Question about Cars & Trucks

1 Answer

In side fan switch will work on certain speeds and some time stops.

The inside fan speed switch will work in certain speeds, but sometimes will quit and start again. It started out with one speed not working now we have to keep switiching back and forth and it will come on high sometimes.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 1,335 Answers

Your resister or heater motor may be going bad.

Posted on Dec 07, 2016


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What will keep heater fan from working( both fuses check good)?

The speeds are controlled by a resistor pack. Changing the resistor pack may restore full functionality. Volvo heater fans are notorious for squealing. Usually they are run at a speed that doesn't squeal. If it squeals at one speed, sometimes a different speed won't squeal. The resistors seem to eventually fail. They are fairly cheap to replace.

Feb 18, 2015 | 1994 Volvo 940

1 Answer

Speedometer does not work all the time, sometimes it will start working then stop or it will not go past certain speeds

bad speed sensor on trans buy the part its easy to replace on the side of trans one connector

Feb 10, 2011 | 2003 GMC Sierra

1 Answer

2005 gmc sierra heater fan quit working. I lost the fifth speed months ago and a couple of days ago lost the other four, the first day the fan would come on sometimes while driving then quit after a while...

1-4 speed are the blower motor resister . It controls all 1-4 speeds, also it's under the passanger side dash around fan, the 5th speed runs off a fuse the is located in the fuse box. It's one of those square fuses , not the relays but fuses. The resister will run $15 and fuse $5 . Good luck. I have replace these before

Jan 03, 2011 | 2003 GMC Sierra 1500

2 Answers

Gas gauge given a false reading when starting it goes to full mark and then it drops down to where ever, also on switch for heater only works in high could these problems be related to each. The low and...

You will need a new blower switch. That is the one you move to change fan speeds. The high blower relay is ok since that is the only mode operating now. The fuel gauge problem relates to the sending unit inside the fuel tank. If the fuel pump has not been replaced in a long time replace the sending unit along with the fuel pump. They are connected together in the tank

Apr 26, 2010 | 1999 Oldsmobile Cutlass

1 Answer

5 speed fan on h&a #5 quit 1st and now all speeds have quit working. What does this sound like , switch or relay. Can I disconnect wiring at the fan motor and tell which is bad with a volt meter.

There is a voltage regulator somewhere in that circuit. it controls the speed of the motor by changing the voltage in the circuit. Trace the wire back from the motor and you will find it, it's between the switch and the motor. They sometimes get hot and stop working on certain speeds. Change it out with a new one and check the amperage on the circuit to make sure you won't cook your new one. Good luck.

Apr 18, 2010 | 2006 Chevrolet Silverado 1500 2WD

1 Answer

Heater fan stopped working, 1,2,3 speeds at first then speed 4 and finally speed 5 quit.

if they went out 1 at a time then this is more than likely the actual switch change it and i think your cured

Jan 15, 2010 | 2002 Pontiac Grand Prix

1 Answer

Speed changhes on it's own and now it hAS STOPPED

I would see about the blower motor resistor first, it controls the the fan speed, if its not that you probably have a bad blower motor. Good Luck

Dec 08, 2009 | 1999 Jeep Cherokee 4WD

2 Answers

1997 Pontiac grand am heater

If you are certain there are no blow fuses, that leaves two things I am aware of that could be the culprit.

1. Blower motor resistor. Its a component, located inside the blower motor housing on that vehicle. Though, typically, when this goes bad it usually only takes out one or two fan speeds, like maybe speeds 1 and 2 or it might take out the high fan speed, its not really known for taking out all the fan speeds at once, although it could do so.

2. That leaves the blower motor itself. I dont see many of these go out without giving warning, such as making some kind of noise, but again, its not unheard of for them to just quit.

I would make certain that all the fuses are good, even check fuses under the hood that may provide protection for the HVAC system or even the blower motor itself.

Jan 01, 2009 | 1997 Pontiac Grand Am

2 Answers

The Fan speed has stop working on all setting except high/

so your fan stopped working on all settings but high....? sounds like a bad switch...i know alot of jeeps and fords have that problem....lemme know....might hafat add another car to the broken fan switch

Sep 30, 2008 | 1997 Pontiac Grand Prix

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

17 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts


Level 3 Expert

77939 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

14405 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides