Why can the car window roll up but not down?

[OscarMarie]

Possible reasons for the malfunction of the Sagitar window glass button and the window not rolling down are as follows: 1. Lack of lubrication: The main reason for the electric window switch not operating smoothly is often the depletion of lubricant inside the door's lift mechanism. The inner cover should be removed and lubricant added. 2. Switch failure: If the glass cannot move at all, it may be due to a switch failure. If the switch is faulty, it can only be replaced. If the switch's operation deteriorates and the window cannot open smoothly, the likelihood of a switch failure is high. 3. Fuse damage: If electronic devices are not functioning, checking the fuse is a general rule. Carefully inspect whether the fuse for the electric window is damaged.