If you are experiencing any of the above issues replace the light bulbs with cfl bulbs or.
Liftmaster garage door light does not work.
If you are experiencing any of the following issues your light bulb may not be compatible.
Check if something is blocking the way of the safety sensor.
If the lamp works in the outlet the console power supply works.
If you hear a click replace the light socket if you do not hear a click replace the logic board.
The liftmaster garage door opener lights will flash for ten times.
If the light is blinking push the lock button to turn off the lock feature.
Eliminate any item in between the sensors.
Plug a lamp into the wall outlet that services the console to check the power.
Check for a blinking light on the multi function door control panel.
Not able to program a new remote control or keypad.
Press and hold the lock button for 2 seconds then the led will glow solid indicating the lock feature has been deactivated.
To troubleshoot your liftmaster safety sensors.
Bulbs will not work in older garage door openers and some people believe these new style bulbs can actually interfere with the transmitter and receiver causing the opener remotes to not work properly.
Remote control only works when it is close to the garage door opener.
Unplug the garage door opener then immediately plug the opener back into the electrical outlet.
Listen for the light relay on the logic board to click.
When the safety sensor is not properly aligned or something is obstructing the light beam the garage door will fail to close.
Refer to your product manual to ensure your light bulbs do not exceed the recommended size and wattage for your unit.