The safety sensors are out of alignment.
Liftmaster garage door chain broke.
The track is not aligned properly.
In this case the cable can be replaced fixing the problem.
Explore more replacement parts below.
From logic boards to chain kits to safety reversing sensors find the right liftmaster replacement part to help you with any garage door opener repair project.
The door needs lubrication.
If you liked the video don t forget to leave a thumbs up.
Sometimes the cable will break if it is a combination chain and cable drive system.
Garage door opener is very strong and seldom does the chain actually break.
This is the part that connects the motor to the chain or belt.
Thread the nut s facing the door clockwise until it meets the bracket then release the chain.
We design and engineer residential garage door openers commercial door operators and gate entry systems.
I bought this to replace the identical broken one on my brand new garage door opener.
The garage door s path may be blocked.
One of the most common repairs on a liftmaster garage door opener is a broken gear sprocket.
041c4220a is a complete chain drive gear and sprocket replacement kit.
This gear and sprocket assembly is compatible with various chain drive garage door openers.
You should have 1 2 inch of play in the chain.
Helical gear and top hat assembly worm gear wear bushings grease and hardware needed to replace the chain drive gears.
An instructional video on removing or replacing the chain on a garage door opener.
After several years the garage door springs become weaker causing more stress on this particular part causing it to fail and wear out.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.
The springs are broken.
Chamberlain group cgi the corporate parent company to liftmaster chamberlain merlin and grifco is a global leader in access solutions and products.
Press down on the chain with your finger.
Pull the chain toward the garage door and hold it in position.
Contact a liftmaster dealer to diagnose the problem and provide service.
We design and engineer residential garage door openers commercial door operators and gate entry systems.