Manitowoc EC18, Technician'S Handbook

Page: 76 / 184

Part Number 80-1479-3 10/10 63
Component Check Procedures
ON/OFF/WASH-FILL TOGGLE SWITCH
Function
The switch is used to place the ice machine in ON,
OFF or WASH mode of operation.
Specifications
Double-pole, Double-throw switch.
Check Procedure
1. Inspect the toggle switch for correct wiring.
2. Isolate the toggle switch by disconnecting all wires
from the switch.
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.
Replace the toggle switch if ohm readings do not
match all three-switch settings.
Switch
Setting
Terminals Ohm Reading
ON
5-6 Open
5-4 Closed
2-1 Closed
2-3 Open
WASH
5-4 Open
5-6 Closed
2-3 Closed
2-1 Open
OFF
2-3 Open
2-1 Open
5-6 Open
5-4 Open