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UF/S (R wire)
Common (BK wire)
LF/S (DBU wire)
Upper Float (blue)
Magnet (towards top)
Magnet (towards top)
Lower Float (white)
Plastic Retainer Clip
Spring Retainer Clip
Fig. 5
2. Float Switch Cleaning
Depending on local water conditions, scale may build up on F/S. Scale on F/S can
cause inconsistent operation of UF/S and LF/S. In this case, F/S should be cleaned and
checked.
1) Move the power switch to the "OFF" position, then unplug the unit from the electrical
outlet.
2) Remove the upper rear panel. See Fig. 4.
3) Remove F/S assembly from the reservoir cover.
4) Wipe down F/S assembly with a mixture of 1 part Hoshizaki "Scale Away" and 25 parts
warm water. Rinse the assembly thoroughly with clean water.
5) While not necessary, the oats can be removed from the shaft during cleaning. If you
remove them, note that the blue oat is on top (UF/S) and the white oat is on bottom
(LF/S). See Fig. 5. The oats must be installed with the magnets inside them towards
the top of the switch. Installing the oats upside down will affect the timing of F/S
operation.
6) Rinse F/S assembly thoroughly with clean water and replace in its correct position.
7) Replace the upper rear panel in its correct position.
8) Plug the unit into the electrical outlet, then move the power switch to the "ON" position
to start the automatic icemaking process.
Legend: F/S–oat switch; LF/S–lower oat switch; UF/S–upper oat switch