Miller Electric M-10 Gun, Millermatic DVI manual Troubleshooting, Welding Trouble Remedy

6-10. Troubleshooting

	Welding Trouble		Remedy
No weld output; wire does not feed.		Secure power cord plug in receptacle (see Section 4-14).
		Check power switch/supplementary protector, and reset if necessary. If supplementary protector is not
		tripped, replace power switch.
		Check supplementary protector CB1, and reset if necessary (see Section 6-2).
		Replace building line fuse or reset circuit breaker if open (see Section 4-14).
		Secure gun plug in receptacle or repair leads, or replace trigger switch (see Section 4-7and/or 6-9).
		Thermostat TP1 or TP2 open (overheating). Allow fan to run; the thermostat will close when the unit has
		cooled (see Section 6-3).
No weld output; wire feeds.		Connect work clamp to get good metal to metal contact.
		Replace contact tip (see Section 6-4).
Low weld output.		Connect unit to proper input voltage or check for low line voltage (see Section 4-14).
Low, high, or erratic wire speed.		Readjust front panel settings (see Section 5-1).
		Change to correct size drive roll (see Section 6-5).
		Readjust drive roll pressure (see Section 4-15).
		Replace inlet guide, contact tip, and/or liner if necessary (see Sections 6-4, and 6-8).

Wire Drive/Gun Trouble	Remedy
Electrode wire feeding stops during	Straighten gun cable and/or replace damaged parts (see Section 6-8).
welding.
	Adjust drive roll pressure (see Section 4-15).
	Readjust hub tension (see Section 4-10).
	Replace contact tip if blocked (see Section 6-4).
	Clean or replace wire inlet guide or liner if dirty or plugged (see Section 6-8).
	Replace drive roll if worn or slipping (see Section 6-5).
	Secure gun plug in receptacle or repair leads, or replace trigger switch (see Section 4-7and/or 6-9).
	Check and clear any restrictions at drive assembly and liner (see Section 6-8).
	Have nearest Factory Authorized Service Agent check drive motor.

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