Hobart Welding Products 125 Gas cylinder empty Replace empty gas cylinder, Welding power source

Problem	Probable Cause	Remedy
Wire feeds, but no gas flows	Gas cylinder empty.	Replace empty gas cylinder.
(GMAW).
	Gas nozzle plugged.	Clean or replace gas nozzle.
	Gas cylinder valve not open or flowmeter not adjusted.	Open gas valve at cylinder and adjust flow rate.
	Restriction in gas line.	Check gas hose between flowmeter and wire feeder, and
		gas hose in gun and cable assembly.
	Loose or broken wires to gas solenoid.	Have Factory Authorized Service Agent repair wiring.
	Gas solenoid valve not operating.	Have Factory Authorized Service Agent replace gas
		solenoid valve.
	Incorrect primary voltage connected to welding power	Check primary voltage and relink welding power source
	source.	for correct voltage.
Welding arc not stable.	Wire slipping in drive rolls.	Adjust pressure setting on wire feed rolls. Replace worn
		drive rolls if necessary.
	Wrong size gun liner or contact tip.	Match liner and contact tip to wire size and type.
	Incorrect voltage setting for selected wire feed speed on	Readjust welding parameters.
	welding power source.
	Loose connections at the gun weld cable or work cable.	Check and tighten all connections.
	Gun in poor shape or loose connection inside gun.	Repair or replace gun as necessary.

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