the tilt sensor was correctly enrolled to the Smart Garage Hub.
3. Verify that when the garage door opener was enrolled to the Smart Garage Hub, the door moved on its own. If it
did not, the tilt sensor may have reported opening or closing unrelated to the Smart Garage Hub, causing the
Smart Garage Hub to set the incorrect frequency for the garage door. If this is the case, delete and re-add the
garage door to the Smart Garage Hub.
4. If the LiftMaster MyQ Smart Garage Hub is still not operating the garage door opener, attempt to re-enroll it again,
but choose
Unknown
as the manufacturer.
Program the door sensor and garage door opener
Important
: The following troubleshooting steps only apply to the 821LM. The 821LMB cannot be manually programmed
using these steps.
To program the door sensor to the 821LM:
1. Press and release the
[1]
button for door sensor 1 or
[2]
button for door sensor 2 on the 821LM. The yellow
LED turns solid to indicate it's active.
2. Press and release the
Test
button on the door sensor until the 821LM beeps and the light flashes.
◦ The yellow LED on the 821LM turns off.
◦ The hub beeps once if the door sensor was programmed into slot 1. The hub beeps twice if the door sensor
was programmed into slot 2. This helps identify which slot a door sensor is programmed to determine if the 1
or 2 button needs to be pressed for programming the garage door opener to the 821LM.
Note
: Once a sensor is enrolled to a slot, press the test button on the tilt sensor at any time to identify which slot it
belongs to based on if it beeps once for slot 1 or twice for slot 2.
To program the garage door opener to the 821LM:
Important
: Use the results from programming the door sensor to the 821LM to determine if the 1 or 2 button needs to
be pressed to program the garage door opener.
1. Press and release the
Button
(Settings), the Blue LED turns on solid.
2. Press and hold the
Button
again until the Green and Yellow LEDs alternate blinking.
3. Press and release the
Button
again, the Yellow LED turns on solid.
4. Depending on which slot the garage door opener is being programmed into, press and release the
[1]
or
[2]
button the number of times indicated in the following chart. Then the Yellow LED turns on solid.
Updated: Sat, 05 Sep 2020 16:31:10 GMT
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