2016 RAM 2500 TD intermittent A/C issues

[jmyork88]

Occasionally my A/C blower wont work correctly. I will have the fan speed at max with minimal output. Tried circulating vent patterns (defrost, face, feet, etc) to no avail. There is also a noise associated with it (a "tick tick tick tick" that speeds up or slows down when adjusting fan speed). After a few minutes it will come on or sometimes not until restart. Is this a common issue? Blower or blower resistor?

 

[Nick_rp]

Blower fans are plastic. Drive shaft probably hogged out the center, became loose or key way lost the key (not positive about your blower having a key way).

Also, possibly have debris clogging up the fan. The external area just below wipers is prone to accumulate foriegn material and can make it's way to the fan. To much resistance (lodged debris) can cause fan to fault out.

Easy to diagnose with a quick visual inspection. If it's good, boom, made the list of culprits shorter