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Wire from gun arks without trigger pull - Miller Welding Tools

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Some old miller has a contact box inside the machine, this box could be worn out and needs to be replace. New miller have PC boards now. also these ones need to be replace.

Posted on Jan 12, 2011

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Posted on Jan 02, 2017

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Phase three on cv or cc have current going to mig wire, wire is live without hitten gun trigger. mega arc is hooked up to a Hobart suitcase


May need to take gun apart and see if trigger is sticking or replace lead.

we use Miller at work. The feeder has a switch that makes the trigger turn off and on with quick pull of trigger so you don't have to hold it entire time.

check wiring to make sure it's wired right so your not bypassing the trigger switch.

hope it helps.

Nov 02, 2015 | Hobart Welding Tools

1 Answer

Need wiring diagram or schematic of the primary, secondary, and lighting windings or a weller soldering gun. even arough drawing of the windings that's close would work


You know that's a bit goofy, right? Only the manufacturer would have such information.

If you are serious, you CAN do it. Begin with an accurate Ohmmeter to measure the primary and secondary winding resistances on a new gun (at Sears, say.) To do that, measure the new gun's primary resistance at the plug with the trigger pulled, of course. Remove the gun's soldering tip and measure the resistance of the secondary without the tip and any incandescent bulb in place. (No need to pull the trigger.)

Hopefully you have some of the burned wire from the old gun. Measure the diameters of samples of the burned primary (thin) and secondary (thick) wires with a micrometer. With that information, look up wire gauge information online. You may need 24 gauge and 18 gauge enamel coated wire, for example. Note: a burned wire will no longer have its enamel coating so take that into account when determining the gauge of the "new" wire.

Note the "Ohms/foot" specification for each wire gauge. Divide that number into the resistance values you measured on the new gun (at Sears...). That will indicate the number of feet of each gauge of wire you will need to rewind the core!

Now I'm off to build my own refrigerator... NOT!




Feb 11, 2015 | Cars & Trucks

1 Answer

Why does wire keep coming out when trigger is not pulled


From the mig welder, unplug the trigger leads that exit the mig gun on the end of the gun that connects to the mig welder and power on your machine. If the wire flow stops, you have a shorted trigger circuit inside of the gun cable. If it doesn't stop wire flow, depending on your machine make & model, there is an internal issue with the trigger circuit that could possibly be just a simple relay issue.

Dec 25, 2014 | Welding Tools

1 Answer

I have a kende mig 105 gasless welder,but the wire isn't getting fed through on the feed wheel,tried different welding wire and also turned the wheel,tried tightening the wheel,slackening it as well,i


Here's a few things you can check:
When gun trigger is pulled, do the drive wheels turn? If they aren't, pull the trigger again; do you hear anything within the machine (contactors closing, gas solinouds opening, any clicking, etc.) that would indicate the trigger circuit is functional?
If the drive wheels are turning, but wire isn't being pushed thru the mig gun, check for proper drive roll vs. wire size. If that is correct, check gun liner for obstructions. Flux cored wire tends to stop up a wire liner fairly quickly.

Dec 21, 2014 | Welding Tools

1 Answer

Hobart beta 200 arks without pulling trigger have to pull trigger to feed wire


I was a service tech/manager for 10 years and had my repair business for another 8 years after I left the company I worked for. Can't really remember that exact machine's theory of operation, but check your weld output contactor. Sounds like it might possibly be stuck In the closed position.

Nov 03, 2014 | Hobart Welding Tools

1 Answer

I have a hobart 135 handler that with machine plugged in and turned on the wire has constant juice and the gas cylonoid is flowing gas from the bottle without the trigger being pressed. my dealer said it...


Hi:
Have you disconnect the gun's power plug? If the wire and gas stop flowing by doing this action, then your problem is the gun's trigger. If the machine continues to feed gas and wire with the gun disconnected then yes, it is the pc board.
Good luck.

Aug 25, 2011 | Hobart Welding Tools

1 Answer

My hobart handler 120 will not feed wire. took the feed motor off and tested. Its good. checked the trigger connections and they are both in good shape. The gas valve does click when the trigger is pulled....


First take our the spool of wire, then without any wire restriction, disconnect the gun from the machine and bridge the trigger connection, if the solenoid valve opens then the motor shoulod run. If it does, then check the trigger on your gun, take it off and bridge the cables, if it runs then your trigger switch is faulty.

Dec 28, 2010 | Welding Tools

1 Answer

Miller 350p welder gives a "help 3" code.



Code help-3 Indicates that the gun trigger was pulled and held during power up. Release gun trigger and clear fault condition. Also, this display can Indicate no open circuit voltage detected when gun trigger is pulled and no arc detected within 3 seconds, this means that the trigger was held without any metal contact. The machine will shut down in order to avoit the wire to continue to run freely.

To fix:

Turn on the machine without pressing the trigger on the gun. Then increase to the max the wire speed. Then turn off the machine. Press the trigger after the machine was turn off, then without releasing the trigger, turn on the machine and release the trigger after 2 seconds. That will take care of it.

Nov 17, 2010 | Miller Welding Tools

1 Answer

My little 110 mig welder is arcing without trigger pulled


i believe that the trigger only send out the wire and does not control the arc the tip should be live as long as the welder is on

Feb 28, 2010 | Lincoln Welding Tools

1 Answer

Welder feeding or arking


Release the wire feed rollers,turn the wire feed dial up to maximum ensure you are well away from the earth clamp, pull the triger, you should hear the relay click in, if it dosn't check the 5 mil anti serge fuse positioned on either the front of the set or on the control panel near the wire feed rollers inside the cabinet. usualy covered by a plastic screwed knob, make sure the unit is unpluged before any testing.

Jan 18, 2009 | Welding Tools

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