LiftMaster Customer FAQ

If your garage door opener stops at the halfway point, it may be due to misaligned sensors, an obstruction in the door's path, or issues with the travel limits. First, check for any objects blocking the door. Then, inspect the safety sensors at the bottom of the door tracks for alignment and cleanliness. If the sensors are in good condition, you may need to adjust the travel limits on your garage door opener. Refer to the user manual for instructions on making these adjustments.

Yes, you can erase all remote control codes from your LiftMaster opener to prevent the stolen remote from being used. First, locate the "Learn" button on your garage door opener. Press and hold the "Learn" button until the indicator light turns off, which typically takes about six seconds. This will erase all remote control codes. After that, you can reprogram your remaining remotes.

To program your 976LM wireless keypad to your SL585 gate opener, switch off the power for your gate opener first. Now, find the 'learn' button on the gate opener and press it. The learn LED light will switch on. Now go to your keypad, enter the four digit code you've chosen, then press and hold the 'enter' button. While holding the 'enter' button, wait for the gate opener's LED lights to flash. This signifies that the new code has been accepted. Release the 'enter' button on the keypad. You have now successfully programmed your wireless keypad with your new code. Now, switch the power back on for your gate opener. Your gate should now open with your new code.

To replace the drive belt on your LiftMaster garage door opener, follow these steps: 1. Unplug the garage door opener to ensure safety. 2. Remove the outer casing of the garage door opener. 3. Locate the drive belt. This will likely be a long rubber belt with grooves on the inside. 4. Release the tension from the belt by slowly twisting the tensioner. 5. Once the belt is loose, you can remove it from the motor and the trolley. 6. Replace it with a new drive belt. 7. Adjust the tension on the belt by reversing the procedure from before. The belt should be tight but not overly strained. 8. Replace the outer casing and plug in the garage door opener. You should always refer to the user manual or seek professional assistance to avoid damaging the unit or injuring yourself.

It sounds like your LiftMaster garage door opener may be having an issue with its closing force setting or its travel limits. The closing force ensures the door shuts securely, but if it's too high, the door might close abruptly. The travel limits determine how far the door should move to fully open or close. If they're incorrectly set, it might cause the door to slam shut. Both settings can be adjusted according to your garage door model's user manual. However, due to the potential danger of adjusting garage door settings, we recommend a professional technician perform the adjustments for safety.