Announcement

Collapse
No announcement yet.

Hobart tr-250-hf 4 rear Diodes near fan

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Hobart tr-250-hf 4 rear Diodes near fan

    If any of these diodes are bad could that cause the machine to have low welding output ac & dc and?
    Could bad diodes also not all allow any function with the tig pedal and not engage the K1 relay at all?

  • #2
    The output diodes will have no affect on the operation of K1. Make sure that if there is a preflow option that it is working, and that you have 24Vdc off CR1 control rectifier.

    Comment


    • #3
      Hello Keith I installed the new 4 diodes today and turned the machine on and tested for any power at the rectifier I do not show any power on any of the 4 pins.I looked the the manual you sent and traced all the wires but I am not sure what wire should have power at the rectifier

      Comment


      • #4
        Keith are there any power pin charts for this machine?

        Comment


        • #5
          Sorry, there is no tech manual for this unit that provides voltage or resistance tests.

          Comment

          Working...
          X