Goodman 100-3 will not heat
Problem is with Goodman 100-3. The ignitor will glow and then go out. It does this 3 times then stops completely. No flames at all. Looking through manual can not find where the circuit board is located. I've been researching online and it states to watch for blinking lights from the circuit board and this will help get a "code" to diagnose the problem. Have no idea where the circuit board is even located. No heat is being put out at all. Motor will run just briefly as the ignitor is glowing... then it all stops.