Part Number STH042 3/14 11
COMPONENT CHECK PROCEDURES
Main Fuse . . . . . . . . . . . . . . . . . . . . . . . . . 95
Bin Switch . . . . . . . . . . . . . . . . . . . . . . . . . 96
Touch Pad . . . . . . . . . . . . . . . . . . . . . . . . . 98
Float Switch . . . . . . . . . . . . . . . . . . . . . . . 100
Compressor Electrical Diagnostics . . . . 102
Fan Cycle Control . . . . . . . . . . . . . . . . . . . 104
High Pressure Cutout (HPCO) Control . . 105
Filter-Driers . . . . . . . . . . . . . . . . . . . . . . . . 106
Refrigerant Recovery/Evacuation . . . . . . 108
Definitions . . . . . . . . . . . . . . . . . . . . . . 108
Refrigerant Re-use Policy . . . . . . . . . . 109
Recovery and Recharging Procedures 111
System Contamination Cleanup . . . . . . . 114
Determining Severity of Contamination 114
Mild System Contamination Cleanup
Procedure . . . . . . . . . . . . . . . . . . . . . . 116
Severe System Contamination Cleanup
Procedure . . . . . . . . . . . . . . . . . . . . . . 117
Replacing Pressure Controls without
Removing Refrigerant Charge . . . . . . . 118
Total System Refrigerant Charge . . . . . . 120
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