Keeprite NG furnace code "fail to ignite"

I put in a Coleman furnace a few years back, it was suggested to me by my local REA ( HEAT PUMP) cost savings, blah blah ..

It was / is a pos , its one of these modulating things it did something really similar, had it looked at under warranty multiple times.

Friend of a friend is a pretty handy HVAC tech, he came out messed with it a little , flipped t-stat to emergency and knock on wood , hasn't bothered since, been 3-4 years i think