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How to fix my a/c blower?

I have replace the blower motor, checked the ground connection by the air filter,I unplugged the motor and checked the volts, have 12.4 volts, but I lose volt when I lug the motor bck in , help.

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  • Cars & Trucks Expert
  • 287 Answers

Check and or replace blower motor resistor.

Posted on Jun 14, 2014

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Posted on Jan 02, 2017

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SOURCE: 2004 Dodge Dakota

Replace your resistor if you haven't already. I had the same issue with mine, it only worked on high.

Posted on Dec 30, 2008

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SOURCE: 1997 Chevy s-10 pickup (2.2L) Blower Motor problem

I don't know what you mean by temp module but i'am gessing the switch on the dash, but to me it sounds like the resister is bad, i believe its located under the hood on the air box if not than chk. under the dash by the heater motor, i have seen the wires burn that plug into it when they go bad, thats what makes the blower run and also regulates the speeds of the blower motor.

Posted on Oct 11, 2009

  • 23 Answers

SOURCE: no heat or ac is there a thermostat for climate

you need to go get a new control unit for inside

Posted on Apr 15, 2010

  • 1 Answer

SOURCE: 1998 Ford Contour. The heater blower stopped

I dont know what these other guys are saying..I think they snif the glue!!! YOUR BLOWER FAN ASSEMBLY CAN EASILY BE REMOVED !!
1. Remove the wire
2.Find the "tab on the housing and pull it down while rotating the fan housing counter clockwise. This will remove the fan assembly. Plage 12 volts on the contacts to test the motor. If it works then the resister pack is blown. On the fan housing (near firewall ) you will see a plug going into a square looking box with a screw in it. Remove the wire then remove the screw to remove the resistor pack.. A new resistor pack is around 20 dollars at a ford dealer. Hope thie "FREE" info helps!

Posted on Jun 07, 2010

psycodelek
  • 202 Answers

SOURCE: i have only low speed on the blower motor for

on the housing under the hood where your heater core and AC plumbing is there is a plug in rheostat that you need to remove and replace-take it off with the two screws that hold it and take it to a napa and they will sell you the replacement for about $20. Good Luck!

Posted on Oct 21, 2011

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The heat or air do not blow, this would mean the blower motor is not working, the first step would be to check the blower resistor as this is a common problem on these.The best way to test this would be with a test light.Take the test light and turn heat on then check blower connector for power, note unplug connector and test, make note of which wire has power, then connect the plug back. using a piece of wire connect one end to a good ground and stick the other end into connector on the blower that had no power and see if blower runs. If the blower runs then you have a bad blower motor resistor, this is located next to the blower on heater box, if you follow the wires from the blower it will lead you to resistor, unplug resistor and check for burnt connector. if connector is damaged then you will need to replace the connector also, then remove screws holding the resistor in heater box and remove it.
Back to testing if you do not have power on one wire at the blower then check all the fuses, Next if you have power and the ground does not turn blower on then try tapping on the blower motor to see if it turns on, in either case if there is power and a good ground to blower then blower will need replacing. Hope this is helpful good day.

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BLOWER MOTOR IS UNDER THE HOOD MOUNTED THRU THE FIRE WALL ON THE PASSANGER SIDE UNDER THE HOOD HINGE 6 TO 8 LIL BOLTS HOLD IT IN UNPLUG WIRING HARNESS AND DISCONECT GROUND PULL IT OUT CHANGE THE FAN WHEEL LOOKS LIKE AIR FILTER MADE OUT OF PLATISTIC THERE SOME TIMES A CLIP CLIP ON THE SHAFT TO PULL AND USALLY A COUPLE MEDIUM SCREW DRIVERS UNDER WILL POP IT OFF ,, PUT ON YOUR NEW BLOWER MOTOR AND REINSTALL

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The heater fan just stopped...


Check fuse #14(10amp) located in fuse box under driver steering wheel behind the lower dash cover.
Check fuse#12(40amp) located in fuse box under hood.
Replace fuse(s) if any are blow.

If fuse are good.Check blower and transisto next.
Do steps 1-3 with turn key on
1. Unplug connector and check for 12v at the blue/white wire at the blower motor(2-NAT)
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2.Plug connector for blower motor and unplug connector for blower transistor(4-NAT). Take a jumper wire and jump the blue/black wire to body ground.
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Jan 18, 2011 | 2004 Honda Element

1 Answer

My a/c blower is not blowing-when driving down the road it is cold air pushing through (or heat if heater on) but it will not blow when turned on-would that be the blower? Where is the blower?


the blower is under the dash on the passanger side. before replacing the blower motor,unplug it and hook a ground and a possitive to the connections and see if the blower motor works if it does then replace the blower motor resistor.to find the resistor follow the wires from the blower motor they will end at the resistor.
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