My Buzz is dead. Red light, yes. Blue light, yes. No fire to carto, no matter what permutation of batteries and cartos I try. Dead dead dead.
A few weeks ago it did this same thing, so I followed the advice here and took the cap bit apart, cleaned everything in alcohol, pure water rinse and dry and put it all back together. It worked for about a week, then started missfiring again. then dead. Did the "jiggle the side screw" thingie and that seemed to fix it for another few days. Then dead. Nothing working at all except the lights.