Electrical System
Component Specifications and Diagnostics Control
Board................................................................... 91
Harvest/Safety Limit Light...............................91
Freeze Time Lock-In Feature .........................91
Maximum Freeze Time................................... 91
Safety Limits...................................................91
Three-Minute Delay........................................ 92
Inputs.............................................................. 92
Control Board Relays...................................... 92
Main Fuse............................................................95
Function.......................................................... 95
Specifications.................................................. 95
Check Procedure............................................ 95
Bin Switch............................................................ 96
Function.......................................................... 96
Specifications.................................................. 96
Check Procedure............................................ 97
Ohm Test........................................................ 97
Water Curtain Removal Notes........................ 98
ICE/OFF/CLEAN Toggle Switch..........................99
Function.......................................................... 99
Specifications.................................................. 99
Check Procedure............................................ 99
Ice Thickness Probe (Harvest Initiation)............ 100
How the Probe Works................................... 100
Ice Thickness Check..................................... 100
Ice Thickness Probe Diagnostics.................. 101
Diagnosing Ice Thickness Control Circuitry.. 102
Water Level Control Circuitry.............................105
Diagnosing an Ice Machine Head Section
that Will Not Run ............................................... 112
Diagnosing a Condensing Unit
that Will Not Run ............................................... 113
Compressor Electrical Diagnostics....................114
Diagnosing Start Components...........................116
Electrical Diagrams............................................ 117
Ice Machine Head Section............................ 117
Condensing Unit...........................................121
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