used miller dialarc

[BLACKSI]

i just picked up a older miller dialarc tig machine. It works great but i am having a problem.the problem is it flo's argon continusly. I tried adjusting the post flo no luck. I unpluger the foot peddle no luck. is there a interanl switch to stop this or do i need to replace somthing? any help would be great.

Beau

[Compchassis]

Sounds like the gas solenoid is stuck open.

[BLACKSI]

i thought of that so i unpluged one of the wires going to the solinoid and it shut off.

Beau

[cruizer]

Sounds like you have a stuck post flow relay, open the covers up, you'll see a relay marked TD1, tap it with the back of a screw driver. This should free the contact ponts. You may have to replace this relay.

[BLACKSI]

is the relays the same unit the the post flow dial is on?

Beau

[BLACKSI]

anyone know were i can find a wiring diagram?

Beau

[cope]

anyone know were i can find a wiring diagram?

Beau

Look for the manual on this site. You may have to pay for it, but many are downloadable.