1964 FD Vent Free Dryer
Hi Jacob, tell what you found, are both blowers running? Rear blower belt good? You should feel some air blowing out the rear top openings in the black rear panel.
Try running the dryer with the door open, you should feel some suction through the holes below the lint filter area. If you put your hand toward the top rear [ inside ] of the drum you should feel some good heat within a minute, if not check the amp draw while the machine is running [ should be around 20 amps on both hot lines.
If amp draw is way low you either have a bad heater element or the dryer is not connected to the power source properly.
There is no thermal fuse in this dryer.
Very little of the information in replay #13 is useful, I have had two of these FD no vent dryers for over 25 years, one in each house. They do not need much routine cleaning and neither has ever developed any musty smells. Your dryer may need repairs and cleaning however.