Over time though this slack can increase or the gear and sprocket assembly can wear and the chain may pop off the sprockets.
How to fix automatic 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.
Before you pull the old one off to begin the garage door repair clamp down the chain to the rail.
Sometimes the cable will break if it is a combination chain and cable drive system.
You can put the chain back on your automatic garage door opener using a simple adjustment mechanism.
In this case the cable can be replaced fixing the problem.
A loose garage door opener chain makes loud slapping sounds and causes jerky door movements that smack the rollers against the track.
So start by tightening the chain find the procedure in your owner s manual.
If you ve checked for obstructions and made sure the lock button wasn t switched to the on position and still your garage door opener won t open all the way check to see if your garage door is balanced properly.
The chain got loose and popped off the gear.
If the door stalls or.
Step 1 diagnose the problem.
To check the balance pull the.
To repair your broken garage door opener chain here is what you should do.
Chain driven garage door openers should have some slack in the chain for optimal performance.
Having an automatic door opener in your garage is a great convenience but you have to give the opener and all its parts regular.
How to fix a chain drive garage door when it won t open.
If your garage door is not balanced right it won t go up or down all the way.
I am not a professional.
Once you ve replaced the worn door components check the garage door opener chain.
Documenting how i repaired the garage door.
Before you do any repairs you need to know what is wrong with your door opener chain.