Samsung Dryer No heat

[ScottC]

Model Number: DV448AGW
Brand: Samsung
Age: 6-10 years

Hoping for some help. I've read a lot but still have a few questions before I tackle this. Dryer runs with no heat but strong airflow.

I have a gas unit. Does a gas dryer use the heating coils that I am seeing? I would assume there is a flame and an igniter, as opposed to an electric type heating coil correct? Some posts suggest that if the thermal fuse is blown the dryer will not run. Mine runs so should I assume it is not the fuse? Is anyone able to point me to a tutorial for diagnosing this problem with a gas dryer? Thanks for the help and would be happy to purchase the parts from you once I know what I need.

Thanks.

[ScottC]

Starting to get frustrated.....so I checked thermal fuse, thermistor, and ignitor and all seem to check out. Anybody have any suggestions on what to check next. Control board? Or I think I saw something somewhere about the gas relays? Appreciate any suggestions.

Thanks