When you garage door won't work from the remote controls but works properly from the wall console inside the garage you need to check the lock or vacation switch.

The lock switch is used to disable the remote controls. On Chamberlain garage door openers - includes Liftmaster and Sears systems the lock switch is indicated by a padlock. If the system is locked then the green indicator on the console will be flashing or the words "Lock Mode" will appear on the LCD display for Elite and Estate series openers. To unlock simply press and hold the LOCK button for 3 seconds and let go. The indicator should be on steady / Lock Mode text will disappear. Try your remotes as the should work now. The procedure is similar for Genie / Overhead systems but the indicator will go off when locked (instead of flashing).

On most systems the lock switch does NOT disable an outside keyless entry. You may want to test this on your system. When going out of town for an extended period you may want to unplug the garage door opener for added protection. It should be noted that on systems like the Liftmaster 3850 which have a battery backup that unplugging the system is not recommended since the battery would still allow approximately 30 cycles of the garage door.

Instructions for many garage door openers are on our website at www.gdcorp.com/instructions and search for your model opener.

If you cannot resolve the problem yourself and are located in our service area we can schedule a service call.


i have no way of getting in my garage to unlock the vacation mode and i dont have a key?? how do i open it?
If you have what we term a vault garage (ie no side door) then you should have a vault release (aka outside disconnect) which is a lock and cable installed in the top section of the garage door. When you insert the key into this device and turn the cylinder will come out with a cable attached and allow you to pull the manual release just as if you were inside the garage. You can then lift the door manually. If you do not have the vault release then you may want to check for a window to gain access. We have drilled the hole for the vault release and used a hanger to "fish" for the release string with fairly high success. Then you install a vault release to protect yourself in the future. If you have a keyless entry (numeric keypad) the lock switch does not disable the keyless entry on most Chamberlain made openers which includes Chamberlain, Sears, and Lift-Master. Good luck
Hi, I was trying to work this keypad code thing and I accidently locked myself out of the garage. From my research I am on vacation mode. I don't have a door attached to my garage so I cannot access the wall with the whole system. I only have two remotes and keypad outside. Is there anything I can do to open my garage other than breakin?
Hi there to every body, it's my first visit of this blog; this web site includes amazing and actually good data in support of visitors.
If the keypad battery is good and you cannot get it to open the door then you will probably have to break in. On Chamberlain mfg product (includes Liftmaster, Sears and Chamberlain) the vacation mode does NOT lock out the keyless entry. If you do not have a side door you may want to install an outside disconnect (aka vault release) which is a lock cylinder with a cable attached which connects to the manual release on the garage door opener. It is specifically designed for a case like yours. The Liftmaster part number is 1702LM.
The lock feature does not work on my remotes, can,t figure out the problem because it used to work. any suggestion would be appreciated.
Yes! Finally someone writes about garage door emergency release lock.
Spot on with this write-up, I actually believe that this website needs far more attention. I'll probably be back again to read more, thanks for the information!
I have a Sears GDO with a simple one-button wall switch. The wall switch WAS normally steady green. It's now flashing green. None of the remotes work. The outside keypad works and the inside button mentioned before works. Both normally. I've read that the unit is in "lock" mode. I tried holding the green button down for 3, 5, and 10 seconds. No change. Any advice on how to get this out of lock mode?
Rik: Usually if you push the smart button on the motor unit and immediately let go it will unlock the receiver. I assume you have tried to remove power wait and restore which sometimes works as well. Which model opener do you have? If you held the smart button more than 6 seconds the receiver should have cleared it memory. At this point the keyless entry would stop working. If you try a receiver reset you can simply add the remotes and keyless entry back in per the programming instructions. Most Sears model instructions are on our website - simply search for your model number (is should be 139.xxxxxxx) Brad

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