User`s guide

PUREGAS, LLC P550W Series Air Dryers User’s Guide
Page 91 of 99 P011658 – Rev. M
13.15 Compressor Won’t Build Pressure
Possible Cause Check Corrective Action
Low System Pressure Verify System Pressure
(section 8.8 )
Adjust System Pressure
to 50 PSI, ± 2 PSI.
(section 8.8 )
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 11.3 )
Leak in air system Check all hoses and
fittings between
compressor and Air
Tank for air leaks
(section 9.15 )
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. )