hvac blower doesn't work , fuses all check ok

Have you check the relay and selector switch ?

Most common is the blower motor resistor that goes bad. But first you would want to run a separate power line to the blower motor to make sure it works. Another thing that happens is the blower motor looses ground, it is mounted in plastic, may have to run a separate ground wire to the blower motor.

One day it was working fine, shut engine off and when I started it again the blower wouldn't work. . the next day blower worked fine. 2 days later blower quit working as I was driving and hasn't worked since !

First thing to check is the blower. jumper 12v to the terminal on the motor to verify that it is not the problem...it could be as simple as a bad ground

Did you fix the problem? What was it?

I’m having issues too, same scenario, all fuses OK. My first symptom was blower level 3 stopped working, leading me to believe it’s the climate control switch. I went over a bump and it started working again, then another bump put it out again and hasn’t worked since. (I did try going over the same bumps a third time, lol...) The climate control switch looks a little weird, but not totally fried or burned out. One of the seven female connections looks like maybe it’s shoved too far back, but otherwise pretty good. I hear a small buzz sound from the blower motor when selecting different climate levels for a brief moment, then it quits. If it were a ground issue I wouldn’t hear a damn thing, correct? So might be the actual motor, or the resistor, or a relay? That’s where my logic is going, anyway.... unless the selector switch going out would cause the same symptoms & buzz....? I’m totally green when it comes to anything electrical... Ordering the selector switch because it’s the cheapest and easiest repair and in stock at my local Napa, then taking everyone’s input here for the next repair attempt if that doesn’t work. Please advise, my boys!