Fan motor

[ruffo66]

Hi, Last week I was driving home w/the AC on and went to shut it off when I got home and it wouldn't shut off. So I started pushing buttons (auto/fan speed/temp etc) and it finally shut off. Everything was fine until yesterday. I was coming home w/the AC blasting and all of the sudden it stopped. I can hear all the vents moving when I change vent positions but I have no blower, (no defrost or heat or AC). Does this sound like the blower control module? And if it is, where would be the best place to buy one? Thanks in advance for any answers. Ruffo66

[imidazol97]

Originally Posted by ruffo66

Hi, Last week I was driving home w/the AC on and went to shut it off when I got home and it wouldn't shut off. So I started pushing buttons (auto/fan speed/temp etc) and it finally shut off. Everything was fine until yesterday. I was coming home w/the AC blasting and all of the sudden it stopped. I can hear all the vents moving when I change vent positions but I have no blower, (no defrost or heat or AC). Does this sound like the blower control module? And if it is, where would be the best place to buy one? Thanks in advance for any answers. Ruffo66

Don't know the year for your car. If it's ECC the auto dual climate control it should have the blower control module on top of the heater blower box, under the relay maxifuse panel. That loosens with one bolt, IIRC, and you can check the control for blower. You can use a fused lead to supply power to the blower directly from battery to check that it does work. You ay have to ground a wire.

You answered your own question about in advance because people have said Advance Auto sells replacements somewhat reasonable in price if you diagnose that the problem is the blower control module.

[ruffo66]

The PA is a 95 with auto climate control,can you explain to me a little bit more on how to check to make sure the blower is ok.Can i just run a wire from the battery right to where the connection goes to the blower motor and use the negative side of the battery for the ground? Thanks for the quick response ruffo66

[HotZ28]

The blower has a purple wire (power) and black wire (ground) where it connects to the blower motor. Run a (25 amp fused) hot wire from the battery to the purple wire terminal, or just strip back a small section of the purple wire and touch the "hot" wire to it. The fan is already grounded if the connector is still in place. Here is how to test the blower control module:
http://www.automotiveforums.com/vbul...d.php?t=589343

[kok328]

Yes you can hook the fan motor to a direct 12V source and ground it to the battery or the chassis. I had to do this last winter while I gained enough knowledge to realize that my control panel was shot. I fused it and ran a toggle switch to the inside to run the blower. I didn't get fancy with any multi-position switches or resistors so it was pretty much all or nothing on the fan speed.

[HotZ28]

Originally Posted by kok328

Yes you can hook the fan motor to a direct 12V source and ground it to the battery or the chassis. I had to do this last winter while I gained enough knowledge to realize that my control panel was shot. I fused it and ran a toggle switch to the inside to run the blower. I didn't get fancy with any multi-position switches or resistors so it was pretty much all or nothing on the fan speed.

If you do this, you will need to use a switch with a relay to energize the (fused) hot wire to the blower motor, otherwise you will risk melting the wire. The blower motor pulls about 18-20 amps on high speed!

[kok328]

HotZ28 is absolutely correct!

I had to continuosly check the wire leading into the cabin. It becomes hot fast and you'll need to shut it off to cool down. Keep in mind this was TEMPORARY, somewhat risky and not recommended if your not familiar with what your doing.

[ruffo66]

Thanks for all the good info. Im off from work tommorow and will test the motor then. Thanks again to all ruffo66