Filter Cup
Filter
Cover
Cover
PureSourcePlus (Rear Filter)
Figure H3
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