Question about Cars & Trucks

Open Question

Heater does not blow

Heater fan motor not working

Posted by on

  • Big A's Auto Repair
    Big A's Auto Repair Dec 24, 2016

    Hi chris , I want to help you with your question, but I need more information from you. Can you please add details in the comment box? Year, make, model and engine.

×

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

betz73
  • 298 Answers

SOURCE: 97 rodeo heater fan wont blow i checked fuses

I would check your blower motor. That sounds like the problem.

Posted on Nov 20, 2008

jamaicanmech
  • 17 Answers

SOURCE: My 1999 Ford F150 Heater only blows out cold air

guys have you checked for a vaccum leak????? there is a little plastic ball with a vaccum line going to it that controls the outside air coming in. check for a leak in this line

Posted on Jan 08, 2009

teemossinmia
  • 265 Answers

SOURCE: 2001 Mazda Tribute (3.0 L) Heater motor functions on high only

Its the Blower Resistor....If it was the switch, it probably wouldn't work at all....But the Resistor will give you those symptoms, of working on high med or low

Posted on Jan 19, 2010

  • 14 Answers

SOURCE: I have a 1999 Jeep TJ. My heater recently stopped

Hello Tom,
This problem can be trouble shot by checking: The fuse. Are you 100% sure it is good? Get a new one unless you are sure. You said you replaced the resistor but still check it again to be sure it did not cook recently. It will appear crusty,melted carbon deposits. If you bought a good NEW heater motor check it again by getting or making some cheap jumper leads and by unplugging the heater connector under the hood, connect one of the leads to the battery then to one of the posts of the heater. Connect the other jumper to to the other post and to the connector on the motor. It should whirl around and scare the heck out of you it you get the polarity right : ) now, onto something more fun and where I think your problem is. Your control panel.... Using a phillips screwdriver, remove the screws from your face plate/facia/dash moulding covering your stereo/climate control panels. Screws located under eye glass basin,in back of cigarette ash bin and below I think. It pops off and exposes the screws to your climate control module. 4 screw/nuts allow you to pull out your climate module box. Check your connections. Most likely, your selector switch is melted. Perhaps even the harness that plugs into it is melted too. Replace the blower selector switch (small screw removes it) with a new one. Autozone carries them. If your wiring is toast, make a drawing of your color wires BEFORE you cut them free (what post on the switch the wire plugged onto by aligning the plug orientation to the post orientation "mated connections") and close to the connector as possible making sure the wire is good. Get some heavier gauge wiring and splice in and solder neat and strong extensions onto the cut wires. While you are at your auto store, pick up the appropriate female plug in connectors to fit over the blower speed selector pins. Solder these onto your extensions as well and liquid tape all bare wiring. Plug them onto the correct plug to the blower motor switch. YOUR VERY DETAILED DRAWING that you made. When I did this, I made my wire extensions about 8 inches long so I had plenty of room to solder and work. Check your connections,tape them to avoid shorts and use liquid tape on the blower speed connections if there is bare wire. Turn your vehicle on run through your selector speeds. You should also replace your RELAY. It is located on psngr side under glove box. Buy a good one. Replace this even if it appears to be working as they can get worn and as your motor gets worn, allow extra juice to backfeed and kill your heater components again. I hope this helps. If all of this fails your wiring harness may be cooked but I think this is your blower speed selector switch. I will be on here to check on you the next few days to see if you need any more help. Let me know how things turned out so I can help you more if needed. This is a very common problem with this model. Take care.

Posted on Jan 11, 2011

  • 1516 Answers

SOURCE: heater fan not working

The three most common problems for heater fans are

  1. Burned-out blower motor resistor. This is usually located on the engine side of the firewall. Sometimes one section of the resistor is burned out but others are still good, so the blower only works on the highest speed settings. If you have a burned-out resistor, check the blower bearings to make sure they are not stiff and causing the motor to draw too much current.
  2. The blower is actually working, but either the intake vent is plugged (I've seen vehicles with the heater core completely blocked by dirt, leaves and insects that came in through the vent), or the heater door is stuck closed.
  3. The motor bearings have gone bad (see # 1). This can cause the fuse to blow, although the resistor usually fries first.
I'm not sure how your car's cabin environmental control system is fused. Check any fuse that might apply, such as Vent/AC, HTR, FAN, etc. Generally you can identify the state of a blade-type fuse by inspection without removing it. If you have a blown fuse, check the blower motor before wasting money on a new fuse that will probably blow. Like any fan, it's supposed to turn easily, and there should not be any roughness or side-slop in the bearings.

Posted on Nov 14, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Blower moter does not work ( 2004 monte carlo )


Check for power to heater motor, if you have power then you will need a new heater motor. The heater motor is located under the dash on the passengers side. You can try tapping on the motor and sometimes it will start up (short term fix). There is also a resistor in behind the heater motor but normally the fan will work on one speed if the resistor is the problem.

Mar 04, 2013 | 2004 Chevrolet Monte Carlo

1 Answer

Heater doesn't blow


if its the fan ( not controls ) drop the cover under right side front well, blower is mounted with three screws, disconnect wiring . with fan on workbench loosen two screws on fan motor and rap motor to knock the crud out it, check motor with battery if it works, great--re-install

Dec 01, 2012 | 2002 Buick LeSabre

1 Answer

Heater doesnt work


To troubleshoot this types of problem,click the link below :---
Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html

--------
Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

---------
Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

-----------
No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

------------
Heater blows intermittently and temp gauge goes erratic?

http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

------------
Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

---------
Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

------------
A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem?

http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html

---------

This will help.Thanks.

Mar 27, 2012 | 1994 Volvo 960

1 Answer

My heater is not working except on one side in my 2007 impala driver side it blows warm passenger cold


To troubleshoot this types of problem,click the link below :----http://howtobyme.blogspot.in/2012/02/heater-blows-only-from-defrost.html
--------Go through the procedure to confirm the issue.

------
Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

---------
Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

-----------

No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

------------
Heater blows intermittently and temp gauge goes erratic? http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html------------Heater blows cold? http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
---------Car heater blowing warm, but not hot air? http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html-------- Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

------------
A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem? http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html---------

This will help.Thanks.

Feb 27, 2012 | 2007 Chevrolet Impala LS Sedan New Cars

1 Answer

Heater fan not working


The three most common problems for heater fans are
  1. Burned-out blower motor resistor. This is usually located on the engine side of the firewall. Sometimes one section of the resistor is burned out but others are still good, so the blower only works on the highest speed settings. If you have a burned-out resistor, check the blower bearings to make sure they are not stiff and causing the motor to draw too much current.
  2. The blower is actually working, but either the intake vent is plugged (I've seen vehicles with the heater core completely blocked by dirt, leaves and insects that came in through the vent), or the heater door is stuck closed.
  3. The motor bearings have gone bad (see # 1). This can cause the fuse to blow, although the resistor usually fries first.
I'm not sure how your car's cabin environmental control system is fused. Check any fuse that might apply, such as Vent/AC, HTR, FAN, etc. Generally you can identify the state of a blade-type fuse by inspection without removing it. If you have a blown fuse, check the blower motor before wasting money on a new fuse that will probably blow. Like any fan, it's supposed to turn easily, and there should not be any roughness or side-slop in the bearings.

Nov 14, 2011 | 2004 Renault 181

1 Answer

For a month now my air control knob will only work on the highest setting. Just an hour ago my car quit blowing air all together and my air control know is VERY HARD to turn. I try turning the heat on to...


unplug the heater motor and put a hot wire to it to check the motor if it blows if the wire gets real hot you need to change the heater blower motor. You will probably need to change the heater fan motor resistor. follow the heater fan wire and it will go to the resistor

Dec 10, 2010 | 1999 Chevrolet Suburban

2 Answers

No air coming out of the vents


It sounds like the heater motor may not be operating. When you switch the heater fan on can you hear the motor running? If not then it may have blown the heater fan fuse, check the fuse's and then try it again. If the fuse is ok then it could be a faulty switch or fan motor.

Apr 02, 2010 | 2004 Chevrolet TrailBlazer

3 Answers

HEATER NOT WORKING IN 2001 LEXUS RX 300


you most likely have a bad airmix servo. this happens alot on these. they are expensive to replace too.

Sep 10, 2009 | 2001 Lexus RX 300

1 Answer

Heater fan blowing intermittently or not at all


Most likely it does, if you can hit the motor and it will run. I can't say for sure but you might want to chk. to see if you got a heater blower motor resister. There located (if its got one) around the heater motor and it controls blower speeds, might be worth checking out.

Jan 31, 2009 | 2000 Pontiac Sunfire

1 Answer

Air condition


Check the following fuses:
10 amp GAUGE under the dash, and the 40 amp HEATER under the hood.
If both fuses are good, I suspect that you may either have a bad fan switch or a bad heater fan motor. The switches are rare to fail, I would suspect the heater motor first. Please try this: Turn the key on; turn the fan switch to high. Look under & behind the glovebox, for the bottom of the heater fan motor. Round thing with 3 screws holding it to the heater box. Using a small hammer, or something that you can tap with, tap on the bottom of the heater fan motor. You just may jar the motor enough to make it run. If it comes back on, you may need to replace it at some point in the near future. Worked for me quite a few times. Try that, repost to me what happens. Hope this helps.

Oct 10, 2008 | 2003 Toyota Corolla

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

Related Topics:

15 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

75117 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Randy Ohler

Level 3 Expert

14585 Answers

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

Answer questions

Manuals & User Guides

Loading...