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.

How to fix a broken garage door chain.

Replace the trolley carriage if the trolley carriage moves but the door doesn t open the culprit is probably a broken trolley carriage. 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.

Step 1 diagnose the problem. Documenting how i repaired the garage door. To repair your broken garage door opener chain here is what you should do. Pull the chain toward the garage door and hold it in position.

The chain got loose and popped off the gear. Thread the nut s facing the door clockwise until it meets the bracket then release the chain. This requires the activation of the door s emergency release feature and the manipulation of the tension bolt on both the existing and replacement garage door chains. Before you do any repairs you need to know what is wrong with your door opener chain.

Sometimes the cable will break if it is a combination chain and cable drive system. Press down on the chain with your finger. To do this open and close the garage door several times using the chain door opener and observe the performance of your opener. You can fix your broken door chain regardless of your familiarity with garage door repairs.

Garage door opener is very strong and seldom does the chain actually break. You should have 1 2 inch of play in the chain. Garage door doesn t open fix. Chain drive garage door openers have a sprocket that is attached at the top of the motor.