AIR N ARC
®
150 SERIES
SECTION 6: TROUBLESHOOTING
090051-OP_r0 (FEB-2014)
PAGE - 45
Vanair Manufacturing, Inc.
vanair.com • 800-526-8817
COMPRESSOR (CONTINUED)
Compressor shuts down with air
demand present (continued)
Pressure control out of adjustment or
malfunctioning
Pressure settings may need to be reset.
Compressor will not build up
pressure
Compressor system is not receiving
enough operating power
If running more than one function
simultaneously, turn off competing function
Air demand too high
Check for leaks and take corrective action.
Check air tools for wear, damage, or
malfunctions. Replace or repair.
Pilot valve out of adjustment or
malfunctioning
Pressure settings may need to be reset.
Obstructed or restricted intake air flow
Check for obstructions (frame, body, etc.) to
air filter vents. Replace air filter if necessary.
Belt(s) slipping or broken
Re-situate and adjust belt tension, or
replace belt if necessary. Consult
Section
5.5.2, Replacing and Re-tensioning the
Compressor and/or Generator Drive
Belts
.
Engine governor stuck
Free governor and lubricate if necessary.
Consult the Engine Owner’s Manual.
Unloader valve(s) sticking or faulty
Clean or rebuild/replace.
Pressure relief valve not operating
properly
Replace if necessary.
Leak in air system
Inspect air system for leaks.
Faulty throttle solenoid
Check throttle solenoid; replace if
necessary.
Check throttle relay; replace if necessary.
Drain cock open
Close drain cock.
Loose tubes or fittings
Tighten fittings.
Continued on next page
6.2 TROUBLESHOOTING GUIDE
Fault/Malfunction
Possible Cause
Corrective Action
