Vanair Air N Arc All-in-One Power Systems 300 Operations Manual & Parts List page 121

®
AIR IN ARC 300 SERIES ALL-IN-ONE POWER SYSTEM
7.2 TROUBLESHOOTING GUIDE
Fault/Malfunction
Compressor overheats
This will cause a compressor
shutdown and compressor fault
light to turn on. Before
restarting the compressor,
determine the cause for
overheating (continued)
Compressor shuts down with air
demand present
®
Possible Cause
COMPRESSOR (CONTINUED)
Defective switch
Obstructed fluid cooler
Obstructed cooler fins
Insufficient air flow over cooler
Compressor oil filter plugged
Input rpm too high
Fan not operating
Compressor temperature switch
Restricted cooling air intake
Fan not operating
090010-OP_r0
SECTION 7: TROUBLESHOOTING
Corrective Action
Replace switch.
Clear debris/dirt from cooler core/flush
shroud.
Clear/clean if required. Refer to Section
6.5.12.
Check for obstructions (frame, body, etc.) to
cooling air flow.
Replace filter; refer to Section 6.5.4,
Replacing the Compressor Oil Filter
Element.
Adjust to proper setting; refer to Section
6.5.14, Adjusting the Engine Speed, and
the Engine Operator's Manual.
Check fan fuse for continuity, and replace if
necessary. See Section 6.6, Servicing the
System Fuses and Circuit Breakers.
Check fan switch for continuity. Replace if
necessary.
Check fan motor.
Check fan relay for continuity. Replace if
necessary.
Check all electrical connections and lines;
clean/renew connections where needed.
Check for loose wire; verify wire
connections.
Faulty temperature switch. Replace switch.
Reposition machine.
Check fan fuse for continuity, and replace if
necessary. See Section 6.6, Servicing the
System Fuses and Circuit Breakers.
Check fan switch for continuity. Replace if
necessary.
Check fan motor.
Check fan relay for continuity. Replace if
necessary.
Continued on next page
PAGE - 103