Question about 1998 Jeep Grand Cherokee

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Fan motor only works on high - 1998 Jeep Grand Cherokee

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Classic,
bad fan resistor block or bad switch (rare)

Posted on Nov 28, 2013

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6ya6ya
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Posted on Jan 02, 2017

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2 Answers

Blower fan not working


The resistor bank is bad for slow speeds, the switch is bad for high speed. In your test, you have voltage, but the switch wont carry the amps, to run high speed. Open circuits will not blow fuses. Replace both switch and resistor bank for all speeds. Make sure to clean leaves and trash from fan housing and see if fan spins freely.

May 17, 2017 | Cars & Trucks

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Heater / air conditioner fan control doesn't engage fan. Previously, it only worked in high speed.


I would replace the blower motor resistor first then see if that corrects this. The resistor is located next to the blower motor under the dash.

Jul 16, 2012 | Cars & Trucks

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Only high speed works on fan motor


This condition is caused by a defective blower motor speed control resistor. The resistor is located right next to the blower motor with the connector end sticking out of the ducting for the AC/Heater system. Very easy to replace and the part is cheap as well.

Jul 06, 2012 | 2002 GMC Sierra 2500HD

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Fan which blows heat doesn't work when toggle at dash board is moved to high.


When your fan switch is placed in the high position, it feeds directly to the fan motor and bypasses the blower motor relay. If the fan is operating on speed 1-3, then you have one of two things wrong, either you have a blown fuse, or the fan selector switch is faulty on the high setting.

Mar 29, 2011 | Geo Tracker Cars & Trucks

3 Answers

My lower fan speed don't work except for the high, the fan high speed stay highest


Hello sanjuis24
It sounds like you've got a bad blower motor resistor. The resistor is located under the right side of
the dash at the blower motor. A new resistor is not very expensive and it's a fairly easy DIY.
Hope this is helpful

Mar 07, 2011 | 2003 Chevrolet TrailBlazer

2 Answers

Heater blower stopped working?


Hello,
You may want to try your fan on all speeds. If it will work on high, you have a bad resistor for the fan motor. ( high speed doesn't go through the resistor ).
If it doesn't work on any speed, I would check the following;
1. Make sure the fuse isn't blown for the fan blower motor.
2. Check, or have checked the wires between the fan control switch and the fan blower motor.
3. Have the fan control switch checked.
4. Have the fan blower motor checked.

I hope this helps you.

Feb 03, 2011 | 2002 Buick Rendezvous

1 Answer

Cool fan low doesn't work. Doesn't appear to be


It needs to have the blower motor resistor card replaced.
It still works on high speed because on the high setting the voltage does not go through the resistor.
The resistor is mounted beside the blower motor and is easy to replace.
There you are, thank you for using FixYa.

KL

May 01, 2010 | 2003 Saturn VUE

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A/c works great when fan is on high speed when


Could be as easy as a new blower motor switch or blower motor resistors.

Apr 16, 2010 | 1995 Nissan Pickup

2 Answers

Blower fan has stopped working except on high


The motor still works. A DC motor is speed controlled with a resistor. Luckily, the resistors that do this are mounted on the motor housing. See the following link. The resistor pack is quoted as costing about $10.
http://www.automotivehelper.com/topic294308.htm
Steve

Jun 23, 2009 | 2006 Chrysler Sebring

1 Answer

Fan motor only works on high. Do I need to change it out? If so, how do I do it?


hey there,,no you just need to replace the blower motor ressistor,,if its worken on high then its working,,,the ressistor determins speed,,,hope that helps

Apr 22, 2009 | Ford F-150 Cars & Trucks

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