Does the cooling fan in my 225 Lincoln welder usually run continually..?

SOURCE: cooling fan/ lincoln 225 arc welder

the fan should be pulling air from the front of unit and out the back.

SOURCE: ARC 225 - Can't hear fan.

sounds like you lost one leg of power to the unit,check power source and the the plug on the welder.

SOURCE: Need wiring diagram For Lincoln Welder

try the company web site

SOURCE: Where do I find a replacement cooling fan for a

I took my old one to Grainger and they ordered a new one that is 230V. Total cost of motor and fan $27.00

SOURCE: how do you wire the old lincoln 225 ac welder

What are you wiring? Power Cord? Fan? Transformer? You should see a white wiring block in the lower right corner if you are looking from the back. On the two top post the black and white wires are attached. The green ground wire is attached to the case. On the two bottom poles the fan lines attach one on each side and the transformer wires that are coming up from the transformer are attached on the same poles as the fan wires.