CLarke 130 en everything works Great except when I select # 4 on the heat then it won't feed when the trigger is pulled?

More then likely you have a shorted component (positive or hot wire to ground). Verify that the gun/trigger assembly is in good shape and has no broken wires that are touching the ground or case (may have to disassemble). Thats the easiest thing to check, everything else is inside the unit and will take more sophisticated knowledge and equipment to diagnose.

Hi:
Just make sure that if you are using an extension cable between your machine and the power outlet, this cable is at least a 12 gauge size, if you are using a 14 or 16 it's too small to handle the amps.
Other point is to check that your breaker is 20 or 30 Amp capacity.
Hope this help.

I have a clarke 85en no gas welder. the gun on this particular welder is always live the trigger only feeds the wire

does everything else work? power light come on? fan? does the trigger click? seems like you've tested everything i would have tested. maybe the motor itself. its also possible that theres an open in the wiring to the trigger. i would take the trigger back apart and do a continuity test from the beginning of the wire to the connection in the trigger. check continuity on both trigger wires. the best way to to do that is using a volt meter on either the continuity setting or resistance setting zero resistance or infanite (depending on meter) will mean there is an opening and you will either have to fix it or replace it. if you dont have a volt meter you may also try arcing across the two trigger wires closer to the welder connection.see i had this problem before but it was a faulty trigger so im thinkin if it isnt the trigger (you said you tested it) then its the trigger wiring.

Check that your ground clamp is connected to the work piece securely.

Your local welding supplier would be you first choice. you will be able to fit an alternative power cable, dosn't have to be Carke,

is it feeding wire? check your ground even pull off the side covers and make sure everything is tight.

weldingdepot.com

replace coil liner

The only things I can think of are:

• The tension on the coil of welding wire is too tight and needs slackening off.
  
• The feed rollers need cleaning and the tension adjusting.

If none of these solutions solve your problem then I can not help you any further.