My St Croix Auburn has been giving me major headaches with the flashing #2 light. I have cleaned the stove, replaced all the door gaskets, replaced the combustion fan, reset switch, vacuum switch, vacuum hose, and proof of fire. Yet my stove still shuts down at start up and flashes a #2 vacuum error. I over rode the vacuum switch and it ran perfectly. Could I have received a bad vacuum switch? Any ideas would be appreciated, thanks.