28
5.0 TROUBLE SHOOTING
TROUBLE CHECK POINT NUMBERS
Compressor Fails to Start 1,2,3
Repeat Shutdowns 3,4,5,2
High Amp Draw 8,9,6,7
Low Amp Draw 1,10,12
High Discharge Pressure 13,15,16,19
Low Air System Pressure 22, 20,17,18,13,15,14,19,7
Unit Running Hot 22,21,23,24,6
High Coolant Consumption 28,27,25,26
Excessive Noise Level 17,18,31,30,29
Shaft Seal Leak 32
Pressure Relief Valve Opens 6,13,15,14,16,19
Black Residue on Belt 17,33,34
Guard/Cooler Box
CHECK POINT NUMBERS TROUBLE CAUSE
1. Control Voltage Not Available
2. Defective Starter
3. Motor Overload
4. Incorrect Overload Size
5. Line Voltage Variation
6. Compressor Operating Above Rated Pressure
7. Dirty Separator Element
8. Low Voltage
9. Unbalanced Voltage
10. Dirty Air Filter
11. Compressor Operating Unloaded
12. High Voltage
13. Incorrect Pressure Switch Setting
14. Faulty Minimum Pressure Valve
15. Load Solenoid Valve Defective
16. Blowdown Valve Defective
17. Drive Belts Slipping
18. Air System Leaks
19. Inlet Valve Malfunction
20. System Demand Exceeds Compressor Delivery
21. Coolant Cooler Core Dirty
22. Low Coolant Level
23. High Ambient Temperature
24. Restricted Cooling Air Flow
25. Separator Element Leak
26. Plugged Separator Scavenge/Orifice
27. Compressor Operating Below Rated Pressure
28. Coolant System Leak
29. Airend Defective
30. Motor Defective
31 Loose Components
32 Worn or Defective Shaft Seal
33 Sheaves Misaligned
34 Worn Sheaves
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