Liftmaster Chain Drive Not Moving

As of today 2017 11 08 there were two answers.

Liftmaster chain drive not moving.

However the chain has completely stopped moving and by extension so has the door. This causes the motor to run for an extensive period of time before it seems to timeout and give up. There are a number of possible causes. This is frustrating especially if you re trying to get your car out of the garage.

This question is from quora. My old 15 years liftmaster chain garage door opener is making noise at motor driver gear part when the chain is going up with or without door engaged. Motor starts but drive doesn t move. Press the remote or the wall mounted start switch listen to the motor and watch the movement of the chain.

I disconnected chain and tested without chain enabled read more. Liftmaster 3275 3275 267 repair parts list and diagrams. It is best to troubleshoot the issue to determine the appropriate solution. One garage door malfunction that is very frustrating is when it will not open.

I ve not worked on garage doors before but i have a degree in computer electrical engineering. If the cord has accidentally or purposely been pulled the automatic door opener will not work until the chain is re engaged. Both were something along the lines of either there is no power or the gears are destroyed. If the motor hums but the chain doesn t move that indicates a problem with the motor.

Sometimes homeowners will find that their automatic garage door opener runs but the door doesn t move. The motor will run but will not move the chain. This process varies by manufacturer and model but many openers can be re engaged by pulling the emergency cord a second time. Motor unit assembly parts rail assembly parts and installation parts for liftmaster chain drive garage door opener models 3245 3245m 3255 3255m 3255 2m.

They can hear the motor going but the door itself is not opening. What could be causing my garage door opener chain to not move. 1 check to make sure the opener is getting power. Actually there are many more answers.

I put a lot of wd40 into drive gear and chain read more. I own a liftmaster professional 1 3 hp chain drive garag door opener. Home owners say that they can hear the motor running but the opener simply will not operate the door. The chain and door connector assembly haven t budged since.