OM-1500-16 Page 26
Trouble
Remedy
Wire feeds as soon as power is applied.
Check gun trigger. See gun Owner’s Manual.
Wire does not feed until trigger is
pressed but continues to feed after trig-
ger is released.
Check for short between gun trigger leads and weld cable. Repair or replace gun trigger leads.
Gas valve rattles loudly and wire feeds
slowly or erratically.
Check for short between gun trigger leads and weld cable. Repair or replace gun trigger leads.
Gas does not flow or does not stop flow-
ing; wire feeds.
Clear blockage in gas hose or replace hose.
Clear blockage in welding gun.
Clear blockage in filter (see Section 6-3).
Check gas valve.
Check coil voltage and connections of gas valve GS1. Check continuity of coil. Replace GS1 if necessary.
Have Factory Authorized Service Agent check Control board PC1.
When triggered; gas flows, wire feeds
but no contact closure at welding power
source.
Overheating of bus bar. Allow feeder to cool, reduce weld amperage or duty cycle.
Motor runs slowly.
Check and replace contact tip or liner if necessary.
Have Factory Authorized Service Agent check Control board PC1.
Hub tension set too high (see Section 4-13).
Notes
