All LiftMaster® openers, with the proper installation components, can raise up to a 10-foot high garage door. Certain model LiftMaster openers can raise up to a 14-foot high door. Your local authorized Garage Door Systems dealer can provide recommendations for which models will best suit your needs. Prior to the installation of your LiftMaster garage door opener, your installing dealer will verify that the proper equipment will be used for your garage door.

Each style of "drive system" has its advantages. Chain drive and belt drive openers work well in all types of applications.

Belt drive openers are the smoothest, most quiet openers LiftMaster manufacture, and have an excellent reliability record. They are recommended for use whenever noise and vibration are important considerations. If there is a living space above or near the garage, the belt drive openers will minimize the amount of noise generated by the opener.

Chain drive openers have been in production for the longest amount of time, and offer dependable performance year in and year out.

Regardless of which type of opener you choose, all LiftMaster systems are very reliable and require virtually no maintenance throughout the life of the opener.

If the opener's light bulbs do not turn on, but all other functions of the opener seem to work properly, then there is usually a quick and easy solution:

• Unplug the garage door opener.
• Remove the light bulb, and check to be sure the bulb is not burned out.
• Locate the small metal tab at the base of the socket. Clean away any corrosion you may find on the tab as much as possible. With a small instrument, generally pry up on the metal tab to ensure that it will make solid contact with the light bulb.
• Reinstall the bulb, plug the opener back in, and the bulb should illuminate.

I have to be very close to the garage door, or even within a few inches of the opener for my remote controls to work.

Limited range of your remote controls could be related to radio frequency interference that comes from something in your home or in the surrounding environment. Certain electrical devices can radiate interference; this could be almost anything that is plugged into an electrical outlet.

Please keep in mind that the device can be brand new, or can be an item that has been in use for quite a while. Also, the item may continue to function properly as far as you are able to tell. The only problem with the item may be that it has started to broadcast the interference, with no other symptoms noted.

Some devices are more likely to generate interference than others. This includes TV cable, cable amplifiers, surge protectors, fluorescent lights, battery charging devices (power tools, golf carts, etc.), anything that utilizes a timer (sprinkler systems, lights, alarm systems, etc.), and a myriad of others. If the problem seems sporadic, we can safely assume that the device responsible for the interference is only being operated during those times. Again, please keep in mind that the age of the device does not determine if it is capable of broadcasting unwanted interference. Any electrical device can be the source of the problem.

The first step is replacing the battery in your remote. If the range on your remote does not improve, remove the wall control wires from the overhead unit. If the range does not improve you will likely need to replace the remote control.

There are a few different things that can cause this type of problem.

Look at the LED light next to the SMART/LEARN button on the motor unit. If you are facing the garage door, the SMART/LEARN button is located on the rear end or right hand side panel of the motor unit. You may need to remove a light lens cover in order to see it. This button is either purple, red/orange, green, yellow, grey, or white in colour. If the light is flashing rapidly this means you have a stuck button on one of your remote controls. Take the batteries out of each remote control. When you remove the batteries from the bad remote, the light will stop flashing. This remote needs to be replaced.

If one of your neighbour's remote controls is inadvertently programmed into your receiver, your door will open when their remote is activated. If this happens you will need to clear out your receiver and reprogram your remote controls:

• Press and hold the LEARN button for six seconds, or until you see the small LED light near the button turn itself off.
• If the above steps have been followed and the symptoms continue, there may be an electronic short in either the wall control button or the receiver logic board. In this case, remove the wall control wires from terminals one and two (or red and white) on the motor unit. Should the symptoms persist after the wires are removed, replace the receiver logic board. If the symptoms stop with the wall control wires removed from the motor unit, replace the wall control button, and the wires leading to the wall control button.

Depending on the model that you own, there are two ways to program your remote control:

Locate the LEARN button on the overhead garage door opener. This button may be green, red, orange, purple, or blue, and will have an LED indicator light near the button.You can find the LEARN button on the rear or right side of the overhead opener. You may need to remove a light bulb cover or control cover to access the button.
Press and release the LEARN button. A small indicator light will glow steadily.
Within 30 seconds, press and hold the button you wish to use on your remote control. When programming is successful, the main light bulb(s) in the overhead opener will flash, and two "clicks" will be heard.
Release the button on the remote control, and press it again to test. The opener will operate.

If your remote has a RED LED with a program button located under the visor clip or a small hole on the side of the remote: Locate the LEARN button on the overhead garage door opener. This button may be green, red, orange, purple, blue or yellow. You can find the LEARN button on the rear or right side of the overhead opener. You may need to remove a light bulb cover or control cover to access the button.

Press and release the LEARN button. A small indicator light will glow steadily.
Put your remote in programming mode: the LEARN button is placed either under the visor clip, or on the side of the remote. Remove the clip and insert the tip into the underneath slot, or use a paper clip and insert the tip in the hole on the side of the transmitter. The LED on the the front of the transmitter will turn on - your transmitter is now in programming mode.
Within 30 seconds, press and hold the button you wish to use on your remote control. When programming is successful, the main light bulb(s) in the overhead opener will flash, and two "clicks" will be heard. You might have to repeat this step, until you see the light flash or hear the sound.
Press any other button to exit the programming mode.
Your remote is programmed.

When programming my remote, I do not hear a click and the light bulb doesn't flash. What do I do?

You may have to press the button that you want to program several times. Slowly press this button, and if nothing happens, press again until the operator recognizes the code sent by the transmitter.

Also check that your transmitter is still in programming mode – the LED in front of the transmitter should be lit.

It is recommended that you refer to your owner's manual to verify the compatibility.