Miller Electric 15A, 30A manual Replacing Diffuser, Troubleshooting

6-7. Replacing Diffuser

Turn Off welding power source. 1 Nozzle

2 FasTip

To remove, see Section 6-2.

3 Diffuser

Remove diffuser and replace.

3

2

1

	Tools Needed:
	3/8 in
	Ref. 803 348-G
6-8. Troubleshooting
Trouble	Remedy
No weld output; gun/feeder does not	Secure weld control plug in 115 volts ac receptacle (see weld control Owner’s Manual).
work.
	Place Power switch on welding power source in the On position (see welding power source Owner’s
	Manual).
Erratic weld output.	Tighten and clean all connections.
Pressing gun/feeder trigger does not en-	Secure plug from gun/feeder trigger cord into 10-socket receptacle on weld control (see Sections 4-5and
ergize weld control; welding wire is not	4-6).
energized; shielding gas does not flow.
Wire feeds, shielding gas flows, but	Secure control cable leads in weld control (see weld control Owner’s Manual).
welding wire is not energized.
	See Troubleshooting section in welding power source Owner’s Manual.
Wire feeds erratically.	Check and correct drive roll pressure (see Section 4-8).
	Clean drive roll or replace drive roll (see Section 6-4).
	Decrease spool brake pressure (see Section 4-8).

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