SECTION 6: TROUBLESHOOTING
AIR N ARC
®
150 SERIES
PAGE - 46
090051-OP_r0 (FEB-2014)
Vanair Manufacturing, Inc.
vanair.com • 800-526-8817
COMPRESSOR (CONTINUED)
Compressor will not build up
pressure (continued)
Input rpm too low
Adjust to proper setting.
Service valve is open
Close service valve.
Pressure gauge is malfunctioning
Check pressure gauge function/control line
routing: adjust, repair or replace as
necessary.
Check for proper operation with an auxiliary
air source. Replace if necessary.
Discharge piping leaks
Tighten connections; replace faulty piping.
Compressor incorrectly sized
Match task requirements within the
compressor specification range.
Head gasket leaking
Replace head gasket.
Dirty or plugged inter-cooler tubes
Remove and clean inter-cooler tubes.
Worn or defective compressor valves
Replace worn parts.
Worn piston, worn out rings
Replace worn parts.
Excessive moisture in the
compressed air
Moisture accumulating in air tank
Drain water from air tank. Refer to
Section
5.3, Maintenance Schedule Table,
and
Section 7.11, Installation and Dimension
Diagram
.
Excessive compressor heat
Allow compressor to cool down.
Compressor system over-
pressures
Damaged/kinked control line
Check line for damage (wear, kinks, etc.).
Re-route, re-tie or replace if necessary.
Restriction in control line
Clean if soiled; if ice is present, clear and
remove.
Control line connections are not prop-
erly seated/poor connection quality
Check lines for proper seating/ensure line
ends have been cut cleanly and are square
(
DO NOT
use wire cutters: use a loom cut-
ting tool or a clean, sharp razor blade).
Pilot valve out of adjustment or
malfunctioning
Pressure settings may need to be reset.
Continued on next page
6.2 TROUBLESHOOTING GUIDE
Fault/Malfunction
Possible Cause
Corrective Action
