AIR IN ARC
®
300 SERIES ALL-IN-ONE POWER SYSTEM
®
SECTION 7: TROUBLESHOOTING
090010-OP_r0
PAGE - 109
COMPRESSOR (CONTINUED)
Compressor system fails to build-
up pressure (continued)
Inlet valve fails to open
Repair/replace inlet valve. Refer to
Section
6.5.2, Repairing the Air Inlet Valve
.
Order
inlet valve repair kit—see
Table 9A:
Recommended Spare Parts List
.
Inlet valve frozen
Repair/replace inlet valve. Refer to
Section
6.5.2, Repairing the Air Inlet Valve
.
Order
inlet valve repair kit—see
Table 9A:
Recommended Spare Parts List
.
Compressor relief valve opening
Safety switches not operating (these
should shut down the compressor
before the relief valve opens)
Check pressure safety switch/control box.
Replace if necessary.
WELDER
Welder and/or battery charger
behave erratically
Connection cables or receptacles are
soiled/contaminated
Check for twisted cables and/or soiled/
contaminated or loose receptacle
connections.
Untwist and/or straighten out any suspected
cable tensions. Carefully wipe off any
contaminants to receptacle connectors
before re-connecting. Replace any worn or
damaged cables or receptacles. Contact
Vanair
®
Mfg., Inc. Service Department if
behavior persists.
Welding function is not drawing enough
operating power
If running more than one function
simultaneously, turn off competing function.
No welder output
Fuse at welder field blown
Replace the welder field fuse. Refer to
Section 6.6,
Servicing the System Fuses
and Circuit Breakers
Display not working
Loose or faulty wiring
Check wiring: Loose—secure ;
faulty—replace.
Lights do not turn off
Battery charge low
Flip AC generator switch to bring engine to
high rpm, and charge battery.
AC GENERATOR
No AC generator output
Serpentine belt out of position or
malfunctioning
Re-situate and adjust belt tension, or
replace belt if necessary. Consult
Section
6.5.16, Replacing and Re-tensioning the
Serpentine Belts
. Order replacement
belt—see
Table 9A: Recommended Spare
Parts List
.
Continued on next page
7.2 TROUBLESHOOTING GUIDE
Fault/Malfunction
Possible Cause
Corrective Action
