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  1. #1
    Join Date
    Dec 2012
    Posts
    3

    Default Trailblazer 302 no power

    Hello Nice Forum site!

    My dad just dropped off his trailblazer 302 welder for me to use. He bought in in 2005 and he only starts it up once in awhile and never uses it. Well we checked over everything before we tried to start it but the battery was dead.

    I put it on a charger and let the battery charge up. When I started it everything was working good. I shut it off for a few minutes and started it again. This time I had no power at the outlets and nothing lights up on the panel. I Checked all of the breakers. Did on of the circuit boards go bad which one? Not sure what else to do?

  2. #2
    Join Date
    Nov 2012
    Location
    Spencer, MA
    Posts
    7

    Default

    I'll chime in till someone else comes up with a better idea.
    You didn't specify gas, diesel, air pak, or if you had read the manual or not.
    Here's the link to the gas 302 manual.
    http://www.millerwelds.com/om/o4426ae_mil.pdf
    Here's the diesel manual link.
    http://www.millerwelds.com/om/o217454t_mil.pdf
    And the Air-pak 302 manual.
    http://www.millerwelds.com/om/o229930m_mil.pdf
    Each has helpful tips on what to check for certain issues, they also have a section if you're handy with a multimeter and reading electronic schematics.
    Hopefully someone chimes in with a more precise answer soon.

  3. #3
    Join Date
    Aug 2008
    Location
    Orange, TX
    Posts
    1,214

    Default

    Did you crank it with the battery charger still connected and powered up?

    You'll not find any warnings in any of the manuals but the later TBs are known for board failures following boosting with a charger or jumping with a vehicle.

    Some have had just the power board or control board fail and some both.
    MM200 w/spot controller and Spoolmatic 1
    Syncrowave 180 SD
    Bobcat 225G Plus LPG/NG w/14-pin*
    *Homemade Suitcase Wire Feeder
    *HF-251D-1
    *WC-1S & Spoolmatic 1
    PakMaster 100XL
    Marquette "Star Jet" 21-110

  4. #4
    Join Date
    Dec 2012
    Posts
    3

    Default Trailblazer 302 no power

    It is a gas powered engine. I did start it will the charger on. The engine runs good I just do not see any power coming out of it.

  5. #5
    Join Date
    Aug 2008
    Location
    Orange, TX
    Posts
    1,214

    Default

    Quote Originally Posted by trx250r View Post
    I did start it will the charger on.
    That's what I was afraid of.

    Again, you won't find it written in a manual anywhere but a number of board failures have occurred when a TB had been cranked while hooked to a battery charger. I suspect this may be the case with your unit at this point.
    MM200 w/spot controller and Spoolmatic 1
    Syncrowave 180 SD
    Bobcat 225G Plus LPG/NG w/14-pin*
    *Homemade Suitcase Wire Feeder
    *HF-251D-1
    *WC-1S & Spoolmatic 1
    PakMaster 100XL
    Marquette "Star Jet" 21-110

  6. #6
    Join Date
    Dec 2012
    Posts
    3

    Default Tailblazer 302 no power

    Thank you for all the help. I checked it last night. The board is bad.

  7. #7
    Join Date
    Jan 2013
    Posts
    4

    Default bad board

    how can you tell if the board is bad

  8. #8
    Join Date
    Jan 2013
    Posts
    4

    Default bad board

    Quote Originally Posted by duaneb55 View Post
    Did you crank it with the battery charger still connected and powered up?

    You'll not find any warnings in any of the manuals but the later TBs are known for board failures following boosting with a charger or jumping with a vehicle.

    Some have had just the power board or control board fail and some both.
    hey duane how can i tell if the board is bad on my 08 tb

  9. #9
    Join Date
    Jan 2013
    Posts
    4

    Default bad board2

    I did not boost it or charge the battery . I was using it hard and the welding power quit and the outlet power quit .The display board shows the oil change percentage. trying to find out how to check the power board

  10. #10
    Join Date
    Oct 2007
    Location
    Cave Creek Az
    Posts
    987

    Default

    It is usually best to start your own thread, rather than piggyback on a thread that may have already been read by the pros, and not looked at again as the issue was solved.

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