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Why did my power window suddenly stop working?


Power windows are a convenient feature in modern vehicles, but when they suddenly stop working, it can be both frustrating and inconvenient. At Kevin's Autos, with years of experience in car maintenance and repair, we’ve seen this issue countless times. In this article, we’ll explore the common reasons why your power window might fail and what you can do about it.


Common Reasons for Power Window Failure


There are several potential causes for a power window to stop functioning. Understanding these can help you diagnose the issue and determine whether it requires professional repair.



  • Blown Fuse: The power windows in your car are controlled by an electrical circuit. If the fuse for this circuit blows, the windows will stop working. This is often the first thing to check.

  • Faulty Window Motor: The motor that powers the window mechanism can wear out over time. If the motor fails, the window will no longer move up or down.

  • Damaged Window Regulator: The regulator is the mechanism that physically moves the window. If it becomes damaged or jammed, the window may get stuck in place.

  • Wiring Issues: Over time, the wiring that connects the power window system can become frayed or disconnected, leading to a loss of power.

  • Faulty Switch: The switch you use to control the window can also fail. If the switch is broken, the window won’t respond to your commands.


Steps to Diagnose the Problem


If your power window has stopped working, here are some steps you can take to identify the issue:



  • Check Other Windows: Try operating the other windows in your car. If none of them work, it’s likely a blown fuse or a larger electrical issue.

  • Inspect the Fuse: Locate your car’s fuse box and check the fuse for the power windows. If it’s blown, replace it with a new one of the same rating.

  • Listen for Noise: When you press the window switch, listen for any noise from the door. A humming sound might indicate a motor issue, while silence could point to a wiring or switch problem.

  • Test the Switch: If you suspect the switch is faulty, try using the switch on the passenger side (if applicable) to see if the window responds.


When to Seek Professional Help


While some issues, like a blown fuse, can be resolved easily, others may require professional assistance. If you’re unable to diagnose the problem or if the repair involves disassembling the door panel, it’s best to bring your car to a trusted auto repair shop like Kevin’s Autos. Our experienced technicians can quickly identify and fix the issue, ensuring your power windows are back in working order.


Preventing Future Power Window Problems


To minimize the risk of power window failure, consider the following tips:



  • Use the windows regularly to prevent the motor and regulator from seizing up.

  • Avoid slamming doors, as this can damage the window mechanism over time.

  • Keep the window tracks clean and free of debris to ensure smooth operation.

  • Schedule regular maintenance checks to catch potential issues early.


At Kevin’s Autos, we’re here to help with all your car maintenance and repair needs. If your power window has stopped working or you’re experiencing any other car trouble, don’t hesitate to reach out to us. With our expertise and commitment to quality service, we’ll have you back on the road in no time!


Frequently Asked Questions

Does each power window have its own fuse?


With some arrangements a single fuse in the main supply line is used to protect the complete window system so a failure here affects all the windows. Other cars have individual fuses for each window motor so failure will only affect the one window.



Where is the fuse for the power windows located?


This is usually located within the dash of the car by the steering wheel, and there is another under the hood of the car. Once you locate the fuse box that corresponds to the power windows, if the fuse is blown, replace it with the same type of fuse.



How to fix an electric window that won't go up?


If your window won't roll up, check the fuse, try other window switches, and inspect for obstructions before seeking professional help. Can you manually raise a power window? You can manually raise a power window by carefully holding the glass and applying upward pressure while someone operates the window switch.



Why would only one power window not work?


If only one window stops working, the problem could be a bad relay, fuse issue, bad motor, or the power window switch has failed. The most common reason for one window to stop working is the switch, so this should be looked at by a professional mechanic to have your power window switch replaced.



Why did my electric window suddenly stop working?


Blown Fuse or Circuit Issue
Electric windows rely on your vehicle's electrical system, which means a blown fuse or a problem in the wiring can stop them from working entirely. This should be one of the first things you check if your window suddenly stops functioning as it should.



Where is the power window fuse located?


This is usually located within the dash of the car by the steering wheel, and there is another under the hood of the car. Once you locate the fuse box that corresponds to the power windows, if the fuse is blown, replace it with the same type of fuse.



How much does it cost to fix a car window that wont work?


Side Window Repair: Repair or replacement costs typically range from $100 to $400. Power windows or specialized glass can increase the expense. Rear Window Repair: Depending on the damage type and features like defrosters, these costs can range from $200 to $600.



How do I know if my power window fuse is blown?


If the fuse is blown, pushing a window button will do nothing at all: The motor won't groan and the glass won't quiver. If the fuse is good and you can hear the motor, or the glass acts like it wants to move, then you've got some sort of mechanical problem.



What would cause a car window to stop working?


If your car is equipped with electric windows (as most vehicles today are), the malfunction is likely caused by faulty switches, wiring, or a motor gone awry.



How to tell if it's the window motor or switch?


How do you know if it's the window regulator or the motor? If the window glass is going up crooked, sags into the door when it's not being used, or it has fallen, it's a window regulator issue. If it's an issue of movement, then the window motor is the usual suspect.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.