There should be 2 sensors on the bottom of your door on the inside, 1 on the right side and 1 on the left side. These sensors serve 1 purpose to send a beam or reflection to each other. If something is blocking this reflection or is in front of the sensor the door will always come back up. It is a safety feature so nothing or no one gets hurt when the door is closing!
If any thing is blocking these sensors the door will not close! Make sure nothing is in the way not even a peice of paper.
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Press and hold the light button for 10 seconds. (Upon pressing the light button, the lights will immediately turn off and come on 10 seconds later.)
Deactivate the Light Feature
Close the garage door.
Start with the garage door opener lights "OFF".
Press and hold the light button for 10 seconds. (Upon pressing the light button, the lights will immediately turn on and go off 10 seconds later.)
Press the Light button to turn the opener light on or off. It will not control the opener lights when the door is in motion. If you turn it on and then activate the opener, the light will remain on for 4-1/2 minutes. Press again to turn it off sooner. The 4-1/2 minute interval can be changed to 1-1/2, 2-1/2, or 3-1/2 minutes as follows:
Press and hold the Lock button until the light blinks (about 10 seconds).
A single blink indicates that the timer is reset to 1-1/2 minutes.
Repeat the procedure and the light will blink twice, resetting the timer to 2-1/2 minutes.
Repeat again for a 3-1/2 minute interval, etc., up to a maximum of four blinks and 4-1/2 minutes.
**** >>> This setup I performed with my new 2010 BMW 528XI Garage Door Homelink and Chamberlain Garage Door Opener <<< ****
Chamberlain: 01. Power off or unplug the garage door opener motor power supply (which is mounted on ceiling of the garage) ;;;
02. keep the garage door opener transmitter in your hand (do not press any button at this time) ;;;
03. In your 2010 BMW 528XI Homelink button (which resides under rear view mirror) press the 1st and 3rd homelink button together for about 30-40 seconds (i.e., until the yellow light blinks fast) and when the yellow light next to the homelink button blinks fast release from pressing the (homelink) buttons ;;;
04. now hold the garage door opener transmitter closer (means within 2-4 inches) to the homelink button (either 1st or 2nd or 3rd) whichever you are planning to program to open the garage door ;;;
05. now press the garage door opener transmitter button and chosen homelink button (either 1st or 2nd or 3rd whatever you need) together ;;;
06. the yellow light (next to homelink button) initially may blink slowly but after few seconds (may be 10-20 seconds) will blink fast; once it started blinking fast release from pressing both garage door opener transmitter and homelink button ;;;
07. Now plug or power on the main garage door opener motor (which is mounted on garage ceiling) ;;;
08. On the main garage door opener motor (which is mounted on garage ceiling) press the "LEARN" button (once you press it may have yellow/orange color light; make sure the light is on) ; then within 30 seconds do the next steps #9, #10, #11 very carefully ;;;
09. go to your car and press the homelink button you programmed and hold it for 4 seconds and then release it --> 1st iteration ;;;
10. again hold the same homelink button you programmed and hold it for 4 seconds and then release it --> 2nd iteration ;;;
11. again hold the same homelink button you programmed and hold it for 4 seconds and then release it --> 3rd iteration ** important note; generally three iterations are not necessary; and steps #9, #10, #11 must be performed within 30 seconds ** ;;;
12. during one of the iteration you will hear "CLICK" sound one-time from Garage door motor (which is mounted on ceiling) and if you have light attached with it; it will blink once (** if you hear the CLICK sound and/or light blinks once**) then the particular homelink button is programmed ;;;
13. now press the programmed homelink button; the garage door will open or close (but always it will take 3 or 4 blinks in yellow light or 2-3 seconds before the garage door opens or closes and which is normal) ;;;
** Thats it, your 2010 BMW 528XI Garage Door Opener Homelink setup is complete ** ;;;
You can program rest of the homelink button the same way but following from the steps between #4 and #13 ;;;
Hope this steps will help you to program chamberlain Garage door opener in 2010 BMW 528XI Homelink. ;;;
** possibly the above same steps may work with other BMW 5-series cars homelink too (but I'm not sure) **
This is not a sensor issue, I have a similar problem, sensors work fine, garage door is still fully functional, all operations, including safety sensors work properly, just the overhead lights flash. I suspect there was damage to the power board due to a power surge, going to order a replacement to see if it works, will let you know how it goes.
If the main light flashes 10 times when the door reverses to the open position it is a door sensor problem. Make sure both lights on the sensors stay on and don't flicker while the door is moving and the sensors are firmly attached so they don't move. Tweak them just a bit.
The blinking LED is sending the code for "RPM sensor or motor overload. It isn't the motor or it wouldn't run at all. The RPM sensor is a small printed circuit board near the front of the motor. It will be available at Sears or any good door opener service company.
The fault code (4 blinks) is informing you of an issue with the infrared sensor that detects an obstruction in the path of the door.
It is ether misaligned or an issue with the wires leading to it or its faulty.
If the red beam is present at the sending unit (affixed to the doors frame), then it should be aimed at the receiving unit (affixed to the opposite frame) If the beam is received then there should be a green indicator light illuminated.