How To Fix A Broken Garage Door Chain

Chain drive garage door openers have a sprocket that is attached at the top of the motor.

How to fix a broken garage door chain.

Before you pull the old one off to begin the garage door repair clamp down the chain to the rail. If the door stalls or. Replace the trolley carriage if the trolley carriage moves but the door doesn t open the culprit is probably a broken trolley carriage. To do this open and close the garage door several times using the chain door opener and observe the performance of your opener.

Before you do any repairs you need to know what is wrong with your door opener chain. The chain got loose and popped off the gear. Sometimes the cable will break if it is a combination chain and cable drive system. Over time the sprocket s teeth can wear and the chain may.

Grasp the chain 1 foot from where it connects to the end of the threaded chain anchor. Thread the nut s facing the door clockwise until it meets the bracket then release the chain. Documenting how i repaired the garage door. Step 1 diagnose the problem.

To repair your broken garage door opener chain here is what you should do. Press down on the chain with your finger. Garage door opener is very strong and seldom does the chain actually break. You can fix your broken door chain regardless of your familiarity with garage door repairs.

In this case the cable can be replaced fixing the problem. How to fix a garage door chain drive sprocket. I am not a professional. Pull the chain toward the garage door and hold it in position.