Probable Cause
Fittings are not tight enough.
Probable Cause
Defective or rusted air tank.
Probable Cause
Damaged inlet (reed) valve.
Symptom 9. Insufficient pressure at air tool or accessory.
Probable Cause
Pressure regulator knob not turned to high
enough pressure or defective pressure regulator.
Restricted air intake filter.
Air leaks.
Air compressor is not large enough for air
requirement.
Symptom 10. Air compressor not making enough air.
Probable Cause
Restricted air intake filter.
Defective (reed) valve.
Probable Cause
Condensation in air tank caused by high level of
atmospheric humidity or air compressor is not run
long enough.
Troubleshooting
Symptom 6. Air leaks at fittings.
Tighten fittings where air can be heard escaping.
Check fittings with soapy water solution.
Do not overtighten.
Symptom 7. Air leak in air tank.
Air tank must be replaced.
Do not attempt to repair air tank!
Do not weld, repair or make modifications.
Symptom 8. Air blowing from inlet filter.
Contact SENCO Customer Service.
Adjust pressure regulator knob to proper setting
or replace.
Clean.
Check for leaks and repair.
Check the accessory air requirement. If it is
higher than the CFM or pressure supply of the air
compressor, you need a larger air compressor.
Clean.
Drain air tank and measure pump up time.
Compare to specifications. If lower, remove pump
head and inspect valve plate, clean or replace.
Symptom 11. Moisture in discharge air.
Drain air tank after every use. Drain air tank more
often in humid weather and use an air line filter.
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Remedy
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Remedy