Powermax bang on fire up Aug 2, 2017 10:52:42 GMT -5 via mobile Quote Select PostDeselect PostLink to PostBack to Top Post by Sparkx on Aug 2, 2017 10:52:42 GMT -5 Powermax intermittently making a loud bang when lighting up. It only does it every now and again,heats up shuts down and then on the next refire it works fine again?