Vanair AIR N ARC RELIANT 300 Series Operations Manual & Parts List page 132

SECTION 7: TROUBLESHOOTING
7.2 TROUBLESHOOTING GUIDE
Fault/Malfunction
No welder output in CC mode
No AC generator output
Low AC voltage
High AC voltage
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AIR IN ARC
Possible Cause
WELDER (CONTINUED)
Bad ground connect
Faulty electrical circuit
GENERATOR
Serpentine belt slipping or damaged
Faulty AC generator relay
Faulty capacitor
Engine speed too low for demand
Weak or faulty capacitor
Belt slipping
Engine speed too high for demand
090012-OP_r0
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300 SERIES ALL-IN-ONE POWER SYSTEM
Corrective Action
Make sure of connection. Clean welding
surface.
Check electrical circuit.
Re-situate and adjust belt tension, or
replace belt if necessary. Consult Section
6.6.15, Replacing and Re-tensioning the
Serpentine Belts. Order replacement
belt—see Table 9A: Recommended Spare
Parts List.
Check; replace if necessary.
Check; replace if necessary.
Adjust speed control. Consult Section
6.6.13, Adjusting the Engine Speed, and
the Engine Operator's Manual.
Check; replace if necessary.
Check tension or replace belt ifnecessary.
Consult Section 6.6.16, Replacing and Re-
tensioning the Serpentine Belts. Order
replacement belt—see Table 9A: Recom-
mended Spare Parts List.
Adjust speed control. Consult Section
6.6.13, Adjusting the Engine Speed, and
the Engine Operator's Manual.
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