The LiftMaster remote garage door opener works well for the most part. However, a problem may arise that causes the door not to work. Most likely, it is an issue with one of the major components.
Below are the top three things to check to troubleshoot why your LiftMaster remote garage door opener is not working.
1. Remote
One of the top reasons for a LiftMaster garage door not working is if the remote has a problem. You can easily tell if the remote has a problem if you press it to open or close the garage door and the opener system does not respond.
There are several reasons that your remote may not work, including:
- The remote batteries are dead. Remote batteries wear out, requiring replacement. Replace the batteries with the recommended type for your remote. Typically, Liftmaster garage door opener remotes use a 3V CR2032 battery. Although using rechargeable batteries for garage door remotes can help to minimize waste, they are not suitable in some instances as they do not produce enough power.
- The battery contacts may be damaged. Inside the battery housing of the remote are metal plates that transmit power from the batteries to the remote. If the connections are damaged, covered in dirt, rusty, or corroded, they will not be able to transmit power.
- Check the contacts for any signs of corrosion, rust, or discoloration. Use a dry, clean cloth to wipe the contacts, then polish them with a fine-grit sandpaper. It will eliminate any accumulated dirt and rust, allowing power to flow from the battery to the remote again. The attachment to the remote may also be loose. In this case, reattach it or have a technician reattach it. If the battery contacts have extensive damage, you may need to replace them or the entire remote.
- Remote photo eye may be damaged or covered with dirt. A remote’s photo eye transmits the signal to the garage door opener receiver. It is common for dirt to accumulate on the photo eye over time, hindering signal transmission. Clean it with a soft, damp cloth to remove the dirt. In some instances, the photo eye casing may be pitted and scratched, requiring you to buy a new remote.
- The remote needs to be reset. If the garage door remote controller on the wall is constantly flashing and unresponsive to the remote signal, the remote control is locked out of service. Press the lock button on the wall control for a few seconds until the light stops flashing. The remote should now become responsive. You will need to reset or reprogram the remote control if the remote does not respond. To reprogram, open the back of the motor unit. Simultaneously, press the “learn” button on your Liftmaster garage door opener motor. The garage door opener light will begin to flicker, indicating that the remote control is reset.
- Radiofrequency (RF) interface. If you have recently installed an LED bulb on your garage door opener, it may be causing RF interference from the remote to the receiver. You may notice that the remote works well when the LED light is turned off but does not work well early in the morning or at night when the LED bulb is on. Replace the LED bulb with a fluorescent bulb.
2. Safety Sensor
You can easily tell if the safety sensor is the issue if the garage door refuses to close. The safety sensor’s path may be blocked, misaligned, or dirty.
To troubleshoot, switch off the power supply to the garage opener system. Inspect the safety sensor mechanism to ensure no blockage between the sender and receiver. Wipe the sensor with a soft microfiber cloth to remove dirt and dust. Then, realign the sensors by loosening the fastener and straightening the sensors. Finally, inspect the safety sensor’s wiring to ensure the black and white wires are connected to the correct terminals and are not loose.
3. Power Supply
If there is an issue with the power supply to the garage door opener, it will not work. Power supply issues can be caused by a tripped circuit breaker, a blown fuse, a loose plug-in, or a broken motor unit.
Start by confirming that the power outlet is working and that the garage opener plug is firmly plugged into the socket. If not, check if the circuit breaker has tripped or the fuse is burned. If the issue is with the power outlet, switch off the power in the garage and call an electrician to fix it.
Next, check if there is power to the wall control. Use a screwdriver to open the wall button. Inspect the circuit board for any loose wire connection. Also, use a tester to check if there is current flow through the wire. If you establish that the wall button is faulty, you can replace it yourself or hire an electrician. Also, have them inspect the logic board. Although the electric supply to the wall control is low voltage, observe caution when handling electricity.
If the motor unit is broken, it will interrupt the other components' power supply. Some signs that your motor unit may be damaged include excessive noise, the door taking longer than usual to open and close, the garage door failing to open, or the operator being unresponsive. Have a garage door service professional inspect the motor unit and replace it if necessary. Never open the motor housing yourself, as it poses an electric hazard.
LiftMaster Remote Garage Door Opener Not Working
Regular garage door service is the key to keeping your door system operating effectively and catching issues easily. However, various components are bound to wear out over time, causing the garage door opener not to work. Check the remote control mechanism, power supply, and safety sensors to troubleshoot if your garage door is not working.
If you can’t figure out the cause of your LiftMaster remote garage door opener not working or how to fix it, hire a professional repair service. As a safety precaution, never open the motor housing yourself, and hire an electrician to handle any electrical issues.
For any questions or concerns regarding your garage door opener, feel free to contact All Security Equipment, where our team stands ready to assist you. Your safety and satisfaction are our top priorities.
