Not with my Hobart. Good right out of the box. Any Tractor Supply stores near you Bob?Get a load of this... I explained the situation to Eastwood in an email and I got a reply and they asked how long I put it in the sun, I said about 4 hours. They replied again and said I should try 6-8 hours! Can you believe this? The damn thing should work right out of the box if you ask me! Or at least, put this sun theory in the instructions. Does everyone have to go thru this??