Question about 2001 Mercury Sable

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Heater doesnt work at all

Neither heater or ac works at all. When i checked the fan blower motor it was seized up and didnt spin until i forced it to now it spins all the way around just not very easily

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  • Contributor
  • 18 Answers

Replace blower motor and then see if there are other problems

Posted on Jan 12, 2013

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Posted on Jan 02, 2017

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freetek
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SOURCE: HEAT/AC blower motor stopped working

It's even odd that you were getting a step-type voltage when you first checked.
Many speed regulators are simple tapped resistors with the switch selecting which tap is connected to the motor.
More elegant controls would use a semiconductor (transistor) and a few other components to supply step-variable voltage to the motor.

To determine which is used on your car, you will at least need the electrical diagram for it, preferably an aftermarket service manual - Haynes or Chilton should be available at least in the US and Canada.
Those will contain not only the electrical info you now lack but possibly instructions that will aid in locating the controlling circuit.
I suspect that circuit is faulty; if the resistor type, it will be a device with mulitple taps, if solid state, a few parts on a small board.

Posted on Jun 18, 2008

justuscc
  • 360 Answers

SOURCE: 1996 mercury grand marquis gs dash blower switch

heres the electrical diag.....58909880

Posted on Oct 09, 2008

  • 83 Answers

SOURCE: blower motor, heater fan, radiator fan not working

Blower motor problem may resistor,have seen resistor and connector burnt. Resistor is located under dash on right side on heater case, check for damage.Radiator fan has 2 relays,high and low and also has a resistor,I would start with these items. Make sure fuses are ok.

Posted on Jul 05, 2009

  • 534 Answers

SOURCE: ac blower motor

Check fuse supplying fan is not blown,
Check blower control switch is operating OK,
Check relay controlling fan is operating OK,
Check variable speed resistor pack is not faulty (the resistor pack is usually located in the blower ducting, in the blower airflow),
Check blower motor ground connection is not missing.

Posted on Aug 13, 2009

  • 102 Answers

SOURCE: blower fan not working for heat or AC. checked

check the blower motor resistor- located next to the blower motor- or check the fuses.

Posted on Nov 28, 2009

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1 Answer

Ac/heater fan doesn't work


According to my wiring diagram, the blue and white wire from the blower motor gets power from the key switch. The fan switch and resistor grounds the motor.
No blower fuse is listed.

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My heater/ac fan sometimes won't work. What do I check first?


$24the AC light does not light until you turn the fan on, that is ok, the issue with your fan only working sometimes is more than likely a faulty blower motor, in some cases it is the switch, when the motor does not turn on try tapping it and see if that makes it work, if it does then it is the motor.
the switch at autozone is part number SW295 and is $16
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cost is $24

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Heater/ac blower motor does not work,,, check fuses, didnt check blower resistor,


CHECK BLOWER MOTOR RELAY ALSO, AND USE A TEST LIGHT TO SEE IF POWER GOING TO BLOWER MOTOR, IF YES BLOWER MOTOR FAULTY.IF NO POWER GOING TO BLOWER MOTOR AND FUSE AND RELAY OKAY CONTROL SWITCH COULD BE BAD,A RESISTOR BAD MOST OF THE TIME IF YOU DONT HAVE BUT A FEW FAN BLOWER CONTROL SPEEDS.

Jul 22, 2011 | 1999 Oldsmobile Alero

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My 1991 isuzu trooper heater blower fan is not working, nor when i turn it to the airconditioner the compressor does not engage. i checked all the fuses except the ac relay fuse block, what could the...


if the lower fan speeds dont work but the fastest speed does the heater fan resistor block needs replacing. If the highest fan speed doesnt work leave it on there and check for power at heater blower fan, if power is on one wire and the other is an earth the blower motor fan needs replacing. Use a normal globe test light to check this. If no power on any wires to fan go back and check all fuses in car and under bonnet with same test light. If fuses are ok possible open circuit wire to fan.

Jan 13, 2011 | 2004 Isuzu Rodeo

2 Answers

Ac fan motor doesnt work on low speeds only on


I will assume the heater fan also doesn't work on low. You will need to replace the fan speed selector switch

Jul 26, 2010 | 2006 Isuzu i-280

1 Answer

My heat and AC fan wont come on and all the fuses are fine


What I would do is pull the fan blower motor speed switch, plug the wires back into it while you're holding it in your hand, run the car, and check with a multitester and see if you are getting voltage at the switch. Should be something like:
High=12-14 volts
MHi=8-10 volts
MLo=4-6 volts
Low=2-4 volts
OFF=no voltage

If you get voltage but the fan still doesn't work, then it's either a bad ground, or the motor is bad. If you can access the blower motor wire connections(sometimes its easier to try this with it removed from the vehicle), then you could try jumping the blower motor at the wiring connection with a known good 12 volt source, and if you STILL can't get the motor to spin then it's seized up or it's just a bad motor. If you have the motor removed, try spinning the squirrel cage by hand. Is it stiff? Seized? Probably need a new one if it doesn't spin freely by hand.

Hope this helps!

Nov 08, 2009 | 2003 Saab 9-3

3 Answers

Subject: 2004 isuzu rodeo...my ac/heater blower is not working


The resistors are in circuit only on the lower fan speed settings.
On the highest speed setting, power is switched directly to the fan motor.
Check fan power supply fuses,
Check power is available to the fan when high speed selected.
If all above OK, apply power directly to the motor to verify fan motor runs- if it doesn't the motor may need replacement/repair.

Jul 29, 2009 | 2004 Isuzu Rodeo

1 Answer

Ac doesnt work


Check the grounding of the blower motor it's self. Gm had a small issue with the blower motor loosing it's ground. Run a test ground wire from the battery to the blower motor. If this doesn't help, replace motor.

Jul 20, 2009 | Chevrolet S 10 Cars & Trucks

3 Answers

Blower on the heater/AC not working on 1998 Escort, checked fuse under dash?


Ok, first off, check the fuses under the dash. If they're all good, does the blower work only on high speed? If yes, then you have a bad blower motor resistor, which is located under the hood, near the blower motor itself. If the motor doesnt work at all at any fan speed, make sure the wiring harness that plugs into the motor under the hood is clean and tightly installed. If it still doesnt operate, sometimes tapping on the blower motor housing will kick it on, but if that doesnt work, you may have to replace the blower motor. They are available aftermarket, and arent usually too expensive.

May 24, 2009 | 1998 Ford Escort

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