PowerPro 256 no arc? Help!

[HemiRod23]

I have a PowerPro 256, and have been using it successfully since last June. Tonight I went out to weld, and I can't get an arc. I even tried to strike an arc on the ground clamp, and I just get a tiny little spark, but no arc.

Wired for 220v 50A

Settings are:
TIG/HF
no pulse
DCEN
all connections are clean and tight
The argon flow is working, I have pre and post flow
Arc start is 75A, arc end is 50A
3/32 tungsten 2% Lanthanated, clean and tight

I use the foot pedal, and the digital display shows the amperage changing when I move the pedal... just no arc.

I'm confused. It has always worked flawlessly. Anyone have any ideas? Thank you!

[Rambozo]

Have you tried the other processes, like stick or plasma? How about AC? Making a list of what works and what doesn't can help support determine your problem. Give them a call and if possible be at the machine so they can walk you through some basic troubleshooting.

[DaveO]

Sorry to hear you're having troubles. Checking out the machine's other processes is a smart idea. And just to tick items off the list, you might put a volt meter on your wall outlet to make sure that hasn't failed somehow. Tech support *will* ask that question, so doing it in advance will just speed things up a touch.

[everlastsupport]

Make sure both hot legs are there, correct. Ground to each should give you 120VAC roughly or better. 240plus across them.

Points could be a hair to wide as well.

Best to call tech support Monday 9AM PST and ask for Ray, he will get you straight. 877-755-9353 (877-755-WELD) ext 207.

[performance]

Check that a wire has not come loose in your plug...minor issue that can cause a lot of bigger symptoms.

[HemiRod23]

OK, I tried AC stick and it worked fine. Then I tried TIG again, and I could get an arc, but had to scratch start. Seems like the HF has a problem. Sound like a points adjustment issue?