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6.3 circUlation pUmp
The circulation pump is used to circulate the water in the reservoir over the evaporator. The circulation pump will run only during
ice production cycle and turn o in ice harvest cycle and also when called on for the clean cycle.
The pump is a centrifugal impeller type pump. The pump and motor are an assembly that cannot be repaired separately.
To check the circulation pump (with the pump removed):
Make sure motor shaft turns freely. This can be done by rotating the pump’s drive shaft and observing any excessive resis-•
tance. Axial motor shaft movement (thrust) is typical.
Check for resistance between the terminals. If no resistance is found, replace the circulation pump.•
Check for continuity between the hot and neutral terminals and the pump’s motor casing. If continuity is found, replace the •
circulation pump.
Check current draw. Typical current draw will be 0.36 amp without pump resistance. If excessive current draw is found, check •
the pump’s impeller for foreign particles or severe build-up of mineral deposits.
The circulation pump can run dry without pump damage.•
Removing the Circulation Pump:
Disconnect power to the Ice Maker.1.
Remove the escutcheon panel from inside the unit.2.
Remove the cutter-grid (see Section 6.1, Cutter-Grid).3.
Remove the ice deector.4.
Remove the reservoir (see Section 6.2, Reservoir).5.
Unplug the circulation pump at the receptacle at the top of the circulation pump (see Figure 6.6).6.
Disconnect the water line attached to the circulation pump (see Figure 6.6).7.
Remove the two screws that secure the circulation pump (see Figure 6.6).8.
Remove the circulation pump.9.
Installing the Circulation Pump:
Reverse the removal procedure for installation (see above).
Figure 6.6
Circulation pump plug
Screws
Circulation pump
Water line
INTERIOR COMPONENTS