Support FAQ 2017-03-03T20:44:21+00:00

FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions

I need to replace a remote. 2017-02-15T18:17:56+00:00

Replacing a garage door opener is a common issue, and programming a remote control is easy. Please look at one of the scenarios below for the best solution to your situation: My remote control was lost or stolen. I purchased an additional remote control and just need to program it to my opener. If your remote control has been lost or stolen, a person will have unabated access to your garage. You should erase all existing remote controls out of your receiver. See section below for LiftMaster. See your owner’s manual for other brands.

How much room inside the garage do I need to install a garage door opener? 2017-02-15T18:18:08+00:00

The overall length of a garage door opener is your door height plus three feet and requires a minimum of 2 1/2″ above the highest point of door travel. A LiftMaster residential jack shaft operator does not require any back room and can be installed with only 12″ of side room.

Do I have to install the Safety sensors or photo cells? 2017-02-15T18:18:16+00:00

YES, they MUST be installed. The operator will not attempt to close the door if the beams are not installed. Due to federal regulations under UL325, there is no way to bypass or eliminate them. All residential garage door openers manufactured after 1993 are required to meet UL325.

How do I get into my garage when there is a power failure? 2017-02-15T18:18:22+00:00

If you purchased a battery backup unit, your opener will function normally even in a power outage. If not, then: How can I disconnect the garage door opener so I can manually open or close my garage door? Pulling the emergency release handle disconnects the garage door from the garage door opener. This action allows you to open and close the door manually. The emergency release handle is located at the end of a red rope that hangs from the garage door opener rail near the top of the garage door. Note: If you are using a residential jackshaft opener, the emergency release handle will be located at the bottom of the motor unit.

Will my old remote control work with the new opener 2017-02-15T18:18:30+00:00

No. Remotes are brand specific, so you will need new remotes with your new system. If you need assistance, please contact us.

How do I add, program or change a LiftMaster Keyless Entry Pin? 2017-02-15T18:18:37+00:00

Your keyless entry can be programmed to activate many devices, including garage door openers and commercial door openers. Program using the Learn Button Locate the learn button. Garage door opener: Located on the same side the antenna hangs from, you may have to remove the light lens. The Learn button may be green, orange, red, purple or yellow with a small LED next to it. MyQ Control Panel: Lift the push bar and locate the learn button. Press and release the learn button. If you have a MyQ Control Panel, press the learn button twice. Note: The 8500/8500C has a MyQ Control Panel. Within 30 seconds, enter a 4-digit Personal Identification Number (PIN) on the keypad and press ENTER. The LED indicator light will turn off or the operator lights will blink indicating programming was completed successfully. Wait 10 seconds to test out your PIN. To test, enter your 4 digit PIN and then ENTER. The operator or opener should activate. If not, repeat steps 2 and 3.

How do I program my LiftMaster remote control? 2017-02-15T18:18:45+00:00

To program using the learn button Locate the learn button. Garage door opener: Located on the same side the antenna hangs from, you may have to remove the light lens. The learn button may be green, orange, red, purple or yellow with a small LED next to it. MyQ Control Panel: Lift the push bar and locate the learn button. Press and release the learn button. If you have a MyQ Control Panel, press the learn button twice. Note: The 8500/8500C has a MyQ Control Panel. Within 30 seconds, press and hold the desired button on the remote control for three seconds. The LED indicator light will turn off or the operator lights will blink indicating programming was completed successfully. Press the remote control again to test out. The operator or opener should activate. If not, repeat steps 2 and 3.

Why do the lights on my garage door opener flash and my door will not close? 2017-02-15T18:18:52+00:00

The garage door opener is equipped with two safety features that may prevent the door from closing and cause the lights to flash.


The Lock Button on the Door Control

The lock button on the door control may be activated. Press the button to turn this feature off. The light bulb will blink two times. This feature is designed to prompt you that the lock button is activated. When the lock button is ON the garage door opener will work from the door control but the remote controls are locked out.


The Safety Reversing Sensors

The most common reason for the lights to flash on the garage door opener and the door not closing is that the safety reversing sensors are misaligned or obstructed; this is a safety feature of the garage door opener.

When properly connected and aligned, the sensor will detect an obstacle in the path of its electronic beam. If an obstruction breaks the light beam while the door is closing, the door will stop and reverse to full open position, and the opener lights will flash 10 times.

Your garage door opener is equipped with a Self Diagnostic feature to help you determine what the issue is. Based on the model of your garage door opener, your garage door opener will flash an LED next to your learn button or flash the Up and Down arrows a number of times to indicate the issue. Use the table below to diagnose and resolve the issue.

 LED Up/Down Arrow Symptom Answer
1 1 Up 1 Down Wires are cut, or not connected
ANSWER
2 1 Up 2 Down Wires are reversed, or there is a short in the wiring
ANSWER
4 1 Up 4 Down Safety Sensors are misaligned, or were momentarily obstructed
ANSWER

NOTE: The garage door can be closed by pressing and holding the door control push bar until down travel is completed.

How do I align my safety reversing sensors? 2017-02-15T18:19:00+00:00

The LEDs on both the sending and receiving sensors will glow steadily when the wiring connections and alignment are correct. The amber LED on the sending sensor will glow regardless of alignment or obstruction. If the green LED on the receiving sensor is off, dim, or flickering (and the invisible light beam path is not obstructed), alignment is required.

Note: On the older safety sensors, both LED lights are green. The receiving sensor is the one where the green light goes out when you pass your hand in front of the sensor. The sending sensor stays solid.

  1. Remove the receiving sensor (green LED) from bracket. You can do so by taking off the wing nut.
  2. Point the sensor away from the sending sensor so that the LED light is completely off.
  3. Once the LED light is off, wait 10 seconds.
  4. Slowly rotate sensor back until it lights again. When you have a strong green light, put it back into the bracket and put the wing nut back on.
What’s my LiftMaster® Remote Compatibility? 2017-02-15T18:19:07+00:00

Find your garage door opener’s Learn Button to determine what model of remote control is compatible. The Learn Button is located on either the back or the right side of the opener, near the hanging antenna wire.


If you are using the MyQ Control Panel G888LM please follow the programming instructions located: LiftMaster Model 888LM MyQ Control Panel Instructions

Remote Control Keyless Entry MyQ Accessories
891LM (One-Button Remote) 823LM Remote Light Switch
893LM (Three-Button Remote) 825LM Remote Light Control
893MAX (Three-Button Remote) 828LM Internet Gateway
890MAX (Mini-Keyring Remote) 829LM Garage Door Monitor
895MAX (Three-Button Remote)
892LT (Two-Button Learning Remote)
894LT (Four-Button Learning Remote)
885LM Wireless Door Control


If your garage door opener has a Yellow Learn Button, it utilizes Security+ 2.0 technology. Use the chart below to find your remote or keyless entry’s model number.

Learn Button Compatible Remote Controls Compatible Keyless Entry
891LM (One-Button Remote) 877LM
893LM (Three-Button Remote) 877MAX
893MAX (Three-Button Remote)
890MAX (Mini-Keyring Remote)
895MAX (Three-Button Remote)
892LT (Two-Button Learning Remote)
894LT (Four-Button Learning Remote)


If your garage door opener has a Purple Learn Button, it utilizes Security+ 315Mhz technology. You will see a ((())) symbol on all of your remote devices. Use the chart below to find your remote or keyless entry’s model number.

Learn Button Compatible Remote Controls Compatible Keyless Entry
371LM (One-Button Remote) 377LM
372LM (Two-Button Learning Remote)* 379LM-10 (Fingerprint Keyless Entry)
373LM (Three-Button Remote)
374LM (Four-Button Learning Remote)*
370LM (Mini-Keyring Remote)
373P (Premium Three-Button Remote)
893MAX (Three-Button Remote)  877MAX
890MAX (Mini-Keyring Remote) 877MAX
895MAX (Three-Button Remote)
892LT (Two-Button Learning Remote)*
894LT (Four-Button Learning Remote)*

*The 892LT and 894LT are replacements for models 372LM and 374LM.


If your garage door opener has a Red or Orange Learn Button, it utilizes Security+ 390Mhz Rolling Code technology. Use the chart below to find your remote or keyless entry’s model number.

Learn Button Compatible Remote Controls Compatible Keyless Entry
971LM (One-Button Remote)
972LM (Two-Button Learning Remote)*
973LM (Three-Button Remote)
974LM (Four-Button Learning Remote)*
970LM (Mini-Keyring Remote) 977LM
893MAX (Three-Button Remote)
890MAX (Mini-Keyring Remote)
895MAX (Three-Button Remote)  877MAX
892LT (Two-Button Learning Remote)*
894LT (Four-Button Learning Remote)*

*The 892LT and 894LT are replacements for models 972LM and 974LM.


If your garage door opener has a Green Learn Button, it utilizes Billion Code technology. Use the chart below to find your remote or keyless entry’s model number.

Learn Button Compatible Remote Controls Compatible Keyless Entry
81LM (One-Button Remote)  66LM
82LM (Two-Button Remote)  66LM
83LM (Three-Button Remote)
84LM (Four-Button Remote)  877MAX
893MAX (Three-Button Remote)
890MAX (Mini-Keyring Remote)
895MAX (Three-Button Remote)

How do I erase the remote control from the LiftMaster garage door opener’s memory? 2017-02-15T18:19:15+00:00

There are a few instances that the memory of your opener would need to be erased.

  • An unwanted remote is activating your garage door opener
  • One remote button is activating multiple doors
  • Your remote control is lost or has been stolen
  • Purchased a new home and want to set garage door opener back to factory default

NOTE: Erasing the memory will remove ALL remote controls and keyless entry codes from the garage door opener.

Begin by locating the LEARN button on the back or side of the motor unit; generally this is on the same side as the antenna wire. You may need to remove a light lens cover or open a control panel to gain access. The LEARN button may be green, orange, red, purple or yellow, and will have a small LED next to it.

Note: Erasing the memory on your opener will clear out any working remotes or keyless entries. You will need to reprogram them.

Erase all remote controls and keyless entries

Units with a green, orange, red, purple or yellow LEARN button:

  1. Press and hold the LEARN button on the garage door opener until the LED next to the button goes out (approximately 6 seconds). All remote controls and keypads have been erased.

Erase all remote controls, keyless entries and MyQ® devices from the garage door opener

  1. Press and hold the LEARN button on garage door opener until the Learn LED goes out (approximately 6 seconds).
  2. Immediately press and hold the LEARN button again until the Learn LED goes out. All codes are now erased. Reprogram any accessory you wish to use.
Why is my garage door LiftMaster opener beeping? 2017-02-15T18:19:21+00:00

Premium LiftMaster garage door openers featuring a battery backup and/or Wi-Fi connectivity have a buzzer to alert you by making a beeping sound. You will hear a beep to confirm a step is performed successfully or you will hear a beep to diagnose an issue. The number of beeps heard will depend on the type of garage door opener and the function you are performing on the garage door opener.

If you have a garage door opener with a battery backup and it is…

  • Beeping every 2 seconds
    • This means the unit is operating under battery power. The battery LED will display solid orange.
    • Ensure the power is restored throughout the house. If power is restored but the LED is still orange, then test the electrical outlet by plugging in a different device.
  • Beeping every 30 seconds
    • If the battery LED is flashing orange it means the battery is low.
    • Test the electrical outlet by plugging in a different device. If there is power and the LED does not change to a flashing green, then replace the battery.
  • Beeping every 30 seconds
    • If the battery LED is solid red, then the battery is dead and cannot recharge.
    • Replace the battery.

Note: To temporarily stop the beeping while waiting on a new battery, unplug the unit and disconnect the battery. After disconnecting the battery, plug the unit back and the beeping will stop.


Useful information about the backup battery

The battery is designed to run 20 full cycles on a full charge, which equates to about 1 -2 days of normal operation. If the power is not restored by this time, the battery needs to be unplugged from the motor. If you do not disconnect the battery, it will drain too low and will not recharge. The battery would then need to be replaced.

  • It is a 12-volt rechargeable battery with 4.5 AH (amp hours).
  • The weight of the battery is 4.5 lbs.
  • The backup battery is an accessory and has a one-year warranty from the date of purchase.

If your garage door opener has Sec+2.0

  • You will hear 1 beep when the garage door opener is placed into limit and force Learn mode. You will also hear 1 beep when pressing the up and down arrows.
  • Constant beeping indicates the door is closing unattendedly.
  • Garage door openers using a timer-to-close control panel will beep for 8 seconds before an open garage door closes. It will continue to beep until the door is closed.

If your garage door opener has Wi-Fi

In addition to the beeps heard from the Sec+2.0 garage door openers, the Wi-Fi Garage Door Opener will also beep under the following condition:

  • 1 beep: When GDO is placed into Wi-Fi Mode
  • 1 continuous beep: While in Wi-Fi mode, the GDO is attempting to connect to router
  • 2 beeps: While in Wi-Fi mode, the GDO is attempting to connect to MyQ Server
  • 3 slow beeps: While in Wi-Fi mode, the GDO connects to network
  • 6 fast beeps: While in Wi-Fi mode, the GDO fails to connect to server
  • 3 fast beeps: Confirmation of Erase of Wi-Fi from GDO
How do I find my Learn button on my garage door opener? 2017-02-15T18:19:29+00:00

The Learn button on your garage door opener is located above the antenna wire that hangs from the motor head, or it may also be under a light cover. The Learn button will be either green, red/orange, purple or yellow.

The Learn button has two functions: One is to program accessories to the opener; the other is the clear the memory of the opener. Clearing the memory on a unit will erase all of the accessories that are programmed to the opener.

If your system has a green, red/orange or purple Learn button

To program the remote:

  1. Press and release the Learn button, the light will come on steady for 30 seconds.

To clear the memory:

  1. Press and hold the Learn button. The LED will turn on. After 6 seconds the LED will turn off which will clear out the handheld remote controls and keyless entry.

If your system has a yellow Learn button:

To program the remote:

  1. Press and release the Learn button. The light will come on steady up to 2 minutes.

To clear the memory: This action must be completed two times to remove MyQ accessories and door controls.

  1. Press and hold the Learn button. The LED will turn on. After 6 seconds the LED will turn off which will clear out only the handheld remote controls and keyless entry.
  2. Within 3 seconds of the LED turning off, press and hold the learn button for 6 seconds. When the LED turns off a 2nd time, the MyQ accessories and door controls will be removed from the garage door opener.
  3. Reprogram devices if necessary.