One of the greatest luxuries in a vehicle is the power windows in today’s models.
With a simple press of a button, you can either open or close your windows, and this is particularly helpful in creating cross ventilation, in making some form of communication with people outside the car, or in cases where one has to make a payment at a toll booth.
However, the convenience that the power windows offer can easily become a source of frustration when the power windows do not work. You should always stay on top of the car’s electrical system service to avoid such problems.
It is essential to know the causes and ways to solve the power window failure so that you can repair the problem and start using your car windows as they are supposed to be.
Understanding Power Window Mechanisms
Power windows are operated by a motor controlled by a switch. Before we delve into causes and solutions, let’s examine how this mechanism works.
Power windows involve a set of electrical parts such as the window switch, motor, regulator, and electrical wiring.
When you push the window switch, the switch sends an electrical signal to the motor to turn the regulator and move the window up or down. This process, which looks rather simple, may be affected by different factors.
Common causes of power window failure
Faulty Window Switch:
What Causes It?
The initial cause of power window malfunction is the window switch, which is actually one of the most frequently used components.
It might stick and hence fail to operate properly due to dirt, moisture, or even wear and tear.
How to Fix?
In some cases, applying electrical contact cleaner to the switch may help solve the problem.
If cleaning the contacts does not work, the switch may have to be replaced. This is often a simple procedure that requires undoing the switch panel and replacing the old switch with the new one.
Burnt-Out Motor:
What Causes It?
The motor is responsible for driving the window mechanism. Over time, motors can burn out due to excessive use, age, or exposure to moisture.
How to Fix?
Replacing a burnt-out motor requires removing the door panel to access the motor and regulator assembly. Once the old motor is removed, a new one can be installed.
This can be a bit more complex and might require professional assistance if you are not comfortable with car repairs.
Regulator Issues:
What Causes It?
The regulator is the mechanism that moves the window up and down. It can wear out or become misaligned, causing the window to stick or not move at all.
How to Fix?
If the regulator is damaged, it will need to be replaced. This process involves removing the door panel and sometimes the glass to install the new regulator.
Proper alignment is crucial, so it might be best to have a mechanic handle this repair.
Wiring Problems:
What Causes It?
Faulty or damaged wiring can interrupt the electrical signal needed to operate the window. This can be due to wear and tear, corrosion, or accidental damage.
How to Fix?
Diagnosing wiring issues involves checking the continuity of the wires and ensuring there are no breaks or corrosion.
Repairing or replacing damaged wires can restore the electrical connection. This job requires a multimeter and some knowledge of car electrical systems.
Blown Fuse
What Causes It?
Power windows are protected by a fuse, which can blow if there’s an electrical surge or short circuit.
How to Fix?
Checking the fuse box and replacing any blown fuses can be a quick fix. Always replace a fuse with one of the same amperage to avoid further electrical issues.
Weather-Related Problems:
What Causes It?
Extreme temperatures and moisture can affect the functioning of power windows. Cold weather can cause components to freeze, while moisture can lead to rust and electrical issues.
How to Fix?
Keeping your car in a garage or using weatherproofing measures can prevent weather-related problems. If components freeze or rust, they may need to be replaced.
Preventative Maintenance Tips
Even though power window failure can be quite irritating, it is important to note that many of the problems can be prevented by conducting routine maintenance checks.
Regular Cleaning:
Ensure that the window switches and areas around them are clean because dirt and moisture can lead to electrical problems.
Lubrication:
Lubricating the window tracks and regulator from time to time is recommended to avoid straining the surface.
Weather Protection:
If the weather is too hot or cold, use weatherstripping or park the car in a sheltered area to protect the components.
Inspect Wiring:
Wiring should be checked periodically for signs of wear or corrosion especially if the area of location is highly humid or exposed to salt water.
When to Seek Professional Help?
Although some power window problems can be solved with simple tools and some mechanic attitude, some of them may need the help of an expert.
However, if you are not confident about dealing with the electrical parts or if the problem still remains unresolved after these simple tests, it is advisable to visit Erics Car Care.
We have all the necessary equipment and knowledge to identify and fix various problems, including those related to power windows installation and their correct functioning and safety. Contact us today at 713-352-8058.