TROUBLESHOOTING
SYMPTOM
11.Insufficient pressure at air tool or accessory.
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PROBABLE CAUSE | REMEDY |
Pressure regulator knob not turned to high enough | Adjust pressure regulator knob to proper setting or |
pressure or defective pressure regulator. | replace. |
Restricted air intake filter. | Clean or replace. |
Air leaks. | Check for leaks and repair. |
Hose or hose connections are too small or long. | Replace with larger hose or connectors. |
Slipping belt. | Tighten or replace. |
Air compressor is not large enough for air require- | Check the accessory air requirement. If it is higher |
ment. | than the CFM or pressure supply of the air |
| compressor, you need a larger air compressor. |
SYMPTOM
12.Air compressor not making enough air.
PROBABLE CAUSE | REMEDY |
Restricted air intake filter. | Clean or replace. |
Defective (reed) valve. | Drain air tank and measure pump up time. Compare |
to specifications. If longer, remove pump head and | |
| inspect valve plate, clean or replace. |
Restriction in pilot valve. | Clean or replace. |
SYMPTOM
13.Excessive oil consumption in pump.
PROBABLE CAUSE | REMEDY |
Restricted air intake filter. | Clean or replace. |
Air compressor on unlevel surface. | Do not incline the air compressor more than 10° in |
| any direction while running. |
Crankcase overfilled with oil. | Drain oil. Refill to proper level with Senco PC0344 |
| oil. |
Plugged oil dipstick vent. | Clean. |
Oil leaks. | Repair. |
Worn piston rings or scored cylinder. | Contact Senco Customer Service |
SYMPTOM
14. Oil has milky appearance.
PROBABLE CAUSE | REMEDY |
Water in oil due to condensation. | Change oil and move air compressor to a less humid |
| environment. |
SYMPTOM
15. Moisture in discharge air.
PROBABLE CAUSE | REMEDY |
Condensation in air tank caused by high level of at- | Drain air tank after every use. Drain air tank more |
mospheric humidity or air compressor is not run long | often in humid weather and use an air line filter. |
enough. |
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14 | Senco® Electric Air Compressor Manual 2004 |