Hi all,

This is my first post so please be gentle... Haha... I'm hoping I may have missed something in the excitement of getting my new diversion 180. It doesn't seem to be playing well on AC (aluminum) mode. It makes a loud buzzing at the electrode but can't get a puddle to form. But it seems to working properly on DC. Here's the set up:

Miller provided electrode 2% ceriated (dressed to nice point)
flow gas argon at approx 20cfh
material thickness .180" T6061
amperage.. Recommended setting
ground clamp attached to workpiece

I've done a considerable amount of welding in the past with both AC and DC but never with an inverter unit.

Am i missing something?? Any thoughts??

Thanks in advance for you help!
Happy Holidays!