Hoshizaki KM-81BAJ Service Manual page 26

2. Float Switch Cleaning
Depending on local water conditions, scale may build up on FS. Scale on the switch can
cause the float to stick. In this case, FS should be cleaned.
1) Remove the louver, move the control switch to the "OFF" position, then unplug the
icemaker from the electrical outlet.
2) Disconnect the silicone hose to drain the water, then after all the water has drained
reconnect the silicone hose back in its correct position. See Fig. 4.
3) Remove the top and upper rear panels.
4) Disconnect the FS/CB 2-pin connector (1 black (BK) wire and 1 red (R) wire coming
from FS and 2 red (R) wires coming from CB K1 connector pins 1 and 3).
KM-81BAJ, KM-116BAJ
5) Remove the water tank. Next, remove the screw securing the FS, then remove the FS.
See Fig. 5.
KM-161BAJ, KM-161BWJ
5) Locate the FS behind the pump motor. Next, as shown in Fig. 6 pinch the FS bracket
where indicated (1) and pull it forward diagonally (2) to unhook the FS, then remove the
screw securing the FS to the bracket.
Fig. 5
6) Remove the retainer clip from FS shaft, then remove the float. Be careful not to damage
or lose the retaining clip when removing it. See Fig. 7.
7) Wipe down FS housing, shaft, float, and retainer clip with a
mixture of 1 part Hoshizaki "Scale Away" and 25 parts warm
water. Rinse the parts thoroughly with clean water.
8) Reassemble FS assembly, then replace and secure the
removed parts in the reverse order of the removal procedure.
9) Replace the upper rear and top panels.
10) Plug the icemaker into the electrical outlet.
11) Move the control switch to the "ICE"
position to start the automatic icemaking
process.
12) Replace the louver in its correct position.
Legend: CB–control board; FS–float switch
Float Switch
26
Fig. 6
Fig. 7
Float Switch
Bracket
Float Switch
Mounting Screw
Float Switch
Float Switch
Housing
Float Switch
Shaft
Float Switch
Retainer Clip
Float Switch
Float