Well it just gets better,
I came home today to a chilly 62deg sure enough the $211 hot surface ignitor failed.
I called around and found a place not far from here that sells them for $20
I was going to go get one and swap it out myself.
But I thought I better give them the opportunity to correct their work.
They said they back their work for 30days after completion.
So now I'm waiting in the cold for a tech to come out and swap out the $211 HSI
They better show up tonight because I would have gone to get that replacement HSI and would have had heat tonight.
I opened the furnace up and vacuumed it out to be sure the little dirt like particles that build up in furnaces wasn't causing the ignitor to burn up. While in there I inspected the circuit board. No bubbled up capacitors all wiring looks fine.
The little status light on the circuit board didn't indicate any problems (diagram on the panel showed some diagnostic flash sequences that could help to troubleshoot problems)
*Edited to add*
well 5 hours later a new ignitor is in.
It seems a fingerprint on the one put in Sunday burned it out.
I'll be buying a few to have on hand.