Thats a good question I have a nice flame off the end of the arc and I changed nozzles as well from 7 down to 4 but still melts the electrode.

I'm tried using Lanthanated 1.5%,Thoriated 2% & ceriated 2.0% all 1.6 & 2 And they all melt the tip.

I have turned it off but the current seams to be erratic as well.I Have been thru the manual reset all settings rechecked settings tried reducing the peak current as down as far as 0 then bring the back up in stages of 5 amps but nothing changes hence my appearance in the forum. Thanks to anyone who...

jtybt wrote:You should have DCEN or the torch connected to NEG.

Thats the way its connected

Im new at tig welding have welded Mig,stick,gas without any problems but I am having problems with the electrode burning,have tried lower amps makes no difference,Its an allmax 200 ACDC Pulse.Anybody with any clues appreciate any help at this time.Regards cranetruck