Operating & Maintenance Manual Troubleshooting
7 Book: 46551819 (2-11-2011) Rev B
Table 3: Unit Fails to Shutdown:
Table 4: High Compressor Oil Temperature:
Complaint Corrective Action
Defective Discharge Air Temperature Switch Replace switch
Defective Sep. Temp Switch Replace switch
Defective Engine Temp Switch Replace switch
Defective Engine Oil Pressure Switch Replace switch
Defective Shutdown Solenoid Carefully block air inlet to stop engine
Malfunctioning Relay Replace relay
Defective Start Switch Pull wire off shutdown solenoid. Replace defective item
Wire Shorted Hot Repair short
Complaint Corrective Action
Dirty Cooler Clean exterior surfaces.
Low Oil Level Add oil. Look for any leaks.
Clogged Oil Filter Elements Replace elements. Change oil.
Operating Pressure Too High Reduce pressure to spec.
Dirty Operating Conditions Move unit to cleaner environment.
Ambient Temp. > 120°F (49°C) Above spec limit.
Out of Level > 15 degrees Relocate or reposition unit.
Wrong Lube Oil Check spec in this manual.
Recirculation Of Cooling Air Close canopy. Replace belly pan.
Malfunctioning Thermostat Replace thermostat in bypass valve.
Loose or Broken Belts Tighten or replace belt set.
Malfunctioning Fan Check fan belt tension. Tighten or replace belt set.
Blocked or Restricted Oil Lines Clean by flushing or replace.
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