Garage Door Chain Keeps Loosening

Be sure to check your.

Garage door chain keeps loosening.

The hardware of your door like the rollers hinges nuts bolts and chain can become loose. If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch. Locate the adjustment bolt. Climb up on a stepladder and take a look at the trolley assembly.

As soon as the garage door closed it would automatically open back up. Adjust it tight enough so that the center of the chain sags about 1 2 down from parallel with the track graphic below right. In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor. Ensure that the unit is plugged in the door isn t locked and if you are using a remote.

Make basic checks first. Do not over tighten the chain. Before you start working you need to take some safety. Disconnect the power supply and disengage the opener.

Disengage the door from the trolley by pulling the emergency cord if none of the basic checks reveals a simple. A few weeks ago the chain was hanging loose about 2 inches below the rail and was rubbing on the rail. How to fix a chain drive garage door when it won t open 1. If you find that your garage door opener chain has become loose with time you may want to tighten it up in order to remove some of that slack.

You loosen the locking inner nut and turn the outer nut clockwise to adjust the excess slack from the chain. This will cause premature wear on the chain rollers. Here is the problem. You may find that a loose garage door opener chain has less power to open and close your garage door or you may find that it is just hitting the door as it moves it and creating an annoying sound.