20 Most Recent Miller Trailblazer 302 Welder Generator 907217 907216 - Page 9 Questions & Answers

it would appear that there is current or voltage control probably from a dead short in the circuit or a problem voltage control regulator probably best if you discuss it with the service agents as to what is wrong and get a proper diagnosis

If you have 3 phase power, it wont work unless you have a convertor to convert it to single phase

So I spent half a day swapping boards from a good 450 axcess from what I found between testing and the manual the net wait stands for network updating. The problem I had is the pc7 board (user interface card ) had a burnt spot on the solder joint for the ground I replaced the pc7 board and this fixed the problem.

More likely the transformer has a shorted winding.

Most common problem for no output is the brushes, you should also have approx. 3 ohms resistance across the slip rings. Can get you more info, but will require the serial number of the welder.

PDF]owner's manual - Miller

https://www.millerwelds.com/files/owners-manuals/O403C_MIL.pdf

try electrozad supply,waffles electric,windsor factory supply,praxair welding supply,liquid air welding supply,future weld supply good luck

The original battery is rated 430 cold cranking amps and 75 amps reserve Group 58. What I have found locally in that group size are: one with 850 cca, one at 700 cca, and one at 550 cca.Bobcat 250 Battery. this is all I could find out. http://www.millerwelds.com/resources/communities/mboard/forum/welding-discussions/33890-bobcat-250-battery

Check to see if the starter solenoid turns on a 12 volt test light when the ignition is held in the crank position.

Your dialarc HF has a selector for polarity, DCEP (electrode positive), DCEN (electrode negative) and AC. DC TIG welding is done in DCEN only with the high frequency turned to start. When welding aluminum, you must be in AC with the high frequency turned to continuous. Other machines may be different, but that setup will be how you need to set that dialarc HF. The old school tungsten recommendation has always been the green or pure tungsten when welding aluminum on AC with a transformer machine, which is what you have. However, pure tungsten will not be a good choice for inverter style machines or when welding other metals besides aluminum. So instead of having multiple types of tungsten running around in your tool box, I use the blue or 2% lanthanated tungsten for everything. I find that it has excellent arc characteristics on both AC and DC, you can also sharpen it to a point when welding on AC, which is very useful in directing the arc when tacking up your aluminum job or starting out at low amps.

the following link has millers welders owners manuals http://powertool.manualsonline.com/manuals/mfg/miller_electric/miller_electric_welder_product_list.html

that indicates bad short in the unit could be a wire bare into the unit or a transformer failure it is happening on the utility power side of the unit and not on the lower votlage section take it in for an electrical check and quote

it could be a stop solenoid hole or a simple oil filler hole that the plug has fallen out of contact an onan service center and ask the service person what would be missing

Best to get the make and model of the welder and go from there.

Remove any paint or rust and make sure your ground clamp has a firm grip on whatever your welding or welding on and a nice clean surface check all welding leads

Go to www.millerwelds.com and download an owners manual for free. have your serial number handy..

Shorted rectifier (diodes) assembly. 2 flat pieces of aluminum. follow the weld leads back. I think it's on the left.

sounds like a stuck solenoid

Here you go: https://www.gemplers.com/docs/manual/192245MANUAL.pdf