ALTEC AIR, LLC
P1500W Series Air Dryers User’s Guide
Page 91 of 100
P011787 – Rev. S
13.15 Compressor Won’t Build Pressure
Possible Cause
Check
Corrective Action
Low System Pressure
Verify System Pressure
Adjust System
Pressure.
Defective Unloader
Valve
Test Unloader Valve
operation (section 9.7 )
If this is continuously
flowing high amounts
of air, the Unloader
Valve is defective.
Replace Unloader
Valve
(section 11.2 )
Leak in air system
Check all hoses and
fittings between
Compressor and Air
Tank for air leaks
(section 9.16 )
Connect, tighten, or
replace leaking
component
13.16 Compressor Excessive AMP Draw
Possible Cause
Check
Corrective Action
Restriction in air line
Remove Discharge
Hose from Compressor
(hose to the heatless
dryer)
Re-measure
Compressor AMP
Draw
(section 9.2 )
If measurement is
below the
recommended amps,
trace hoses from
Compressor to
Unloader Valve looking
for restrictions or kinks
Compressor failing
Remove Discharge
Hose from Compressor
(hose to the heatless
dryer)
Re-measure
Compressor AMP
Draw
(section 9.2 )
If measurement is still
above the
recommended amps,
replace the Compressor
(section 11.2 )
or send it in for repair
(section 12. )
Summary of Contents for P1500W Series
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