blower motor
I have a 2008 f250 superduty and my blower motor speed switch is as follows:
1,2 and 3 is speed 3, 4 is 4, I have replaced the blower motor resistor and now replaced the whole 3 dial heater control in the dash and no improvement, now I'm lost
Are you saying the blower motor won't work? Did you check for voltage and ground? You can use a test light to check. At the blower motor in diagram, the wire color on the left is voltage, the wire color on the right is ground. The resistor is on the ground circuit, so is that hvac module on the right in diagram. You can see al the fuses, check those, some go hot with key on. See the blower relay, you can unplug relay, use jumper wire between terminals 30 and 87, see if the blower motor will run? Terminal 30, hot all the time and fuse protected. Are you sure the blower motor itself is ok? I didn't check my database for hvac trouble codes?
Blower motor works as speed 3 on fan speed 1,2,and 3 4 works on 4, I'm trying to get my 1 and 2 speeds back normal not 3 which is higher speed than wanted
Maybe the new resistor is bad.
