I can't get my chamberlain lift to set the limts. Each time the light blinks once but then blinks ten times. I have followed the instructions to the letter and tried to do it manualyl. All of the butttons work including wall and remotes. the door opens and closes but doesnt open enough.

most of the time blinking is do to sensor error ==out of alignment blockage ir wiring for further trouble shooting these links should help https://www.chamberlain.com/CatalogResourcesV3/en-us/shared/files/tucmanuals/114A4763.pdf https://www.chamberlain.com/CatalogResourcesV3/en-us/shared/files/tucmanuals/114A5007.pdf or if you have your owners manual use it

If you have a 315MHZ LiftMaster Garage door opener do the following:
Follow the purple wire (Antenna) up and you will see a square purple button.
Press and hold the square purple button for ten seconds until the amber led goes out.
Press and release the purple button one time (The amber led will come on solid).
Press and hold the button on the garage door opener remote control for two seconds (The light bulb on the garage door opener will blink and you will hear a click sound the amber led will go off).
to program the wireless keypad do the following:
Press and release the purple button one time (The amber led will come on solid).
Enter a four digit code into the keypad then press and hold the enter button for two seconds (The light bulb on the garage door opener will blink and you will hear a click sound the amber led will go off).

sensors need to be alined both should have green lites

1. Press the four buttons for your personal entry PIN, then press and hold the * button. The opener light will blink three times. Release the button.
2. Press the temporary 4 digit PIN you have chosen, then press ENTER. The opener will blink four times.
3. To set the number of hours this temporary PIN will work, press the number of hours (up to 255), then press *.
OR
3. To set the number of times this temporary PIN will work, press the number of time (up to 255), then press #. The opener light will blink once when the temporary PIN has been learned.
Test by pressing the four buttons for the temporary PIN, then press Enter. The door should move. If the temporary PIN was set to a certain number of openings, remember that the test has used up one opening. To clear the temporary password, repeat steps 1-3, setting the number of hours or times to 0 in step 3.

If the main light is blinking 10 times check your door sensors. Make sure they are pointed at one another and the small light on each one is lit and not flickering. Tweak them a bit. If you cannot get both lights to come on you have a bad sensor.

The 4½ minute interval can be changed to 1½, 2½ or 3½ minutes as follows: Press and hold the Lock button until the light blinks (about 10 seconds). A single blink indicates the the time is reset to 1½ minutes. Repeat the procedure and the light will blink twice, resetting the timer to 2½ minutes. Repeat again for a 3½ minute interval, etc., up to a maximum of 4 blinks and 4½ minutes.

The pcm (powertrain control module ) is telling you it has a set code in the memory. Take the car to a parts place like (auto zone ) and have them to run a scam on the pcm for a trouble code. Once you have done that then you will be able to correct the problem. Hope this will help you.

The motor will probably need rewinding.
Professional job. Don't forget to take the condensor with the motor.
Or alternatively, if money isn't a problem,, get somebody out to look at it.
There ya go:)

http://www.chamberlain-diy.com/doityourself/pdfdocs/114A2184.pdf
This web address came from the Chamberlain site. I also needed to relearn my remotes due to a newer car that has a built in garage door opener that needed to be set. I also needed to reset my keypad remote, those instructions I was able to get from the same site. Good Luck

Yes. But you need a remote transmitter that is programmed to open the Lift Master. Then you just follow the instructions in your home link and it should work.

Press the homelink outside 2 button at the same time and hold till fast blinking (all erased). Then press homelink button1 and hold while aiming the transmitter (2 inches away) and pressing appropriate button on the remote. Continue to hold both till fast flashing seed on the homelink. Release both. Then hold the next button on the homelink you want to program, aiming the remote again, and pressing and holding the appropriate button on the remote, until fast flashing, and then releasing again, ......