I have a Overhead Legacy garage door opener. The door will not close. It starts down an inch or two then goes back up. The green sensor light is on and solid. The red light is is off. Power (12v) is getting to both red and green sensors. Any ideas? Thanks.

All questions need full 'make model (what it is) please as first 3 words.

Garage door? We have a Category for that.

Plus what? "and it likes about inch closing all the way"??

Legacy (496CD/B and 696CD/B) - Overhead Door Parts

Overhead Door Parts Online https://overheaddoorpartsonline.com > legacy-496cd-...

This circuit board has been redesigned and will be substituted with part #36190T Overhead Door Model: 496CD/B, 696CD/B Genie Model: PMX300IC/B,... MSRP: Was ...

phantom-legacy-installation.pdf

Overhead Door https://www.overheaddoor.com > Documents PDF b. Blocks of wood, etc. may be substituted for extensions. • Center bracket on ... Model 696 - Motor Lifetime* and all other parts 5 years. Model 777-. CD ...
32 pages

What remote control works with my Overhead Door Legacy ...

overheaddooronline.com https://www.overheaddooronline.com > blog > bid

May 5, 2012 - The model number of the Legacy openers are shown as 496 or 696. You ... B and 496CD/B. There are many different styles and sizes of Code ...

Troubleshooting Guide for Overhead Door Legacy Garage ...

Overhead Door Parts Online https://overheaddoorpartsonline.com > blog > troubles...

Jul 14, 2020 - This blog will help you identify common problems, solutions and recommended replacement parts for the following Overhead Door Legacy model ...

If this picture at the link shown looks like yours, the red and white cord with the red plastic piece needs to be pulled to disconnect the automatic door opening chain.

http://www.aypapaquerico.info/overhead-door-legacy/overhead-door-legacy-large-size-of-garage-and-modern-overhead-garage-replacement-with-legacy-opener-overhead-door-legacy-496cd-b-manual/

Then, pushing the garage door fully open should move the mechanism back to connect in the ceiling. Then the remote control may work. If not, seek a repair service.

does the door have a sensor strip in it so when the door hits something coming down it stops and goes up maybe something stuck to pad? just a thought

something may be obstructing the door, so pull the red emergency release handle and try to pull the door manually.if you cant move it manually, call for professional help

make sure all snow and debris are clear of the area where the door closes

if there are no obstructions, manually set the adjustment controls on the back side of the opener panel. weather can sometimes change the amount of force needed to open/close. adjust the setting with a screwdriver to no more than 260 degrees, about 3/4 of a turn

Your sensor is bad. You can buy them from any dealer listed in the yellow pages under Liftmaster or Chamberlain.

Usually this means that your sensors on either side of the door are out of alignment or there is something blocking the sensors from making a connection. I did have a problem once were the door track twisted a little when the door started coming down thus making one sensor turn away a little and not allowing both sensors to make connection. Check to ensure the sensors are communicating correctly. Usually there are two lights, one on each sensor. They usually are red until they are properly lined up then they turn green. Some manufacturers have them flash until they are lined up then they stay on steady.

Door sensors have nothing to do with door opening. Only closing. It sounds like you have a bad gear in the motor unit. Remove the cover and it will be obvious if the gear is bad.

When the door reverses to the open position and the main light flashes 10 times it is a door sensor problem. Usually the sensors get bumped and need to be tweaked so that they are once again pointed at one another. Each sensor has a small light that must be on for them to work. The light on one sensor stays lit all the time and the other sensor light is only on when they are pointed at one another.

The flashing light in your wall control is a separate problem. One of the buttons on the wall control has an icon of a lock. Press and hold it for 3 seconds and release. It should stop flashing.

Unplug unit at power source and check and tighten all connections in the control box. And try this link.

http://www.garagedooropeners.us/technical_information.html

Mike

your infrared sensor is either misaligned, faulty, or you have a broken wire from your sensor to your door opener. (Flashing light indicates infrared light path is broken). both sensors should indicate green led. door wil not come down is safty feature to prevent door from closing when light path is broken.