What are the reasons for car door windows not being able to roll up or down?

[VonOmar]

Car door windows not being able to roll up or down is due to damage to the window regulator or related components. Here is relevant information about window regulators: Three scenarios of car door windows not being able to roll up or down: First scenario: Operating the window regulator switch results in no movement of the window regulator. Second scenario: Operating the window regulator switch elicits a response from the regulator, but the window cannot roll up or down. Third scenario: Operating the window regulator switch causes the regulator to move, but the window stops halfway or automatically descends back to its original position. Solutions for car door windows not being able to roll up or down: Check if the window regulator switch is damaged or if there is a power circuit break. If the issue is confirmed to be with the regulator itself, replacing the regulator can solve the problem. If the regulator motor is overloaded and lacks sufficient power, replacing the regulator motor or the entire assembly can resolve the issue.