Koolaire KDT0300A, Technician'S Handbook

Page: 88 / 152

88 Part Number STH063 9/17
Float Switch
Function
Open and close to indicate to the control board the level of
water in the water trough.
Specifications
Normally closed, float operated magnetic reed switch.
The float switch contacts are closed in the down position.
When water raises the float to the up position the magnet
in the float opens the contacts.
Check Procedure
The ice machine uses two float switches.
Ice Thickness Float - Indicates the water level has been
reached.
Harvest Float - Indicates a harvest cycle needs to be
initiated.
Initial testing can be performed by viewing the control
board light(s) while raising and lowering the float. The
corresponding control board light must turn on and off
when the float is raised and lowered.
Harvest Float Switch:
A. The light must be on in the up position.
B. The light must be off in the down position.
Ice Thickness Float Switch:
A. The light must be off in the down position.
B. The light must be on in the up position.