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35
2. Float Switch Cleaning
Depending on local water conditions, scale may build up on FS. Scale on FS can cause
the oats to stick. In this case, FS should be cleaned and checked.
1) Turn off the power supply.
2) Remove the oat switch assembly from the reservoir cover. See Fig. 7.
3) Wipe down FS assembly with a mixture of 1 part Hoshizaki "Scale Away" and 25 parts
warm water.
4) 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. The oats must be installed with the
magnets inside them towards the top of the switch. See Fig. 6. Installing the oats
upside down will affect the timing of FS operation.
5) Rinse FS assembly thoroughly with clean water and replace in its original position.
Legend: CB–control board; FS–oat switch; GM–gear motor; LFS–lower oat switch;
UFS–upper oat switch; WV–inlet water valve
Reservoir
Reservoir Cover
Float Switch Assembly
Fig. 7
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