Miller SYNCROWAVE 250 DX TIG RUNNER WELDER 951117 - Answered Questions & Fixed issues

Your remote might be going bad. What type of remote, what type of machine with serial number?

Your polarity needs to be switched for Tig operation. In other words, the electrode will be negative. Make sure you use the proper gas for Tig, usually Argon.

Check your foot controls first the POT my be acting up change it out w/another if you have one,

Go to millerwelders.com and you will find diagrams you need.

Can you please tell me

I am workshop Officer I brought my 250dx from USA Miller tig welding 250 Dx Solve problems Exit Fine of plant in the Pl detail gauid

Some welders have a resistor that is obvious and accessible but to give an error code it is likely something else inside. You'll have to look at the circuit board for a component that is burned. If you are lucky you will find a fuse.

DC current, electrode negative (DC Straight, DC-), High frequency for start only (really don't have to use high freq at all for steel but it helps establish the arc without scratching), 1 amp per thousandth of material thickness is a good setting to start, adjust from there for the job. 1 amp/thousandth also applies to aluminum- it has a lower melting point than steel but conducts heat much better so power to weld is very nearly the same.

Use a sharp tungsten, don't ball it at all (as you would for AC work).

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It's likely that your pedal is the problem. Pull the cover and check it electrically - these have been problematic in the past. You can further troubleshoot by selecting constant output and test the output.

1. Make sure a qualified electrician specifically selected and installed your wiring and breaker for this unit.2. Carefully examine all of your power supply connections, wiring, grounding connections (clamps, lugs, and nuts) and cable. 3. Be sure you don't have a steel washer between the grounding lug and the machine power base. 4. You must have a minimum of 4 gauge wiring on your power supply and 2 gauge grounding cable. 5.Take a 3/8" socket and open up the machine and thoroughly examine with a bright flashlight for any electrical burns. 6. If the machine is too dirty to see the components, then disconnect it from the electrical service, lock-out / tag-out the electrical breaker, take the machine outside and wash it down with a hose -- preferably a light duty pressure sprayer and some Simple Green. 7. Let it air dry for 24 hours. Then re-examine.

The tungsten point has to be quite sharp, the gas has to give constant flow relative to the tip size and shroud and the amps adequate to create a spark without immediately making a mess of the parent metal. The two most common issues will be the cleanliness of the parent metal and the Gas flow. Assuming you have all this set up, it actually sounds like you have a problem with your mask as you shouldn't get flashed at all.I had a similar problem once with a solar powered auto mask because the batteries had died and wouldn't recharge. I retro fitted a couple of button cell 2032 to the mask and it's working fine.

Hi:Here's the link to your manual.http://www.millerwelds.com/om/o424e_mil.pdfRegards,

Hi:Probably your solenoid gas valve is obstructed by dirt. You can take it out and blow it with air or just replace it with a new one.

Your machine can be plug at different voltages from 220 to 575 V. All you need to do is change the position of the jumper links that are located on the back of the machine near the lead cable connector.

Hi:You will need a 125A breaker if using 220V/1ph.

Hi:Have you check the fuses? Probably your machine experienced an overload. Check your owners manual on the troubleshoot section. Here's the link to the manual. http://www.millerwelds.com/om/o480ac_mil.pdfGood Luck

Do you mean to say that the other 2 should come on, but are not? Perhaps you are welding using lower settings than before, and the machine just isn't heating up as quickly. Is there a point at which the fans do come on? Say thirty minutes into the job instead of ten? Maybe you were afraid to run it too long without the cooling fans on and so stopped prematurely, before the thermostat turned them on? Check fuses and breakers.

Hi;

Here's the link for the owner's manual.

http://www.millerwelds.com/om/o2208ap_mil.pdf


Have a great day!

Hi:

Switches wears off as any other on/off mechanism. It is pretty simple to change it. You can order it tru your nearest praxair location or at the website: www.praxairdirect.com parf number is MIL 246694. They deliver by UPS.

Regards.

Hi:

Help 4 Display

Indicates an open in the thermal protection circuitry located on
the rectifier assembly of the unit.

Help 11 Display

Output Selector switch is not in correct position

The inverter or control of it has failed. Unit will require servicing. If you are not electronically adept, this is NOT DIY. Do your best to check the control pedal wiring, especially connectors and the cord near connectors.