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When Lights "Dim" while operating Windows

Usually this is an indication of the power window motor [s] drawing more current [Amps] than normal, which causes an inordinate drop in voltage. There could be several causes for excess current draw, but I have found that with power windows, the cause is usually too much "drag" on the moving window.

Usually this drag is caused by the window channel guides being out of proper alignment/adjustment, and pinching the window as it tries to move.

Some other causes could include:

  • Wear and drag within the motor,
  • Wear and drag caused by wear or misalignment in the lift gearbox, or lifting mechanism.
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15y ago

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