liftmaster Chamberlain Garage Door Opener Transmitter 300MC "opens 12" Questions

Garage door opener chain out of sync with door I just bought a foreclosure home. The part of the garage door opener chain that the garage door hooks to is located about 8-12 inches forward of the ...

My garage door won't open, the motor is working, shaft spinning but not engaging with the chain. What should I do? If the motor is spinning but the chain is not, then there is probably a bad gear ...

Why won't Chamberlain 1040-6 garage door opener open or close? In addition to the ANT suggestion, are you able to open/close the door with the button first? And then check the 12-volt battery in the ...

Have a Chamberlain liftmaster professional 1/2 horsepower garage door opener that is only opening 6-12 inches and then stops. Just started in cold weather. If I keep retrying it, the door will ...

we have a battery powerd charger,model mag.12 u.o.,and like to now if it can be changed over to be an electric Yes using a 12 dc output with 500 mA in place of a battery. Highly Portable: Ultra ...

relays click constantly in forward and reverse and unit does not run. If the relays constantly click, your motor is shorted out and bad causing your thermal breaker to trip and open the relays. You ...

my web cam do not detected by my msm open your control panel. then click the firewall then goto firewall then click the exception, then click add program then list your webcam to the exception,, ...

When I try and use the winch all I get is a clicking sound from the control box. The winch motor will not engage in or out. When the winch clutch is placed in the out position I can free spool the ...

Lift-Master garage door opener stopped working I have a Lift-Master 1/2 hp garage door opener that was installed when the house was built, circa 1997. It's worked fine for 12 years. Now when I push ...

garage door goes up, but only travels about 12 inches and stops when it comes down TRY HOLDING DOWN THE WALL BUTTON TO CLOSE THE DOOR. IF IT WORKS THE PROBLEM IS IN THE SAFETY EYES. IF THE DOOR TRUELY