Frigidaire Dryer Not Heating - Still Tumbles

Frigidaire Stackable Washer/Dryer Combo Model FEX831FS4

The dryer stopped heating. It will still tumble normally but no heat.

I did search the model and it appears that there are a few possibilities Thermal Limiter, Dryer Heater Assembly, or Thermostat. Is there a way to narrow it down to one so I’m not purchasing unnecessary parts?

Thanks in advance