I have a “Reclaimer 80” “Comfort Aire” Model “GYUA120-E5N” made in Jackson Michigan.
The problem is not heat is being made by the furnace.
The exhaust blower runs constantly.
I have taken off the cover and there are no flames or red spots on anything.
It states in cover this furnace has not pilot light in the furnace.
I have never dealt with a non-pilot furnace, so this is new to me.
I have turned what I believe is the gas feed valve (control unit) off and back on as it says on the inside of the cover.
I have shut the power off to the furnace as stated inside the cover, but this has not fixed the problem.
I have not found any reset buttons to reset.

Any help would be appreciated.

Mike

Have you checked with a volt meter to see if power is getting to gas valve? You will need a meter to see what is going on. There is no other way. You cannot guess at it.