Lincoln Electric 225 Symptoms, Output Problems, Reconnect Procedure, Contact your local Lincoln

E-2		TROUBLESHOOTING			E-2
	Observe all Safety Guidelines detailed throughout this manual
	PROBLEMS	POSSIBLE			RECOMMENDED
	(SYMPTOMS)	CAUSE		COURSE OF ACTION
		OUTPUT PROBLEMS
Machine is Dead -No Output - No		1. Make certain that the input power
Fan		switch is in the “ON” position and
		machine is plugged in.
		2. Check the input voltage at the
		machine. Input voltage must
		match the rating plate and volt-
		age connection. Refer	to
		Reconnect Procedure in the
		Installation section of this manual.
		3. Blown or missing fuses in input
		line.		If all recommended possible areas
				of misadjustment have been
Fan runs normally at power up - No		1. Check for proper input voltages
				checked and the problem persists,
output from machine in either Stick		per nameplate and voltage recon-		Contact your local Lincoln
or TIG modes.		nection.		Authorized Field Service Facility.
		2. Check to make sure polarity
		switch is not in between two posi-
		tions.
Fan runs at power up - No output		1. Welding application may have
from machine in either Stick or TIG		exceed the recommended duty
modes and the yellow light on the		cycle. Allow the unit to run until
control panel is on.		the fan cools the unit and the yel-
		low light goes out.
		2. The air vents may be blocked.
		Remove air obstruction and
		allow unit to cool
Machine does not respond (no gas		1. Machine MUST be in the TIG
flow, no high frequency and no open		Mode.
circuit voltage) when arc start switch		2. The Amptrol may be defective.
or Amptrol is activated - fan is work-		Check for continuity between
ing.		pins “D” and “E” on cable con-
		nector when Amptrol	is
		depressed.
Machine regularly over heats - the-		1. Welding application may exceed
mostat opens, Yellow light on front		recommended duty cycle. Reduce
panel glows. The fan runs but		the duty cycle.
machine has no output.		2. Dirt and dust may have clogged
		the cooling channels inside the
		machine. Blow out unit with clean,
		dry low pressure air.
		3. Air vents and exhaust louvers may
		be blocked due to inadequate
		clearance around machine.
		CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.