Blower Motor Partial Work / No Work

I have a 2001 Taurus. About 6 months ago the blower motor began to only work when it was tuned to the highest setting. So you either had no air or super blasting air :) Yesterday, the motor quit completely. It does not work on any setting. You can still hear the ac clutch or whatever all is behind there working, but the blower motor simply doesn't turn on. I have checked the fuses and relays under the dashboard and in the engine compartment. They are all okay, anyone have any ideas? I wasn't thinking it would be the actual blower motor that would burn out like that in partial steps, I figure it has to be something electronic, but I'm not smart enough to know what the electronic part might be. It's going to be 95 today, give me some ideas!!! Thanks so much Guys!!!

OK, SO i replaced the blower motor resistor assembly. It was 15 bucks. That didn't do a thing. Still same problem of no blower at all. Does anyone know how many amps are supposed to be supplied to the blower motor. I got some electrical readings from the power connection to the motor, but I can't remember exactly what the reading was. So, I am figuring that if I am getting some electrical reading, then it is probably the blower motor. That just doesn't ecplain what I talked about further with the fan only working on high for 6 months and then yesterday giving out completely. I would think if it was the blower motor itself it would have just given out all at once. I don't know. I'm at a loss now what to do execpt for buy a 100 dollaror however much it costs blower motor and hope that fixes the problem. ANY help at all would be great guys.

Thanks

You should be able to test the circuit to the motor by disconnecting and putting a test lamp to one of the pins from the connector going back to the wiring harness. With the aligator clip of the lamp to chassis ground and the other to one or the other pins on the connector you should get a light when the blower is switched to on. You should also be able to jumper a hot lead from the + battery post to one side of the blower motor and one side of the blower motor to chassis ground and the motor should run. If it is connected in reverse from normal it may turn backwards but shouldn't hurt anything.

Well, replacing the resistor assembly didn't do any good. The motor still does not run. SO i got a new dash control switch for the A/C, replaced it and still the motor won't work. I bought a voltmeter and am only getting readings going to the motor when the switch is on high, but even then, the motor doesn't run. So, now I think I have a burnt out motor..probably from running only on high for the past 6 months and I am still back at the same place of not knwoing why it only works on high, when the motor does..or did actually work. I pulled the blower motor out last night and it does not turn very freely. It's not like frozen you can turn it, but it does not spin at all freely. I guess ill hook the motor up to my batery and see if it spins at all that way. So anyone have any other advice besides buy a new motor and then I'm still back to terying to figure out why it only works on high? HELP!!!

jason i have the same problem with my 01 taurus can't figure it out. did you finally change the blower or was it some other problem any info would be great

Ok I have seen a few things like this happen. If the blowermotor is not blowing air accross the blower motor resistor well enough the resistor will burn out. I have seen it not only take out the resistor but the blower motor will heat up enough where it will melt the fuse as well but not blowing it. The plastic on the fuse will actually have bubbles in it and the connection to it may be melted as well. the fuse will have resistance.

One thing to remember is that ford uses ground to switch the blower motor not positive.
On the high setting u are using a seperate fuse and the blower motor relay itself. on a overheat condition this may go bad or may be the origonall cause of it all in the first place. Our fleet goes through alot of blowermotors, resitors, fuses, relays, controls. In my opinion its because fords wiring is not rated high enough to take the long term abuse. Also ford connections seems to corode easily so check them.

One last thing make sure u replace the cabin filter since if it gets clogged it will also restrict airflow. Cheers.

Forgot to update:

I have now put in a new blower motor, replaced the dash control switch, replaced the resistor assembly, checked all of the fuses and relays and still it only works on high. :)

First things first then. Remove the blower motor connecter. Turn the switch to anything but off and max. Check for b+ and ground. by first putting the mutlimeter black wire to the vehicle ground and seeing if one of the wires going to the blower motor has power then check the ground side by putting the red lead of the multi meter the battery posivite and the black lead to the blower motor wires to see if you have ground thier.

If i remember right these things are switched on the ground side meaning ground goes from the car through the switch then to the resistor then to the blower motor. and then out of pos lead of blower motor to the fuse then finally the ignition switch.

i just got my car yesterday lol. Remember thiers One fusebox inside and one under the hood of these cars. man they need to upgrade the servers that server busy message is annoying lol.

2001 Taurus, blower motor stopped working, 91,000 on the car. I was lucky and had no cabin air box leak/corrision issue (Ford tsb out on this one). The blower motor just got tired as my wife probably never turns it off. I didn't take the motor apart, my guess is there are no brushes left, there was carbon comming out of the motor when tapping it on it's side.

Popped in the new blower and it's back to new again. The blower motor is not very difficult to change, takes about 1/2 hour. I did inspect the cabin air filter area, I was fortunate with no leak issues.