I have contacted Duncan but wondering if anyone else has ideas?
I bought a pp50 and it worked great the first 3 or 4 times. When I try to
use it now, I can't get an arc or air when facing the cutting surface. If I
hold the torch up it works the second you tilt it, nothing. Air is at 90psi
out of the compressor and I have tried all pressures at the machine.
Replaced all consumables and it still only works pointing straight ahead.

Any ideas?

thanks