Service Manual

37
19) Disconnect F/S connector from CB K5 (black) connector.
20) Check for continuity across F/S leads. With the water tank full, F/S should be closed. If
F/S is closed and the icemaker will not switch from the 1-minute ll cycle to the initial
harvest cycle, replace CB.
21) If open, conrm that the water tank is full. If the water tank is not full, check the water
supply, water lters, and inlet water valve. If the water tank is full, follow the steps in
"IV.D.2.FloatSwitchCleaning."AftercleaningF/S,checkitagain.Replaceifnecessary.
Legend: CB–control board; F/S–oat switch
2. Float Switch Cleaning
Depending on local water conditions, scale may build up on F/S. Scale can cause F/S to
stick. In this case, F/S should be cleaned.
1) If not already off, turn off the power supply.
2) Remove the front, top, and left side panels, then remove the insulation panel. Move the
controlswitchtothe"OFF"position.
3) Disconnect the distributor from the distribution hose. Remove the thumbscrew securing
cube guide B. Remove cube guide B and cube guide A. See Fig. 4.
4) Remove the overow cap and overow pipe.
5) Remove the drain plug. Allow the water tank to drain, then replace the drain plug in its
correct position. Be careful not to cross thread it.
6) Replace the overow pipe, overow cap, cube guide A, and cube guide B in their correct
positions. Be careful not to cross thread the overow pipe.
7) Reconnect the distributor to the distribution hose.
8) Disconnect the vent tube and the ush tube from the top of F/S, then remove F/S
assembly from the mounting bracket and remove the rubber boot from the bottom of
F/S assembly. See Fig. 5.
9) Remove the retainer rod from the bottom
of F/S assembly, then remove the oat.
Be careful not to bend the retainer rod
excessively when removing it.
10) Wipe down F/S assembly's housing, shaft,
oat, and retainer rod with a mixture of 1
partHoshizaki"ScaleAway"and25parts
warm water. Clean the inside of the rubber
boot and hose with cleaning solution. Rinse
the parts thoroughly with clean water.
11) Reassemble F/S assembly and replace
it and the rubber boot in their correct
positions. Reconnect the vent tube and the
ush tube.
12)Movethecontrolswitchtothe"ICE"position.
Float
Float Switch
Housing
Rubber Boot
and Hose
Retainer Rod
Flush
Vent
Shaft
Fig. 5