welder experts! help needed!

[SUPERFLY]

my millermatic 250 stopped releasing gas out of the gun, ive traced it back and ive found that the gas solenoid is good, but when i pull the trigger it doesnt get power, is there a relay that could have gone bad? theres a shop that said they would look at it but they are 2 weeks out and want more than the price of brain surgery to look at it

 

[rollover]

Try this site
http://www.millerwelds.com/resources/communities/mboard/forumdisplay.php?3-Welding-Discussions

 

[D94R]

Does Miller put the wiring diagram for the unit on the inside of the lid like Lincoln? If not, google the model and and its wiring diagram, then bust out the ol ohm meter and see what's not getting power.

 

[Caleb]

US Welding down on Redwood is a good repair shop I've used in the past (or atleast they used to be good).

 

[BCGPER]

Does the wire feed not fire as well? I lost the mico-switch in the trigger which killed both. Cheap (like $10) fix.

 

[Herzog]

I'm confused... are you not getting gas or wire?

If no gas, check for a leak or tear in your line. If the wire is stick, change out the sheath. If no power, pull the trigger assembly apart and check. The switch could have gone bad or lost a connection.

 

[MikeGyver]

Miller has manuals on their site which include wiring diagrams... see whats driving the gas solenoid.

 

[lewis]

Make sure the gun cable isn't damaged where it goes into the housing. This is where mine went bad and from tugging the welder around the shop. Its not the best design on these. I replaced mine with a tweeco(sp?) and like it better.

 

[cruiseroutfit]

Make sure the gun cable isn't damaged where it goes into the housing. This is where mine went bad and from tugging the welder around the shop. Its not the best design on these. I replaced mine with a tweeco(sp?) and like it better.

X2, that did the trick on mine too!

 

[SUPERFLY]

already have the tweeco, (i personally liked the miller gun better..) but the wire is feeding fine, its just the gas, ive been googleing for a wireing diagram and cannot find one? its a 1997 millermatic 250

 

[SAMI]

Page 21.. http://www.millerwelds.com/om/o1308n_mil.pdf

"1997 millermatic 250 wiring diagram" in GOOGLE search, second link provided.

 

[MikeGyver]

lol...

 

[D94R]

For those who don't want to have to dl the PDF

I like that Miller doesn't use the fan motor to generate the 24V in the system unlike Lincoln, so when the fan blows you won't be dead in the water (like my Lincoln left me )