Our Piezo igniter has failed on our brand new MH cooker (spinflo). Worked fine on the Sat night, Sun morning no spark. Hubby and daughter (both engineers, one combustion ) had a look...nothing obvious. Checked all the usual things. I am not particularly bothered to be honest, lighter and matches are fine. Our dealer reckons he has has about 4 in every 20 fail!! Just interested to find out if this is a common problem.