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memory for that slot is clear. Release the button once the yellow LED turns off.

2. Power off the motor that is not being enrolled, and go through the enrollment process for one of the garage door

motors.

3. Once the first motor is enrolled, power off that motor and power on the other motor.

4. Go through the enrollment process for the garage door motor currently power on.

5. Once the second motor is enrolled, power on the first motor. Test remote commands to verify the garage motors

are functioning properly.

Door Sensor reports status

Unknown

or

Malfunction

If the door sensor reports an

Unknown

or

Malfunction

status, try the following steps to restore communication.

Note

: The default status of the door sensor when it's first enrolled is

Unknown

.

Locally open and close the garage door

Open and close the garage door using the opener's wall control. A manual update of the garage door's status can clear
the malfunction and restore communication.

Update the LiftMaster equipment list

Update the LiftMaster equipment list to verify the correct status appears for the garage door. For more information about
requesting an update, see

Request an updated LiftMaster equipment list

.

Verify the garage door opener is within communication range

The Wi-Fi hub should be installed on the ceiling in the garage where the garage door opener is located. The Hub should
also be within 30 feet open air of the door sensor that is installed on the garage door.

Test the door sensor battery

Test the door sensor to verify the device is receiving power by pressing the door sensor's

Test

button. The Yellow LED

on the door sensor blinks, and the Wi-Fi Hub beeps once or twice to indicate the slot number the sensor is associated
with.

• If the Yellow LED on the door sensor does not blink, replace the 3 volt CR2450 Lithium battery. For more

information, see

Which type of battery does the MyQ Garage Door Tilt Sensor use?

.

◦ Once new battery is put in the door sensor, the garage door sensor should come back online. The garage door

may need to be opened/closed using the garage door opener's wall control for a manual update of the garage
door's status to restore communication.

◦ If Yellow LED still does not blink after replacing with good batteries, the door sensor may need to be replaced.

• If the Yellow LED blinks on the door sensor but the Wi-Fi Hub does not beep once or twice, the door sensor is not

connected to the Wi-Fi Hub. It is recommended to remove the door and relearn it into the Wi-Fi Hub.

https://answers.alarm.com/ADC/Partner/Installation_and_Troubleshooting/Garage/LiftMaster_MyQ_Smart_Garage_Hub/LiftM…

Updated: Sat, 05 Sep 2020 16:31:10 GMT

7

Summary of Contents for myQ 821LM

Page 1: ...shooting take note of the various LEDs on the LiftMaster MyQ Smart Garage Hub LED color and state MyQ Smart Garage Hub status Wi Fi needs to be set up No router communication Wi Fi setup active Communicating with router Programming mode Wi Fi connected https answers alarm com ADC Partner Installation_and_Troubleshooting Garage LiftMaster_MyQ_Smart_Garage_Hub LiftM Updated Sat 05 Sep 2020 16 31 10 ...

Page 2: ...hat is connected to the door sensor until the Yellow LED turns off Note If there is already a successful garage door sensor enrolled on the Wi Fi Hub verify that door sensor s slot number by pressing its Test button before clearing the slots Do not clear the successful door sensor s slot number If the LED on the door sensor is Red it is incompatible with the 821LM due to its use of Bluetooth commu...

Page 3: ...rom the account Alternatively clearing the slots and power cycling may resolve as well Press and hold the 1 button to produce a solid yellow LED Continue to hold until the yellow LED turns off The slot should now be clear Repeat with 2 for the second slot Android device is not connecting to the Wi Fi Hub Some mobile devices like the Samsung Galaxy use a feature called auto switching which can caus...

Page 4: ... com s website All of the remotes are disconnecting from the garage door opener during enrollment For many garage door openers pressing and holding the program learn button causes the opener to forget all the devices that it is linked to If all remotes are disconnected from the garage door opener each remote needs to be re enrolled if the user wants to continue using it Try to hold down the learn ...

Page 5: ... 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...

Page 6: ...ng two non MyQ garage doors to one hub Even after trying multiple factory resets it may be determined that the doors are using the same channel Due to this it is always important to only power up the motor being enrolled one at that time This behavior is caused by the motor s remote control memory having both 821LM slots enrolled As a result the only way to resolve this behavior is to erase the mo...

Page 7: ...n communication range The Wi Fi hub should be installed on the ceiling in the garage where the garage door opener is located The Hub should also be within 30 feet open air of the door sensor that is installed on the garage door Test the door sensor battery Test the door sensor to verify the device is receiving power by pressing the door sensor s Test button The Yellow LED on the door sensor blinks...

Page 8: ...llation Guide Door sensor reports Low Battery trouble condition If the door sensor reports a Low Battery trouble condition on the Partner Portal or MobileTech app try the following steps Replace the battery This trouble condition can be resolved by replacing the battery in the door sensor The MyQ Garage Door Tilt Sensor uses a 3 volt CR2450 Lithium battery For more information see Which type of ba...

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