Part Number 80-1505-3 6/11 7
Troubleshooting
Safety Limits . . . . . . . . . . . . . . . . . . . . . . .123
Safety Limit Analysis . . . . . . . . . . . . . .125
Safety Limit#1 . . . . . . . . . . . . . . . . . . . 126
Safety Limit #2 . . . . . . . . . . . . . . . . . . 127
Safety Limit #3 . . . . . . . . . . . . . . . . . . 128
Control Board Testing . . . . . . . . . . . . . . .129
Control Board Test Cycle . . . . . . . . . .129
Troubleshooting By Symptom . . . . . . . .130
Symptom #1 Ice Machine Will Not Run . 131
Diagnosing an Ice Machine Head Section
that Will Not Run . . . . . . . . . . . . . . . . . 133
Diagnosing a Condensing Unit
That Will Not Run . . . . . . . . . . . . . . . .134
Compressor Electrical Diagnostics . . . 135
Symptom #2 Low Production, Long Freeze
Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Symptom #2 - Refrigeration System Opera-
tional Analysis Tables . . . . . . . . . . . . . 140
Symptom #2 - Freeze Cycle Refrigeration
System Operational Analysis Table Proce-
dures . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Symptom #3 Ice Will Not Harvest . . . . . . 166
Ice Machine will Not Harvest Diagnostics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Harvest Problems . . . . . . . . . . . . . . . . 167
Symptom #3 Ice Will Not Harvest, Cubes Are
Not Melted Flowchart . . . . . . . . . . . . . . . . 168
Symptom #4 Ice Will not Harvest - Cubes Are
Melted Flowchart . . . . . . . . . . . . . . . . . . .172
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