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PROBLEM
Lights flicker or dim when
running
Moisture in crankcase or "milky"
appearance in petroleum
lubricant or rusting in cylinders
Motor overload trips or draws
excessive current
Motor will not start
Oil in discharge air (oil pumping) 1. Lubricant viscosity too low.
Oil leaking from shaft seal
Safety/relief valve "pops"
http://air.irco.com
POSSIBLE CAUSE
1. Improper line voltage.
2. Wiring or electric service panel too small.
3. Poor contact on motor terminals or starter connections.
4. Improper starter overload heaters.
5. Poor power regulation (unbalanced line).
1. Detergent type lubricant being used.
2. Extremely light duty cycles.
3. Unit located in damp or humid location.
1. Lubricant viscosity too high.
2. Improper line voltage.
3. Wiring or electric service panel too small.
4. Poor contact on motor terminals or starter connections.
5. Improper starter overload heaters.
6. Poor power regulation (unbalanced line).
7. Drive belts too tight or misaligned.
8. Compressor valves leaky, broken, carbonized or loose.
9. Cylinder(s) or piston(s) scratched, worn or scored.
10.Connecting rod, piston pin or crankpin bearings worn or
scored.
11. Defective ball bearings on crankshaft or motor shaft.
12.Leaking check valve or check valve seat blown out.
13.Ambient temperature too low.
14.Bad motor.
1. Improper line voltage.
2. Wiring or electric service panel too small.
3. Poor contact on motor terminals or starter connections.
4. Improper starter overload heaters.
5. Bad motor.
2. Detergent type lubricant being used.
3. Piston rings damaged or worn (broken, rough or
scratched). Excessive end gap or side clearance.
4. Piston rings not seated, are stuck in grooves or end gaps
not staggered.
5. Cylinder(s) or piston(s) scratched, worn or scored.
6. Worn cylinder finish.
7. Excessive condensate in receiver tank.
1. Crankshaft seal worn or crankshaft scored.
1. Clogged or dirty inlet and/or discharge line filter.
2. Compressor valves leaky, broken, carbonized or loose.
3. Defective safety/relief valve.
7
POSSIBLE SOLUTION
1. Check line voltage and upgrade lines as required.
Contact electrician.
2. Install properly sized wire or service box. Contact
electrician.
3. Ensure good contact on motor terminals or starter
connections.
4. Install proper starter overload heaters. Contact
electrician.
5. Contact power company.
1. Drain existing lubricant and refill with proper lubricant.
2. Run unit for longer duty cycles.
3. Relocate unit.
1. Drain existing lubricant and refill with proper lubricant.
2. Check line voltage and upgrade lines as required.
Contact electrician.
3. Install properly sized wire or service box. Contact
electrician.
4. Ensure good contact on motor terminals or starter
connections.
5. Install proper starter overload heaters. Contact
electrician.
6. Contact power company.
7. Adjust belts to proper tension and alignment.
8. Inspect valves. Clean or replace as required.
Install valve kit.
9. Repair or replace as required.
10.Inspect all. Repair or replace as required.
11. Inspect bearings and replace crankshaft assembly if
required.
12.Replace check valve.
13.Relocate unit to warmer environment.
Install crankcase heater kit.
Convert to synthetic lubricant.
14.Replace
1. Check line voltage and upgrade lines as required.
Contact electrician.
2. Install properly sized wire or service box. Contact
electrician.
3. Ensure good contact on motor terminals or starter
connections.
4. Install proper starter overload heaters. Contact
electrician.
5. Replace
1. Drain existing lubricant and refill with proper lubricant.
2. Drain existing lubricant and refill with proper lubricant.
3. Install ring kit.
4. Adjust piston rings.
5. Repair or replace as required.
6. Deglaze cylinder with 180 grit flex-hone.
7. Drain receiver tank with manual drain valve.
1. Replace seal or crankshaft assembly.
1. Clean or replace.
2. Inspect valves. Clean or replace as required.
Install valve kit.
3. Replace
P1.5IU-A9
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