Part Number STH044 10/13 3
Component Check Procedures
Main Fuse . . . . . . . . . . . . . . . . . . . . . .73
ICE/OFF/CLEAN Toggle Switch . . . . . 74
Float Switch . . . . . . . . . . . . . . . . . . . . .75
Ice Damper and Hall Effect Switches . 76
Selector Switch . . . . . . . . . . . . . . . . . . 79
Dispense Lever Activated . . . . . . . . . .79
Touchless Sensor Activated . . . . . . . . 80
Dispense Switch . . . . . . . . . . . . . . . . . 82
Touchless Sensor . . . . . . . . . . . . . . . .83
High Pressure Cutout Control . . . . . . . 84
Fan Cycle Control . . . . . . . . . . . . . . . . 85
Low Pressure Cutout (LPCO) Control . 86
Compressor Electrical Diagnostics . . . 87
Diagnosing Start Components . . . . . . 89
Refrigerant Recovery/Evacuation . . . . . . 91
Normal Self-Contained Procedures . . . 91
System Contamination Clean-Up . . . . . . 95
Determining Severity Of Contamination 95
Cleanup Procedure . . . . . . . . . . . . . . . 97
Replacing Pressure Controls Without Re-
moving Refrigerant Charge . . . . . . . . . 100
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