10 Part Number STH063 9/17
Maintenance
Interior Cleaning and Sanitizing ................. 35
General................................35
Cleaning and Sanitizing Procedure .........35
Toggle Switch Operation..................36
Remove Parts for Cleaning ................40
Preventative Maintenance Cleaning ............ 42
Ice Machine Inspection ......................... 43
Cleaning the Condenser ........................ 44
Removal from Service/Winterization............ 45
Air-cooled Models .......................45
Water-cooled Models ....................45
Troubleshooting
Control Board Test Mode ....................... 47
Diagnosing an Ice Machine that Will Not Run ... 48
Ice Machine Does Not Cycle Into Harvest when
Water Loses Contact with the Harvest Float Switch
................................................ 49
Ice Machine Cycles Into Harvest Before Water Loses
Contact with the Harvest Float Switch .......... 51
Ice Production Check ........................... 52
Installation/Visual Inspection Checklist ......... 53
Water System Checklist......................... 54
Ice Formation Pattern .......................... 55
Safety Limits............................58
Analyzing Discharge Pressure .................. 65
Analyzing Suction Pressure ..................... 67
Harvest Valve .................................. 71
Comparing Evaporator Inlet/Outlet Temperatures ..
................................................ 75
Discharge Line Temperature Analysis............ 76
Refrigeration Component Diagnostics........... 78
Procedure..............................79
Final Analysis ...........................80
Refrigeration Component Diagnostic Chart...... 81
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