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2. Float Switch Cleaning
Depending on local water conditions, scale may build up on FS. Scale on the switch can
cause the oat to stick. In this case, FS should be cleaned.
1) Turn off the power supply.
2) Remove the front panel, then move the control switch to the "OFF" position.
3) Remove the insulation panel, then remove the drain plug located on the lower front part
of the ice chute. See Fig. 1. Allow the water tank to drain.
4) Replace the drain plug in its correct position. Be careful not to cross thread it.
5) Disconnect the vent tube and the ush tube from the top of FS, then remove FS
assembly and remove the rubber boot from the bottom of FS assembly. See Fig. 2.
6) Remove the retainer rod from the bottom of FS housing, then remove the oat.
Becareful not to bend the retainer rod excessively when removing it.
7) Wipe down FS housing, shaft, oat, and retainer rod with a mixture of 1 part Hoshizaki
"Scale Away" and 25 parts warm water. Clean the inside of the rubber boot and hose
with cleaning solution. Rinse the parts thoroughly with clean water.
8) Reassemble FS assembly and replace it and the rubber boot in their correct positions.
Reconnect the vent tube and the ush tube.
9) Move the control switch to the "ICE" position.
10) Replace the insulation panel and front panel in their correct positions.
11) Turn on the power supply to start the automatic icemaking process.
Legend: CB–control board; FS–oat switch
Float
Float Switch
Housing
Rubber Boot
and Hose
Retainer Rod
Flush
Vent
Shaft
Fig. 2