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What Are the Reasons for Power Window Malfunction?

2 Answers

VonHector

07/25/25 9:43pm

Power window malfunction can be caused by: 1. Aging or deformed rubber seals; 2. Improperly fitted rubber seals; 3. Dirty or obstructed window tracks; 4. Low battery voltage; 5. Motor failure; 6. Loose mounting screws on the regulator. Solutions for power window malfunction include: 1. Replacing the rubber seals or applying talcum powder for lubrication; 2. Adjusting the shape of the seals with scissors; 3. Cleaning the window tracks and applying grease; 4. Recharging the battery; 5. Repairing or replacing the motor; 6. Checking and tightening the screws. The power window regulator is the mechanism responsible for raising and lowering car window glass, primarily categorized into electric and manual types.

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TeaganFitz

08/11/25 10:22pm

I drive frequently and have found that the most common issue with power windows not working is poor switch contact. Think about it - after several years of use, the switch can wear out, causing the signal not to reach the window regulator when pressing the button, especially during rainy days when moisture can easily cause short circuits. Another common problem is aging of the window motor. If the gears or coils inside the motor are damaged, it won't have enough power to move the glass. I encountered this last year - the motor was stuck, humming but not moving, and it was only fixed after replacing it with a new one. Rusted or broken cables also frequently occur, especially inside the door where high humidity can cause corrosion. Clogged window tracks can also be a factor, such as when dust or leaves block the track, causing the glass to stick. In such cases, spraying some silicone-based lubricant and cleaning it can help. Blown fuses are also to blame - excessive current can burn out the fuse, cutting off the power supply. I recommend troubleshooting yourself first, such as testing the switch sound or checking the fuse box. If that doesn't work, promptly visit a repair shop - safety first.

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