20 Most Recent Miller Electric Manufacturing Electric Syncrowave 250 DX TIG 907194032 Welder Questions & Answers

TIG weding is next to brain surgery as far as CLEAN goes.
You must get your AL clean, either by 1. Clean with a NEW Stainless Steel brush or 2. by using a chemical from the welding house that is made just for that.
Your cup must be clean and your gas flowing at the right amount,no leaks in o-rings or hoses.
Hold your cup more vertical and keep your filler rod in the gas shield always,no in and out movement.
In short you must get everything perfect to get quality Heliarc Al welds.
Good luck, HowardRoark

Did the machine ever work properly? I am assuming you are using a remote for tig welding. If you watch the points, does the HF stay on after the 5 to 10 seconds as you stated. It should stay on as long as you activate the machine. Make sure your Start Mode is in continuous. See page 42. Since there are so many options, check page 34 for help setting the options. If you still cannot get ti to weld properly, contact Miller for service. https://www.millerwelds.com/files/owners-manuals/O363AU_MIL.pdf

Jon, I would like to suggest to you that you post this question on the millerwelds forum. There are some very experienced tech guys there that can help you much better. Go to millerwelds.com and select the forums under the resources tab. You will be surprised. Hope you can get it running again. Ryan

must use remote output for tig

Set the "arc balance" control between 40-50, also. You need to be up around 200-220 amps too. Make sure you're using 3/32 tungsten (green, red) and running about 25-30 cfh on your argon. Ball that end on the tungsten.

Increase your idle setting on the 1/8" threaded rod protruding to the left of the carburetor until V= 125. Then run your drill. Actuating the drill should call the throttle solenoid to open up to produce more power.

Hi:Here's the link to the owners manual. Check page 18 for the right voltage using the jumper links.http://www.millerwelds.com/om/o353u_mil.pdfRegards,

Hi:

The normal set up on the 250 syncrowave will allow you to control your pre and post flow of gas. If the post flow is set up to more than 2 seconds that's the problem. If it is set on zero, then you have a leaky solenoid valve. Check your owners manual for troubleshooting anf repair.

You can go to millerwelds.com and download the manual for this machine..it should help you

you can get the manual here:
http://www.millerwelds.com/service/locate_om.php

Check with www.millerwelds.com they should be the ones who can help you.