Dryer runs but no heat

Dryer runs but no heat. There is no lint blockage and air flow is fine. I want to attack it myself but am unsure where to start. I replaced the electric board in a double oven last year so I’m fairly confident I can do this but was hoping for a push in the right direction. Thanks.

Looks like a coil issue so I’ve ordered the parts from here. How do I gain access to the burner assembly? Does the top need to come off so I can remove the front?

If anyone else has trouble accessing their dryer here’s a step by step.

29" Dryer Gas Valve Solenoid Coil Kit Replacement (part #279834) - YouTube