Four Common Failure Reasons and Solutions for Rolling Doors

Ⅰ. The motor of the automatic rolling door shakes or its noise is too loud

1. Reasons: The occurrence of this situation should be the brake disc of the rolling door is not fastened, broken, or unbalanced; the bearing is Loss of oil or failure; the sound of motor current or vibration; the gear teeth do not match properly, badly worn or loss of oil and so on.

2. The solutions: the solution to the motor of the shake of the automatic rolling door or its noise being too loud is to change the brake disc of the rolling door, readjust the balance; replace the bearing; Check the motor of the rolling door. If the motor is broken, you should change it; Repair the motor shaft output gear, lubrication, or replacement.

Ⅱ. The speed of the automatic rolling door motor is slow or the motor does not move

1. Reasons: The occurrence of this situation should be the motor burned; circuit breakers; the stop button is not reset; excessive load or limit switch action and so on.

2. The solution: If the roll up door appears above these conditions, the solutions are to replace the burned motor; check the line and connect it; repeat a few times or replace the button; check whether the machine is stuck, if it is, remove obstacles; Push the limit switch slider away from the microswitch contact, and then adjust the position of the switch.

Ⅲ. The bracelet of the rolling door cannot pull:

1. Reasons: The reason you can not pull the rolling door bracelet should be the chain holder is jammed, the pawl can't get out of the ratchet, or the cross slot is plugged by the ring chain.

2.The solution:  If the door appears above these conditions, the solution is to lubricate the pin or replace it; adjust the relative position of the pressure chain frame to the pawl, and straighten out the Ring chain of the industrial roll-up doors.

Ⅳ．The rolling door is out of control

1. Reasons: There are many reasons for the failure of rolling door control. For example, the up and down buttons are stuck; the relay contact is stuck; the loosening of the plate screws displaces the plate so that the slider or nut cannot be moved with the rotation of the screw; sliding block set screw loose; Travel micro switch is failure or deformation; limiter transmission gear damage and so on.

2. The solutions: This kind of industrial rolling door control failure will be caused by a variety of reasons. The corresponding solution is to replace the button, replace the relay, tighten the slider screw and reset the rest plate and replace the limiter transmission gear and so on.