Labconco Glassware Washer Service/Technical Manual
35
8.
After wash 1 fill, open door and verify water level. Shut door and
resume cycle.
9.
At wash 1 drain (wash1=4 minutes) verify valve is opening, you will
hear a click and the lever on top of valve will move [fig. 7A]. (Look
in the left side)
10.
After 3 seconds verify drain pump comes on. You can see the motor fan
[fig. 8F & 9I] turning located under the electrical box, lower right
side mounted to base.
11.
Time the Drain. The tank and sump should be completely drained, and
the pump should cavitate in under 2 minutes.
12.
If this does not operate properly check for interference with the pump
fan or the valve actuator lever. Make sure there are no wires
interfering with the valve operation.
13.
If there is no interference check the voltage to the terminals while
under load (in Diagnostics).
14.
If there is voltage, replace the part, if no voltage; check the wiring
connections at both ends.
If you replace the pump or valve make sure the drain hose doesn’t have water
in it or the pump will not prime when you restart it. That includes low points
in the hose between the tank and the drain/plumbing connection.
If both the valve and pump come on, verify water is coming out of the drain
hose.
Hose Routing
If water is not flowing out of the hose, verify that there are no low spots in
the drain hose between the pump and the high loop at the back of the washer.
Also, make sure there are no kinks in the hose [fig. 10]. The drain hose must
come from the drain pump up over the wash pump to the back of the unit.
The glassware washer must have the back loop intact after installation, if for
some reason the hose has drooped, pull the slack out of the hose and up to the
back (increasing the height of the loop) and place zip ties where indicated in
Figure 10.
Figure 9
Above Left:
Drain Hose line at pump connection. (G) Drain Hose fitting on Drain Pump. (H) Drain Hose leaving
the pump and going
over
the Wash Pump Line. This configuration is necessary for the Drain Pump to prime.
Above Right:
Drain Pump viewed from the right side of the washer. (I) Drain Pump Fan. If this fan is impeded,
the pump will not drain. (J) Drain Pump electrical connections.
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