Miller Electric

Welding Discussion Forums

Home » Resources » Communities » Welding Discussion Forums

  • If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.


Announcement Module
No announcement yet.

Stock Burn through

Page Title Module
Move Remove Collapse
Conversation Detail Module
  • Filter
  • Time
  • Show
Clear All
new posts

  • Stock Burn through

    I am a maintenance manager at a small construction company.
    We have a Miller Bobcat 250 NT with an Onan motor.
    The ironworkers say that they can be welding fine then all of a sudden the power spikes and they burn through there stock. So then they turn it down a notch and it won't even spark. Does anyone know what may be wrong with this welder? I don't know where to start?
    Thanks for your imput.

  • #2
    I am not a service tech, but the Bobcat is very simple inside. It sounds like your rheostat (amperage control) may be bad.


    Special Offers: See the latest Miller deals and promotions.