Firstly, check the fuse, its probably under your steering wheel, if you cant find the right one, it may be in the fusebox under the bonnet. use a multimeter on it with the resistance setting on, it should show a different value when touching the fuse's terminals and not. if you dont fancy checking the fuse, then just swap the one from the working window and see if it fixes the problem.
If that doesnt work.......
Secondly remove the switch and check that it works, again by using the multimeter on resistance. Just put each lead of the multimeter on a terminal on the switch and press the switch on and off. The resistance reading should change ((showing you that it is switching)). Again if you dont want to use a multimeter, then swap the switch from the working window and see if it fixes the problem.
Thirdly you can check the wires that run to the switch for voltage. It will be DC voltage of 12volts or less. there will more than likely be 4 wires, +up +down earth and -
Fourthy check the motor terminals are receiving voltage when the switch is pressed, if it is and the motor is not moving, then you have a dead motor.
Its cheaper to replace just the motor than the entire rig, as the scissor lifts are unlikely to be at fault anyway. You can of course swap the motors from the working window to confirm it is the motor that is faulty.
If that doesnt work.......
Secondly remove the switch and check that it works, again by using the multimeter on resistance. Just put each lead of the multimeter on a terminal on the switch and press the switch on and off. The resistance reading should change ((showing you that it is switching)). Again if you dont want to use a multimeter, then swap the switch from the working window and see if it fixes the problem.
Thirdly you can check the wires that run to the switch for voltage. It will be DC voltage of 12volts or less. there will more than likely be 4 wires, +up +down earth and -
Fourthy check the motor terminals are receiving voltage when the switch is pressed, if it is and the motor is not moving, then you have a dead motor.
Its cheaper to replace just the motor than the entire rig, as the scissor lifts are unlikely to be at fault anyway. You can of course swap the motors from the working window to confirm it is the motor that is faulty.
