Q: How to remove blower motor fuse or relay or to shut it off completely?

asked by on July 05, 2016

My car A/C is blowing hard even with the car turned off and keys out of ignition. It killed my battery. Right now I can't afford to replace it so how can I pull out the fuse or power to it?? Where is it located in a 2003 buick century? I've found the fuse box but there are listings for things like "high blower" and "low blower" and nothing specifically saying "blower motor" or anything like that.
My car has an automatic transmission.

AC is not working Inspection $96.46 - $106.46 Get a Quote

Both the fuses you mentioned are for the blower motor. The most likely problem is the blower motor relay built into the blower-motor-resistor has stuck on. The high-blower fuse has power all the time. The low-blower fuse only has power with the key on. So pull the high-blower fuse. You still may be able to control the blower motor on speeds 1, 2, or 3, but it may just not work at all. The part that will most likely need to be replaced is the blower-motor-resistor. I recommend having the AC inspected by a certified technician to verify the faulty component. From there, they can move forward with the correct repairs.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Leakage near the radiator fill cap and the AC/Heater doesn't work

It sounds like you have 4 issues: Coolant leak Possible issue with the water pump An unexplained, but transitory noise HVAC faults. The coolant leak is the most important one to fix first because a coolant leak can...

Air conditioning doesn't work - 1988 Jeep Grand Wagoneer

Check the fuse for the heater/AC blower motor. If the fuse is good, then either the blower motor resistor or the blower motor itself is suspect. The blower motor resistor provides for multiple speeds for the blower motor. A professional...

Car has a grinding sound when trying to start, but will not start.

This symptom sounds to me like a broken starter gear or a broken flywheel or flex plate. In order to determine which one of the two is at fault the starter will need to be removed to inspect both of...

oil pan threads are damaged

I would use a fluid extractor to drain the fluid out through the dip stick hole and then replace the oil filter and refill the oil. By doing it this way you can change the oil without removing the oil...

Liking oil from right side tire what is it? And how can be fix?

If the leak is nearest the wheel/tire assembly, you are probably seeing CV axle grease, although other possibilities include transmission fluid or engine oil. The exact circumstances can be determined by a certified mechanic if you request a leak inspection...

Engine making weird noises.

Seeking a mechanics advice when car issues come up is always a good idea. Especially when it comes to engine noises. Since I don't know what kind of noise you are hearing, I will try to explain what is important...

Car overheating after new water pump

Hello. It sounds like you may have a couple of issues going on with your vehicle. The overheating is the first concern. If it is randomly overheating then a block test needs to be done. This would indicate a leak...

My 2003 dodge neon suddely died while driving...Everything works except that it wont start

Whether or not your engine is an "interference engine" depends on which one your car has. The Neon was available with both a 2.0 ltr. and 2.4 ltr. Whether in SOHC or DOHC (single-overhead-cam or double-overhead-cam) form, the 2.0 ltr....

Air conditioner blows warm air

There are many reasons for poor AC performance, from low refrigerant, to a failed compressor. I suggest you have an AC performance test performed on your vehicle to determine the cause. This test involves hooking up gauges to the A/C...

Related articles

A Buyer’s Guide to the 2011 Buick Lucerne
2011 2011 marked the final year of production for the Buick Lucerne, a venerable full-sized sedan that offers ample room in the interior. The car was noted for the significant amount of interior space and trunk space offered, although it...
How Much Does the AC Affect Fuel Mileage
Your car’s air conditioner is an important accessory – it helps keep you and your passengers comfortable and...
What Sensors in the AC Tell the Car If the System Is Working or Not?
The The average car today contains a bewildering range of sensors that feed information to various computers to monitor everything from air intake to emissions and engine timing. Your car’s air conditioning system also contains a couple of sensors that...