Lincoln Electric S350 manual Input Control Board

E-4		TROUBLESHOOTING		E-4
		Observe all Safety Guidelines detailed throughout this manual
		INPUT CONTROL BOARD
		Error Code #	Indication
	331	Peak input current limit	Input current limit has been exceeded. Typically indicates short
			term power overload. If problem persists contact Service
			Department.
	333	Under-voltage lockout	+15 VDC supply on Input control board too low. Verify input voltage
			is within the acceptable range. If problem persists contact service
			department.
	336	Thermal Fault	Thermostat on primary module tripped. Typically caused by bottom
			fan not working.
	337	Pre-charge timeout	Problem with start-up sequence. If problem persists contact Service
			Department.
	346	Transformer primary over current	Transformer current too high. Typically indicates short term power
			overload. If problem persists contact service department.
	Other		Contact the Service Department.

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.

POWER WAVE® S350