My gas dryer, a 1991 Kenmore Model 110.77694100 does not heat up. It tumbles okay and I can hear a switch click when I turn the heat control but the heat does not come on. I looked for a gas ignitor on the diagram but the only thing shown there is a Burner Assembly (279894) which sells for about $104.
I need to take the back off of the dryer and inspect the burner assembly to make sure there are no obvious problems (mice eating the insulation off a control wire, etc). I will also check with a volt meter to make sure voltage is getting to the assembly when I operate the heat control switch. If everything looks good that far, I suppose I'll wack the burner assembly with a hammer.
Any other ideas that I might look at?