Can feel heat/AC but cannot increase speed, stuck on 0 it seems like. used to turn on and off and now it currently doesn't work what so ever. Took it to a shop and they said that it was the fan speed resistor. Replaced that and wasn't the issue, so i returned it. Just replaced the blower motor itself and that is not the issue either. The only thing else i can think of is that its the switch itself. What is everyone Else's opinions?

 

Well sounds like you have about zero idea of what you're doing and you're just wanting to throw parts at it and not diag it.

You could check to see if you're getting power to the blwoer motor, which it sounds like you aren't. And then see if you're getting power to the resister. And then maybe see if the fuse that feeds that circuit is maybe blown......

However, it seems replacing parts is how you fix things.... so yeah, go ahead and replace the hvac unit.

 

Like i said i took it to the shop and they diagnosed it to be the resistor, no power to the resistor. Replaced it like they told me to and its not the issue. Fuses are all fine as the shop and I both checked them. Whats left?

 

If there is no power to the resister, then that does not mean it's the resister. It means you are not getting power to the resister....... so now you have to find out why. So, you get a wiring schematic and find the open in the circuit.