Part Number 000014797 Rev02 05/18 107
Safety Limit Checklist
The following checklists are designed to assist the service
technician in analysis. However, because there are many
possible external problems, do not limit your diagnosis to
only the items listed.
cycles.
Possible Cause Checklist
Improper installation
• Refer to “Installation/Visual Inspection Checklist” on
page 100
Water System
• Water Level too high or defective float switch (water
escaping water trough)
• Low water pressure (20 psig min.)
• High water pressure (80 psig max.)
• High water temperature (90°F/32.2°C max.)
• Clogged water distribution tube
• Dirty/defective water inlet valve
• Defective water pump
Electrical System
• Harvest cycle not initiated electrically
• Contactor not energizing
• Compressor electrically non-operational
• Restricted condenser air flow
• High inlet air temperature (110°F/43.3°C max.)
• Condenser discharge air re-circulation
• Dirty condenser fins
• Defective fan cycling control
• Defective fan motor
• Low water pressure (20 psig min.)
• High water temperature (90°F/32.2°C max.)
• Dirty condenser
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