How To Replace Belt On Liftmaster Garage Door Opener

Install the new belt.

How to replace belt on liftmaster garage door opener.

Explore liftmaster garage door opener belt kits. Unplug the garage door opener. Take the garage door opener down. We have rail assemblies motors and replacement circuit boards for your model 3500 liftmaster belt drive garage door opener.

If you don t know the part number use our illustrated guide to match your part to the picture on the schematic. Common reasons your garage door opener may not be working properly. The garage door s path may be blocked. Constant rubbing of the rail beam along the side of the trolley will eventually wear away one side of the trolley.

Whether you have a belt drive chain drive or wall mount model find helpful resources manuals videos and more to help you diagnose and fix the problem. The batteries in the remote control need to be replaced. Find replacement belts trolley kits tensioners sprockets pulley brackets idlers caps covers and more. Use a step ladder to access the garage door opener s power cord and motor unit.

The safety sensors are out of alignment. Reinstall the garage door opener. This video from sears partsdirect shows how to replace the belt on a belt drive garage door opener. The springs are broken.

Find a replacement garage door opener belt for a 7 foot tall garage door or a garage door that is 8 feet or 10 feet high. Located along the rail the belt connects to the trolley. Liftmaster garage door openers troubleshooting support get the liftmaster garage door support you need from chamberlain group. It s easy to find liftmaster 3500 garage door opener replacement parts online at garage door supply company.

The door needs lubrication. The liftmaster 41b3869 1 garage door opener belt drive trolley sold by north shore commercial door replaces the whole opener and is easy to install.