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Heat and A/C unit will not blow air. Either the motor for the blower is burnt or a possible fuse is burnt out. How do I fix it?

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  • Cars & Trucks Master
  • 5,522 Answers

Can't tell what you are driving, but Ford made products use a Blower Resistor that can cause problems. Sometimes hitting the part with a broom handle will fix it for years but keep the broom handle in trunk for the next time.

Part is located by following wires on blower motor across Firewall to First or second device on that wire loom. The part has 1 electric plug in and 2 fasteners holding it in place. May be mounted in ductwork or metal Firewall. 90% of the part is hidden inside airflow cavity to work.

Entire part is about the size of a pack of cigarettes and usually made of black plastic. Very expensive for its size and no guarantee new one will not fail after Warranty period.

Now if you have a Digital dash, not just Temperature numbers, some have a self-diagnostic loop which will Diagnose problems. There are sequences to activate it and Code lists to explain the answers but the information is difficult to find outside the Dealership.

Please rate my info.

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Blower will not blow air from front blower.

No, it's the blower motor resistor
Cost $13.99 at AutoZone
Fits behind the glove box
Two plugs, two screws and you're done!

Posted on Nov 23, 2010

tripletauto
  • 1450 Answers

SOURCE: Blower not blowing

can you hear the fan working on all speeds?

Posted on Sep 22, 2008

  • 2 Answers

SOURCE: new climate control unit but when on blower not working for heat or ac

I'm assuming the problem is the blower motor isn't coming on or working. 1st, check the fuse. 2nd, remove the glove box or pull the 2 tabs that act like stops when it's open ( the glove box will open out further) and you'll see the power plug connector for the blower unit. Turn on the blower through the climate control (heat, A/C, or whatever) and wiggle the connector to see if the blower turns on. If starts working, then an easy solution is pull the connector off and gently press the prongs together or inward. Then carefully reconnect with damaging the prongs. This worked for 96 Mark VIII due to the fact the prongs were not "seating" correctly in the female connector. It's been about 2 years since I did this and the connection is still good. If wiggling the plug doesn't work, pull the plug, turn on the climate control (heat, A/C), and check for voltage to the plug. That's about all I can help with.

Posted on May 28, 2009

  • 9 Answers

SOURCE: air and heat not blowing air through vents

Either Your fan switch is burned out or you blower motor is no good, your blower motor is on the passenger side under the dash. Before you replace any parts you need to check your fuses and relays under your hood and in the car. Usually if your fan switch goes bad you will still get some air blowing thru the vents, so my guess would be blower motor, If its not a blown fuse or relay.

Posted on May 28, 2009

jigsaw_9077
  • 308 Answers

SOURCE: 1998 BMW 328i heater/AC blower is not running

You have clean the blower unit , may be its dirty then . and then check the blower resistor unit for malfunction.

Posted on Aug 04, 2009

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1 Answer

My heat is not working. It's not blowing out air. Nor is the defrost or a working it was making a ticking noise before it went out


Check your fuse for the blower motor and the wires going up to it. Also check connector to blower motor to make sure its not burnt. If all are ok replace blower motor

Jan 06, 2016 | 2008 Audi Q7 3.6

1 Answer

Heat NOT blowing out ANY air consistently!!


Can be blower motor easy to test --remove it look for imbalance by spinning to check bearing smoothness / freeplay . Hook up ground then use inline fuse connector with lower than fuse panel ## number of fuse -- find power Eg .car battery -- be sure to ground then connect Fan to visually see it spin .. NOW if you have any type of electronic dash mounted controls for heat / air conditioning - most likely electrical issue is in it . you said blower motor does sometimes function - Test wires that plug in to it for power / find groung then probe by test light when in heat mode = switch to air cond mode if fan functions then problem in controls on dash .. if no test light reaction search wires for short or damage .. As FUNNY as it sounds I have pulled mouse nest out of GM heater fans - They access parked vehicle by drain hole inner fender well it drains water from wiper blade / heater vent area .

Nov 13, 2014 | 1999 Chevrolet Blazer

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No elctirc to replaced heater blower


blown fuse..burnt up resistor block..bad ground..

Dec 30, 2013 | Cars & Trucks

1 Answer

No heat blowing from vents


probably your blower motor resistor has fried, not an expensive fix ath a garage

Dec 08, 2013 | Chevrolet Impala Cars & Trucks

1 Answer

Heat or A/C does not work in my car?


Either you have a blower motor FUSE that has gone bad "typically the problem" or you have a burned out blower motor. Usually the cause of a blown or burnt motor if not a Fuse, Is caused by the vented air from outside letting debris like sticks or leaves,acorns etc. enter the fan box. If ANY of the mentioned items get caught in the "blower box" then it will usually blow the fuse and or burn up the blower motor. Start in your fuse box and look for a burnt fuse and replace with same size fuse. If it blows the new fuse quickly then you have debris in "Blower box" that will have to be removed before adding yet another fuse. I have had the same problem and I found a bunch of leaves in my "Blower Box". I removed the leaves and replaced the burned out fuse. And I have had no more problems with the blower motor blowing air.

Nov 09, 2013 | 2004 Ford Taurus

1 Answer

Circuit unit behind the ac controls


sounds like your blower motor has stopped working check for power going to the blower system if you have power the blower is probably bad the concern is the lack of a fuse blowing or a breaker not cycling you may have a harness problem sometimes a low grade short will heat up wires then melt them together causing a multisystem failure even though a fuse or breaker didn't blow check you harness

Aug 09, 2012 | Dodge Avenger Cars & Trucks

1 Answer

The blower fan on the air/heat unit quit blowing


List of possibilities:
blower motor
resistors
relay
on/off switch.

This is not the item to attempt to fix by yourself if your a senior citizen. Because of the location of these items this is a back breaking job.
Unless the shop you go to attends to its customers while wearing ski masks take the vehicle to them . This is not a fixed income reaper. Good luck.

May 21, 2010 | 2002 Lincoln Town Car

1 Answer

Front air conditioner does not blow at all on any


Well, either you have a blown fuse. (Check your fuse panel)
Or
Your resistor/relay has burned out. (It will be on the passenger side under the dash and will be wired and connected between the controls and the blower motor which should look burnt if bad)
Or
Your blower motor has burned out which can be tested by applying 12 volts directly to it.

The resistor will be around $25 and the blower motor will be much more. You can get everything from a Ford Dealer or an auto parts store once you figure out what is bad.

Jun 28, 2009 | 2001 Ford Expedition

1 Answer

A/C unit fan is nolonger blowing air.


Either a bad blower motor or blower motor resistor. If the air is coming from the defroster only, check for a disconnected or broken vacuum line under the hood by the passenger firewall.

Nov 19, 2008 | 2004 Jeep Grand Cherokee

5 Answers

Blower not blowing


can you hear the fan working on all speeds?

Sep 22, 2008 | 2002 Jeep Grand Cherokee

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