Seeking help! Why does my blower resistor keep going out? Please help!

Thank you so much for sharing your story with me , and as we speak right now I am as you said "Biting the bullet" and having a new blower motor installed and the pigtail and the resistor, so I should be in good space for a while, or at least I am praying after replacing all of these things that this issue of having to replace resistors and pigtail wiring will be at an end finally!!! Again, thank you for getting back and for sharing your experiences and thoughts and suggestions! "Happy Heating and cooling to us all"

You are overloading the resistor. I would replace the blower motor. In the future, the cardinal rule should be when you replace one, replace the other

well...i have done all of the above...at one point the blower motor was bad...brushes worn out...replaced....then it happened again...so i have done this 4 times now....wires were getting hot so i sodered all of the connections including the two leads to the motor....worked for awhile then failed again...was getting real hot on highest(5) speed so i just used 4 and three mostly ...failed again....found a burned pin connection....third from right(first time there)...just replaced again...Advance Auto did refund and provide one more...my guess is a ''Gm" design flaw and all aftermarket suppliers are just building theirs with original specs and no one is truly addressing the issue...one more time and it is a bypass w/fuse...so then it will be either on or off but i may try the ground things as mentioned in one of the posts