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View Full Version : Lincoln SP155 trobleshooting no wire feed


WayneJ
04-02-2007, 07:31 PM
My trusty Lincoln Sp155 is laying down on me.
When I fired it up this evening I had no wire feed.
I checked the trigger contacts...no problem there.
I pulled the cover and poked around with the multimeter a bit....I have voltage going to the circuit board, and both the gas solenoid and the feed solenoid are clicking, but I have no voltage coming out of the board to the motor.
Can't find any burn spots or anything that looks out of the ordinary on the board.
Jumped the motor with a 12v power source and the motor runs fine.
Any ideas on where to go from here? How would I go about checking the wire speed switch?

Wicked_S10
04-02-2007, 08:11 PM
I think another guy in here with the same welder just had the same problem and had to replace the control board. Do a search for it.