I have checked that nothing is in the way of the electronic eye and it seems to happen most often when it is quite hot outside. The door just stops while in the process of closing and then opens over and over again ... any ideas or suggestions?
lets do this : release opener to manual operation open and close, slowly try to see where door is running rough. check all hinges tighten as needed. lube rollers hinges springs etc. operate opener without door check travel to see if clear, lube rail. if door runs odd when hot, check trim/seal around perimeter of door,lube trim with light coat of dish soap, also check the down force, and increase slightly. not the limit!
You may need to adjust the down limit. This could be a limit switch on the track that just needs to be moved a little or an adjustment dial at the motor housing. Check your manual for how to make this adjustment. The photo eyes at the bottom could be just a little out of alignment.
If there isnt anything in front of the photo eyes, then it is probably that your track needs to be greased. It seems like they all forget to tell you about this. I had the same problem and just sprayed white lithium grease down the track that connects to the opener....not the tracks where the wheels are at. This took care of my problem. Hope it helps
It sounds like you have a stuck transmitter. Believe me when I say, that this happens a lot. After repeatedly pushing the button over the years it starts to get worn down. Open your transmitter, aka hand held remote, and where the button is you will most likely see a little metal piece that is sprung over a connector. When you push that button it pushes the metal piece on to the connector opening your door, and then springs back up. Over the years that little piece may not spring back up like it use to and even if a side is touching then it will cause the door to open. If you bring your transmitter into a local garage door company they should be able to open it up and check it out for you. (At no charge) Good luck!
Calling the help line is your best option. #315 sounds like an odd model name. If the unit is a newer model (the last 2 years) it is possible that you're actually looking at the remote's frequency (315mhz) and not the model. Chamberlain (sold by Sears) recently switched to this frequency to help alleviate problems with interference. Also, newer models will not have dip switches for programming the remote (as mentioned above) but, rather, a learn button that is located on the back of the motor unit. To program a remote with this type of system you just press the learn button on the motor and then press and hold the remote control button for a couple seconds until you hear a faint click from the motor or see the small light next to the learn button blink - this means the remote was successfully coded. New remotes have to be programmed into your opener so you may have the correct remote but just not have it programmed in properly. Hope this helps.
