16
4.1 Drain valve
The drain valve drains water that is left in the reservoir after ice production. The valve will only be open for a xed time of 45
seconds during the beginning of the harvest cycle.
The drain valve fails by allowing water to ow into the drain during the ice production cycle (leak-by). This can be caused by a for-
eign particle(s) or build-up of mineral deposits that will not allow the valve to fully seat or has caused damage to the seat of the
valve. Periodic cleaning of the Ice Maker will keep build-up o the valve allowing it to work properly and should be done before
further evaluation of the valve.
Symptoms of this include thin or no ice slab (depending on severity of leak) and, more noticeably, water drainage through to the
drain during ice production cycle (do not mistake this for reservoir run-o water or melted ice drain water from the ice bin). The
drain valve should be replaced if it is found to be leaking.
The drain valve solenoid actuator can also possibly fail. Test the solenoid by checking the resistance. A resistance of 50-65 ohms
should be found. If no resistance is found, the drain valve will need to be replaced.
Removing the Drain Valve:
Drain water in the reservoir by removing the drain plug or switching to the “CLEAN” switch position and then to the “OFF” 1.
position. Replace the drain plug, if this method is used, after the water has been drained.
Disconnect power, water line, and drain line. If a drain pump is used, it will need to be disconnected and removed.2.
Remove the back panel and lower shroud (see Figure 3.3).3.
Remove the brown wire and white wire at the drain valve terminals.4.
Loosen the hose clamps on each side of the drain valve (see Figure 4.1).5.
Remove the two screws securing the drain valve (see Figure 4.1).6.
Remove the drain valve.7.
Installing the Drain Valve:
Reverse the removal procedure for installation (see above). It is important to keep the valve clean during installation to assure
proper performance. After installation, make certain the hose clamps are secure and that the valve or tubing does not leak. This
can be done by adding water to the reservoir and observing for any leaks from the tubing connections or the valve itself. Also, at
this time, make certain that the drain tee-tting ow restrictor is in place (see Figure 4.2). Reposition as needed or order replace-
ment.
Figure 4.1
Figure 4.2
Hose clamps
Screw
Drain valve
Drain tee-tting
Drain ow restrictor in this location
SYSTEM COMPONENTS
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