Question about 2004 GMC Canyon

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My blower only works on high is it the switch or resister

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That is usually caused by the resistor module for fan motor speed control. Replacement is quick and not very costly

Posted on Apr 02, 2011

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Have the same problem wiggle the harness under the glove box while its on a differant speed should work on mine its that harness

Posted on Dec 11, 2011

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Posted on Jan 02, 2017

SOURCE: my blower fan only works on high

you will need to order a blower resister its easy to swap out

Posted on Dec 11, 2009

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1 Answer

1992 chevy C1500: Heat works on low speed, no medium, and high only works intermittantly.


On any other vehicle it sounds like the blower fan switch.
The fan switch provides power or ground to the resistor and there would be a high speed blower relay to bypass the resistor.
But in your case the fan switch is part of the controller.
I don't have a diagram for a 92 but the 94 model shows relays for low medium and high speeds. Each relay gets power from a fuseable link. The high relay gets power thru the low relay if the low relay is not engaged.
If you have the model with 3 relays you may need to check them.

Feb 01, 2013 | 1992 Chevrolet C1500

1 Answer

Blower


Could be 2 things,the blower motor resister or the switch,here's a link to the resister,it's located by blower.Here's another link to where the blower motor is.Here's a link on how to remove control panel.

Dec 22, 2012 | 2002 Dodge Caravan

1 Answer

Why does my blower motor wotk on all speeds except high on a 92 s10


you need a blower resister most likely. or the speed control switch. 99 out of a 100 times the resister shot craps

Jul 12, 2012 | Chevrolet S 10 Cars & Trucks

1 Answer

Blower motor not working at all,,the fuse is good and the fan blows if i jump it to the battery


HI Get a test lamp.With blower control switch on high ,remove power wire from blower motor,see if you have power at wire ,if not check for power at blower resister which is mounted next to fan motor.You should have power on two wires,one coming from switch the other going to fan.If you have power going to resister ,the resister is bad ,if no power to resister, switch has a problem Good Luck

Dec 21, 2010 | 1997 Ford Explorer AWD

1 Answer

My Blower motor for my heater on a 99 ford escort is not working.Is it the motor or resister that is gone??the fuses look ok where is the resister located can you send a diagram


look in passenger foot well on blower case for 4 wire connector.



Behind right side of I/P, A/C-heater plenum


resister bad would still allow high speed. may be blower motor.

  • The blower motor does not operate/does not operate correctly
  • Open fuse.
  • Tripped circuit breaker.
  • Circuitry open/shorted.
  • Heater blower motor switch (18578).
  • Heater blower motor switch resistor (18591).
  • Blower motor relay.
  • Blower motor.




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Jan 16, 2010 | 1999 Ford Escort

1 Answer

2000 Ford Taurus - A/C fan only works on high; cool air is "available" but not blown as fan won't run, except in "high" position. Any suggestions?


The low speeds(all of them) are distributed threw the fan speed switch to the blower motor resister.The resister is the problem.It is located very near the blower motor.It has two screws mounting it to the blower box.It has a plug in with about 5 to 7 wires.Unplug this plug to the resister.Remove the screws.Pull the resister toward you,it mounts and rest inside of the blower case,this is how it is cooled.Now when you replace the resister,replace the blower motor.Even if the bower motor is running fine, it is pulling to many amps for the resister.It will happen again soon,if you don`t replace the blower motor.If I can help you any more,please let me know.

Aug 31, 2009 | 2000 Ford Taurus

2 Answers

F150 2004 blower working only on high position.


this is because your blower motor resisters are burned out for speeds 1,2 & 3. High speed does not have a resister.

Replace the resister. If it goes a 2nd time, it is because your blower motor is failing & drawing too much current.

it is behind the glove box I think. It is in the plenum case where air blowing on it keeps it cool.

Easy repair. May need to access throught glove box which should open all the way down when you squeeze the sides in.

Go to tascafordparts.com for a discounted resister.
Please rate as solved problem if this is what you needed.

------------------------------------------------------------------------------
Manual Climate Control System Outputs
Blower Motor Switch Resistor
Blower Motor Resistor Coils 9ba1105.gif Blower Motor Thermal Limiter 47afe58.gif The heater blower motor switch resistor has the following features:
  • The assembly is located on the passenger side of the plenum assembly behind the glove compartment (06010).
  • Three resistance elements are mounted on the resistor board to provide four A/C blower motor speeds.
  • Depending on the heater blower motor switch position, series resistance is added or bypassed in the A/C blower motor circuit to decrease or increase A/C blower motor speed.
  • An overheating protective device (thermal limiter) will open the resistor coil circuit when the temperature reaches 121°C (250°F), interrupting the blower motor operation in all speeds except HI.
  • The thermal limiter cannot be reset and is not serviceable.

Mar 23, 2009 | 2004 Ford F150

2 Answers

Front blower motor doesn't work, rear does


yes, all blower motors have them to control their speed, High, medium, low.. etc. I earn nothing by helping you, but my rating, a fixya rating and I will walk you through this

Dec 20, 2008 | 2005 Chrysler Town & Country

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