There are a number of reasons why the motor will run but the chain doesn t move.
Chain driven garage door problem.
Out of the three different garage door openers on the market today the screw drive garage door opener is in the middle of the pack.
If your chain drive garage door opener s led light flashes 5 times and the door moves just a few inches at a time the rpm sensor might be the problem.
If the rail system is not perfectly level the chain can eventually bind up in the process of working the door.
The repair guide and video show how to replace a garage door opener rpm sensor in 6 steps.
Motor unit assembly parts rail assembly parts and installation parts for liftmaster chain drive garage door opener models 1355 1355m 1356 1356m liftmaster 1345 1345m 1346 1346m repair parts list and diagrams.
Most garage doors have an emergency.
How to fix a chain drive garage door when it won t open.
If your chain drive garage door opener s led light flashes 5 times and the door moves just a few inches at a time the rpm sensor might be the problem.
Also the garage door slides along two door rails on either side of the garage.
Being a little more expensive than a chain drive and less expensive than the belt drive this type of garage door opener is fairly common among people who are looking for a good quality product without a large expense.
Place a level on these and the rail to check to see if they are level.
Watch this video and see the professional at town country door llc demonstrates the.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
Having an automatic door opener in your garage is a great convenience but you have to give the opener and all its parts regular.
The repair guide and video show how to replace a garage door opener rpm sensor in 6 steps.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.