Miller Electric Regency 250 manual Maintenance & Troubleshooting, Routine Maintenance, Months

SECTION 4 – MAINTENANCE & TROUBLESHOOTING

4-1.	Routine Maintenance
	Y Disconnect power before maintaining.
		3 Months
	Replace			Repair Or
				Replace
	Unreadable
				Cracked
	Labels
					Weld
					Cable
	Clean And				Replace
	Tighten
					Cracked
	Weld
					Parts
	Terminals	14-Pin Cord		Torch, Electrode Holder,
				Or Gun Cable
		6 Months
		Blow Out	During Heavy
		Or
			Service,
	OR	Vacuum
			Clean Monthly
		Inside
4-2.	Troubleshooting

	Trouble	Remedy
No weld output; unit completely inoperative; pilot light		Place Power switch in the On position (see Section 3-1).
not on.
		Place line disconnect switch in the On position (see Section 2-9).
		Check line fuse(s); replace if open or reset circuit breaker(s) (see Section 2-9).
		Check for proper input connections (see Section 2-9).
Erratic weld output.		Use proper size and type weld cable (see Section 2-6).
		Clean and tighten all weld connections (see Section 4-1).
		Check for proper input connections (see Section 2-9).
No open-circuit voltage; pilot light on; wire does not		Secure gun trigger connections or see gun Owner’s Manual.
feed.
		Secure plug in Remote 14 receptacle RC3 (see Section 2-7).
No open-circuit voltage; pilot light on; wire feeds.		Thermostat open (overheating). Allow unit to cool.
		Have Factory Authorized Service Agent check contactor W.
Open-circuit voltage normal; pilot light on; wire does		Check gun or wire feeder Owner’s Manual.
not feed.
No 115 volts ac output at Remote 14 receptacle RC3.		Reset circuit breaker CB1 (see Section 3-1).
No 24 volts ac output at Remote 14 receptacle RC3.		Reset circuit breaker CB2 (see Section 3-1).

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