Service Manual

6 Part Number 8014793 6/18
Sequence of Operation
Self Contained Air or Water Cooled . . . . 49
Single & Quad Evaporator Models . . . 49
Safety Timers . . . . . . . . . . . . . . . . . . . . . . 54
Safety Limits . . . . . . . . . . . . . . . . . . . . . . 55
Remotes . . . . . . . . . . . . . . . . . . . . . . . 62
Troubleshooting
Safety Limits . . . . . . . . . . . . . . . . . . . . . . 69
Quad Evaporator Machines Only . . . . 70
Analyzing Why a Safety Limit Stopped the
Ice Machine . . . . . . . . . . . . . . . . . . . . 72
Safety Limit #1 . . . . . . . . . . . . . . . . . . 73
Safety Limit #2 . . . . . . . . . . . . . . . . . . 74
Safety Limit #3 . . . . . . . . . . . . . . . . . . 75
Control Board Testing . . . . . . . . . . . . . . . 76
Control Board Test Cycle . . . . . . . . . . 76
Troubleshooting By Symptom . . . . . . . . 77
Symptom #1 Ice Machine will not run . 78
Diagnosing an Ice Machine that Will Not Run
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Compressor Electrical Diagnostics . . . 81
Symptom #2 Low Production, Long Freeze
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Symptom #2 - Freeze Cycle Refrigeration
System Operational Analysis Tables . 85
Freeze Cycle Refrigeration System Opera-
tional Analysis Table Procedures . . . . 94
Harvest Problems . . . . . . . . . . . . . . . . . . 115
Symptom #3 Ice Will Not Harvest, Cubes
Are Not Melted . . . . . . . . . . . . . . . . . . 116
Symptom #3 - Traditional Remotes Only
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Symptom #4 Will Not Harvest, Melted
Cubes . . . . . . . . . . . . . . . . . . . . . . . . . 120