Koolaire STH045 8/15 Technician's Handbook page 91

If the control board light does not respond to the float
proceed with step 1 below.
1. Disconnect power to the ice machine and pull the
float switch and connector through the ice
machine base and disconnect.
2. Attach an ohm meter lead to each float switch
wire.
3. Place the float in the down position - The float
switch must be closed.
4. Place the float in the up position - The float switch
must be open.
5. If the float tests good, ohm the interconnecting
wires to the control board and inspect connectors.
NOTE: Make adjustments with the ice machine in the
off position. Making adjustments during the freeze
cycle may produce an initial sheet of ice that is thicker
than future cycles.
ICE
THICKNESS
FLOAT
Part Number STH045 8/15
HARVEST
FLOAT
SWITCH
91