Fusible Links Blown

[Tanks_Alot]

ryanjones2150, In your photo, I like the links stamped "ECONOMY DELAY". That is an interesting marketing approach!

Thanks to all for the information with my issue. These forums are a great way to get perspective.

Thanks A Lot,
TanksAlot

[Tanks_Alot]

ryanjones2150, Through my Miller reseller $19 each. PN: 212988 see the photo in my previous post.

[Tanks_Alot]

I could not find any issues with the welder so I changed out the fusible links with ones that I ordered from Miller (photo) and put back into production. Welding for 3 weeks 8 hours a day. No issues. Thanks for all your support.

[Tanks_Alot]

Thanks for the post. See photos of fusible links. Excellent suggestions. Out of town today, I will report back tomorrow....

[Tanks_Alot]

HELLO ….. HELLo ….. HELlo ….. HEllo ….. Hello ….. hello
ECHO ….. ECHo ….. ECho …. Echo ….. echo

[Tanks_Alot]

I have a Miller CP302 that has blown its fusible links F1 and F2. What would cause this to happen? Before I change them, I would like to find out why they blew.

[Tanks_Alot]

ccawgc,

Three phase to welder is good. Voltage feedback wires are good back to the pcb and I unhooked them at the pcb and measured the whole range of the voltage potentiometer as good. I also measured the capacitors as good (easy task). Now I will move on to the rest of your suggestions....

[Tanks_Alot]

I have a mm300 that just started a loud hum, too hot of weld, and does not respond to voltage control. I can't find much about troubleshooting mm300's at all. No tech or service manuals. Almost nothing on any web forums.