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Blower motor blowning fuses as soon as you replace them.

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New blower motor regulator-if this doesnt fix,new blower motor

Posted on Aug 10, 2008


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2 Answers

Blown fuse 7

I would trace the fault first. Could be a shorted chafed wire. Could be the motor, not very likely though, they usually go open circuit, unless you mean the compressor in which case it could be jammed.

Mar 03, 2017 | AC Cars & Trucks

2 Answers

No elctirc to replaced heater blower

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

Dec 30, 2013 | Cars & Trucks

1 Answer

The blower for my heater isn't working. How do I fix it?

Yes, there is a fuse. NO, there is no way possible for the fuse to be the CAUSE of your blower not working. Yes, the fuse may be blown, but fuses do not just go around blowing themselves out to make your day miserable. If the fuse is blown, there is a reason for it. Fuses do not cause elecrical circuit failures....electrical circuit failures cause blown fuses.

Nobody can tell you what is causing your blower to not work without first DIAGNOSING your blower motor circuit. There are probably some people that would tell you to just replace the blower motor. However, I would not recommend that because "diagnosis by parts replacement" can be VERY COSTLY. You might get lucky and it will be the blower motor, then maybe not. If not, then you will be out the cost of the blower motor and still have no air.

If you check for power and ground at the blower motor electrical connector and all is well, then it is the blower motor. If you check for power and ground at the blower motor connector and either power or ground is missing, then you will have to trace the rest of the circuits to find out where the failure is.

Please also review the following articles:
Where is the Fuse?

What Else Could Be Wrong?

Nov 13, 2011 | 1990 Honda Accord

2 Answers

Heat or air doesnot blow

Check for power and ground at the blower motor electrical connector. If both power and ground are present, replace the blower motor. If power is not present, you may have a blown fuse, in which case your motor is very likely to be shorted and therefore, the cause of the blown fuse. If there is power but no ground, The most likely cause would be a burned blower motor resistor. (Ground is supplied through the blower control switch to the resistor, then to the blower.)

Feb 05, 2011 | 2001 Pontiac Grand Am SE

1 Answer

Heater fan works for a while then cuts off till it cools down

What can go wrong with a blower motor?
There are several things that may cause your blower motor to stop working. The simplest cause would be a blown fuse. If you replace the fuse and it quickly blows again, then you probably have an electrical short. Disconnected wires on the exterior of the blower motor can also cause it stop working, and if your blower motor gets dirty, it can get clogged or muddy which keeps the fan blades from spinning.

How do I test my blower motor?
When you are troubleshooting your blower motor, it is best to start by running the air conditioning or the heater to see if you can hear the sound of the fan. If you can hear the fan, it could be clogged or corroded with dirt. If you do not hear the fan, then you may have a bad resistor, blown fuse, or a loose wire. Next, you should replace any blown fuses in your car's fuse panel and try to start the blower motor again. If another fuse blows right away, you have an electrical short. If it doesn't blow out and the motor is still silent, then something else is wrong. In the case where the fuse lasts for a little while as the fan spins but then the fuse blows again, that usually means you need to replace the brushes on the motor. Finally, you can pull the motor out and visually inspect it for loose wires. If you don't see any and still want to test, try hooking it up to the battery to see if the motor will start. If all these tests still find you with a dead blower motor, it's definitely time to replace it.

How do I replace it?
Usually located under your vehicle's instrument panel, the blower motor can be removed and replaced. You'll need to disconnect the blower motor connector and remove the retaining screws holding it into place. Detach the fan retainer clip from the motor shaft that's located in the center of the blower wheel. You may need to save that piece if you are not replacing the whole motor. Inspect your new motor to ensure nothing is broken and the blades can properly spin. Re-attach the fan retainer clip, the retaining screws, and the connector so you can test your new blower motor out.

Dec 13, 2010 | 2001 Chevrolet Silverado 1500

2 Answers

Blower not working

Either the blower motor itself has gone bad or you have a fuse blown. Could also be a bad connection at the blower motor. Check all the fuses and then the wires at the blower with a test light. You can also use two wires and run them as a straight wire from the battery to the blower motor, one as a hot and the other as a ground, to ensure the blower is good. Also check your switch on the dash.

Jun 25, 2010 | 2002 Dodge Dakota Club Cab

2 Answers

Ford fusion 2007, blown blower fuse, replaced fuse, works at highest speed only (highest of 4) the other three setings don't work.

hte blower resistor is shot, near the blower motor, have the blower motor checked my guess is that it requiring too much power to run, hence the blown fuse

May 06, 2010 | 2006 Ford Fusion

1 Answer

01 grand prix gt blower issues

WEll, the next step is to find where the short is. Disconnect the fan wiring, and replace the fuse again, if it blows, the fault is between the fuse and the fan, but I expect fuse will not blow.

Most likely a fan problem, if the above test does not blow fuse, apply auxillary power to the fan and see if it goes, I expect probably not, but will spark.... if this happens, you would be looking at blower motor replacement.

Sep 21, 2009 | Pontiac Grand Prix Cars & Trucks

1 Answer

The a/c for my car was working on the third setting. last week it stopped working completely. I checked the fuse and it was blown. I replaced it and it blew as soon as I turned on the a/c. I need help with...

A/C/Heater blower motor may have an internal short or the blower motor resistor may be going bad. replace the motor and see if it fixes the problem, if it doesnt then a more in depth search may be in order by a repair shop.

Jul 06, 2009 | 1998 Oldsmobile Intrigue

1 Answer

Air/heater not blowing air at all

Starting with the basics, check the fuse for the blower motor. If it's blown and you replace it and all is fine then you can write it off as a fluke. If it blows right away or soon after you've got a short or something somewhere. If the fuse is ok then the problem is most likely the blower motor resistor or the blower itself. There is a chance it could be a module, wiring, etc aso...
Good luck

Sep 16, 2008 | 2003 Hyundai Santa Fe

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