The reason why the rolling shutter door of garage has a large dynamic opening is that the remote control of garage door selects the triple system (3-phase) for the purpose of transmission. They are equipped with printed circuit boards based on crystal or submerged arc welding to meet severe EMC requirements. The remote controls (types 94335e, 94330e and 94333e) are equipped with two 3V lithium batteries (CR2032). The battery life is five years. When the remote control is activated, it generates a pulsating radio signal.
When the receiver in the door opener picks up the signal, it compares the signal with the stored code. The receiver verifies the code twice. Assuming it bears the code, a door opener is recommended. The receiver decoder takes care of 0.3 seconds - from the recommended remote control to the garage door.
Analysis of the reason for the dynamic opening of electric garage door
1. The fixing screws of hinges and tracks are loose. Check the screws that fix the hinge and guide rail to see if they are loose. If they are loose, tighten them with a vise
2. When the garage door is installed, it is not kept in a horizontal position. One side of the door panel is close to the track, and the other side is far away from the guide rail. As a result, the collision force between the hinge on the door panel and the guide rail increases, and then squeaking noise occurs. The solution is to adjust the guide rails at both ends to ensure that the door plate is in the middle of the guide rails at both ends.
3. All the hinges on the side of the door panel shall be coated with lubricating oil, especially the surrounding surface corresponding to the hinge and track, and the inside of the hinge hole