Hey Al. Thanks for the tip. That covers the red control knob issues, but what about the air intake valve at the unit end? Any advice about that?

I'll definitely try what you suggested before I take this unit back. Oh, another question. I had the red knob control open to full when I turned on the propane. Do you have yours turned to the closed position before you turn on the propane? Did you get your fryer at Home Hardware?