Intermittent AC Issues

[Boboddy]

So I’ve been having some problems with my AC. The three highest speeds don’t work at all and the lowest speed will only work intermittently.

I had some issues a few months ago and replaced the blower motor resistor and that fixed it.

Any ideas?

 

[OldBuzzard]

The speed control switch?

Or this:

HVAC Heater Blower Motor Resistor​

(see #3)​