So I change out vac hose on my 07 Mt.Vernon no big deal,Worked just fine.So I figure might as well change or blow out the hose on the 09 stove. I take hose off and there's a little saw dust on the end.I blow out hose and put back on turn stove on get error vacuum switch code.Wtf R U kidding me all I did was clean out hose.So I bypass switch with a jumper and it's all good.How could cleaning out the vac hose cause the switch to go bad just like that?WELL that's a mystery to me .