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Heater blower only works in position 4 is this relay or resistor fault

Blower doesn't work on 1"2or 3

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  • 170 Answers

It's the switch itself

Posted on Nov 23, 2013

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: heater fan not working

my car is Isuzu rodeo, this morning found the blower of heater not turning no heater work.

Posted on Dec 13, 2008

StormStrikes
  • 104 Answers

SOURCE: I have a 1995 Buick LeSabre. The heater blower motor is inop in o

There are actually two possibilities for your issue. First is the blower motor resistor as you stated as a possibility. The blower motor resistor is usually located inside the blower motor housing unless the blower motor is mounted horizontally and is accessible from the engine bay (which I do not believe is the case in your Buick) in which case the blower motor resistor is going to be located in close proximity to the motor.

The other possibility is that the ignition switch is going bad. Now, this may seem strange at first, but GM ran much of the power for the accessories through the ignition switch and as a result, carbon builds up on the contacts and starts to affect the operation of the accessories. However, I dont think this is the case in your issue as that is normally accompanied by issues with other accessories like the radio and such.

I think it is more likely that the blower motor resistor is bad in your case. I believe your blower motor is located on the passenger side, against the firewall close to the center console. If you contort yourself in a way where you can look at the bottom of the blower motor housing you may see a connector on the bottom, or a small access panel. If so, that is likely the blower motor resistor.

Posted on Dec 31, 2008

Ray190te
  • 61 Answers

SOURCE: heater blower not working

Very common fault was the blower regulator fails (blower resistor)

Posted on Jan 24, 2009

  • 13 Answers

SOURCE: Blower Motor Resistor for front AC/Heater

remove glove box....its in the casing near motor.....2 screws and 1 connector

Posted on Feb 15, 2009

chuck943
  • 783 Answers

SOURCE: 2006 Ford Explorer XLT the Blower Fan only works on 4 and 3 Sp

Look under the dash on passenger side and just to the left of the blower motor housing you will see the 4WD control module.Remove the 2 screws holding the module and let it hang down and your resistors are behind this.Remove the 2 screws holding the resistors and remove.
Now I am assuming you have manual climate control and not electonic.

Posted on Feb 26, 2009

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Yahoo.comThe a/c switch does not work in any position. 1st 1 & 2 went, then 3, then 4 and finally today 5 went out


1-2-3 WHENT WHEN RESISTOR BURNT OUT
4 ON A RELAY COULD ALSO BE BURNT
5 ALSO ON RELAY THAT COULD ALSO BE BURNT
I ASSUMED THAT THE HEATER FUSE IS OK (CHECH PLEASE)
IF ALL OF THIS IS BURNING UP THE BLOWER MOTOR COULD BE FAULTY
OR THE SPEED SWITCH COULD BE THE CAUSE
LOAD TEST THE MOTOR ON IT'S OWN TO SEE IF OVERDRAWS EXIST
IF NOT CHECK OR REPLACE THE SWITCH
THE RESISTOR ARE KNOWN TO GO
BUT USUALLY THE RELAYS ARE GOOD AND STRONG
THE RESISTOR WOULD BE CLOSE TO BLOWER MOTOR
AND MOST RELAYS ON TOP OF AIR DUCK BEHIND GLOVE BOX
GOOD LUCK

May 26, 2011 | 1998 Chevrolet Malibu

1 Answer

Honda Accord 2002 heater blower control works only in the high position. The 1, 2, and 3 positions do not work but the high (4) does.


The heater blower is normally controlled by voltage sent to the blower via a resistor network.
In this case it seems that this unit also called the fan resistor is defective.
I assume that 4 is the position where the blower is running HIGH and in this position the blower is powered directly without using resistor for lowering the speed of the blower. In step 1 - 3 the blower is powered via the mentioned resistor network.

In my opinion the resistor network is defective.
Replace it !!!!.

Jan 31, 2011 | 2002 Honda Accord

1 Answer

Heater blower on 2004 Sebring Convertible stopped working. I just replaced the heater resistor 3 weeks ago and all fan positions, 1, 2, 3, 4 worked awesome. I'm looking for a diagram for the interior fuse...


CHECK FOR VOLTAGE AT HEATER BLOWER MOTOR IF NOT YOU COULD HAVE A FAULTY BLOWER MOTOR RELAY.IF YOU HAVE VOLTAGE AT BLOWER MOTOR THEN BLOWER MOTOR FAULTY.

Nov 08, 2010 | 2004 Chrysler Sebring

2 Answers

Blower motor will not blow fuse relay motor are ok


it could be that the motor itself is bad there is a relay inside the motor as well give these websites a try www.alldatadiy.com and www.autozone.com if it was me i would checkout one at a good salvage yard give this website a try to find one close to you give this website a try www.junkyarddog.com wish you the best of luck Michigan Man.

Mar 13, 2010 | 1993 Buick LeSabre

1 Answer

Heater only works on 3 and 4 setting


Your heater motor speed selector only working on a couple levels is caused by a faulting blower motor resistor.This part is located on the evaporator case next to the blower motor itself.Two bolts remove the resistor and an electrical pigtail finishes it off.The location of this is underneath the dash on the pass front side.Happy Holidays!!

Dec 10, 2009 | 2004 Jeep Liberty

2 Answers

Heater blower is not working in 1, 2, 3 and fan


MY 2003 MALIBU AC WORK VERY COOL FOR ABOUT ONE HOUR AND THEN TURN A BIT HOT AND THEN NO AIR COME OUT WHY I HAVE CHECK THE FREON AND ITS OK .

Nov 22, 2009 | 2003 Chevrolet Malibu

1 Answer

Heater blower not working


Very common fault was the blower regulator fails (blower resistor)

Jan 12, 2009 | 2000 Mercedes-Benz E-Class

3 Answers

The heater fan only works on positions 3 and 4


I dont know what the car uses , but it could be the resister if equipped , or relay. more than likely a relay on that year

Dec 01, 2008 | 1996 Honda Civic

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