[Craig Hansen]

2008 Titan LE. My A/C no longer increases the speed of the blower motor when I turn the A/C control to max. It used to blow stronger when I turned it to max, now there is no air speed difference between high and max. I tried replacing the blower motor resistor but that made no change.

 

[Matt11256]

I would check the new blower motor resistor with by checking the resistance between the pins. The resistor I bought at a parts store does work but the low and 2 setting are about the same. Why idk they put the wrong resistors in it I guess. It could also be the switch its self. Mine broke so it wouldn't actually move peg arm thing that connects the knob to the switch.

 

[berto07T]

Did you use an aftermarket resistor?