About every month or so my Dodge's blower motor will stop working, and I can fix it by replacing the relay. It seems like after a while the relay gets weak and doesn't want to pull the contact closed. I can open the plastic cap on the relay and push the contact closed and the blower motor will work fine. The relay always goes bad while driving it, and when I go to replace it it's always burning hot. I've tried to trace a short on the wiring and in my blower motor with no luck. I've also tried different part's stores but I always get stuck with Borg Warner relays. No fuses are blown either when I have to replace the relay.

What could be causing my Dodge to go through so many relays?

 

Check grounds.

 

Maybe the blower resistor as well?

 

Good chance its the resistor its probably burnt and falling apart