Miller Electric Blue Star 145 manual Troubleshooting, Welding, Generator Power, Trouble Remedy

. Complete Parts List available at www.MillerWelds.com

SECTION 9 − TROUBLESHOOTING

9-1. Troubleshooting

A. Welding

Trouble	Remedy
No weld output or generator power out-	Be sure all equipment is disconnected from receptacles when starting unit.
put at ac receptacles.
	Have Factory Authorized Service Agent check brushes, slip rings, rotor, stator, integrated rectifier
	SR2, and Weld Output control R1.
No weld output; generator power out-	Check Weld Output control setting.
put okay at ac receptacles.
	Check weld connections.
	Have Factory Authorized Service Agent check Weld Output control R1, stator, integrated rectifier
	SR2, stabilizer DC-Z, main rectifier SR1, and reactor AC-Z
Low weld output.	Check Weld Output control setting.
	Check engine speed, and adjust if necessary (see Section 8-3or 8-4).
	Service engine air cleaner.
	Check weld cable size and length.
	Have Factory Authorized Service Agent check Weld Output control R1, stator, integrated rectifier
	SR2, stabilizer DC-Z, main rectifier SR1, and reactor AC-Z
High weld output.	Check Weld Output control setting.
	Check engine speed, and adjust if necessary (see Section 8-3or 8-4).
Erratic weld output.	Check Weld Output control setting.
	Tighten and clean connections to electrode and workpiece.
	Use dry, properly-stored electrodes for Stick welding.
	Remove excessive coils from weld cables.
	Clean and tighten connections both inside and outside welding generator.
	Check engine speed, and adjust if necessary (see Section 8-3or 8-4).
	Check throttle/governor linkage for smooth, non-binding operation.

B. Generator Power

Trouble	Remedy
No output at generator power ac re-	Be sure all equipment is disconnected from receptacles when starting unit.
ceptacles; no weld output.
	Have Factory Authorized Service Agent check brushes, slip rings, rotor, stator, integrated rectifier
	SR2, and Weld Output control R1.
No output at generator power ac re-	Reset and check supplementary protector (see Section 7-1).
ceptacles; weld output okay.
	Check receptacle wiring and connections.
	Have Factory Authorized Service Agent check stator windings and connections at terminal block 1T.
High output at generator power ac	Check engine speed, and adjust if necessary (see Section 8-3or 8-4).
receptacles.

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