Float Switch Cleaning - Hoshizaki KM-230BAJ Service Manual

11) Disconnect the connector of the FS lead.
12) Check for continuity across FS leads. With the water tank full, FS should be closed.
If FS is closed and the icemaker will not switch from the 1-min. fill cycle to the initial
harvest cycle, replace CB.
If FS is open, confirm that the water tank is full. If the water tank is not full, check the
water supply, water filters, and inlet water valve. If the water tank is full, follow the
steps in "II.E.2. Float Switch Cleaning." After cleaning FS, check it again. Replace if
necessary.
Legend: CB–control board; FS-float switch

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.
2) Drain out the water tank by leaving the control switch in the "SERVICE" position and
the service switch in the "DRAIN" position until the tank is empty.
3) Move the control switch to the "OFF" position, then unplug the appliance.
4) Remove the top panel, rear panel and right side panel.
5) Disconnect the connector of the FS lead. Remove the two mounting screws and FS.
6) Wipe down shaft and float with a mixture of 1 part Hoshizaki "Scale Away" and 25
parts warm water. Rinse the parts thoroughly with clean water.
Lift off
22
Float Switch
Fig. 3