On/Off/Wash Toggle Switch - Koolaire KY0275W Technician's Handbook

ON/OFF/WASH Toggle Switch

Function
The switch is used to place the ice machine in ON, OFF or
WASH mode of operation.
Specifications
Single-pole, double-throw switch. The switch is
connected into a varying low D.C. voltage circuit.
Check Procedure
NOTE: Because of a wide variation in D.C. voltage, it is not
recommended that a voltmeter be used to check toggle
switch operation.
1. Inspect the toggle switch for correct wiring.
2. Isolate the toggle switch by disconnecting all wires
from the switch, or by disconnecting the Molex
connector from the control board.
3. Check across the toggle switch terminals using a
calibrated ohmmeter. Note where the wire numbers
are connected to the switch terminals, or refer to the
wiring diagram to take proper readings.
Switch Setting
ON
WASH
OFF
Replace the toggle switch if ohm readings do not match
all three-switch settings.
98
Terminals
24-21
24-20
20-21
24-20
24-21
20-21
24-20
24-21
20-21
Part Number STH047 5/16
Ohm Reading
Open
Closed
Open
Open
Closed
Open
Open
Open
Open