Service Manual

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