Without power (as during an outage) can the garage door be easily opened and closed?
1631073
The 3800 has a simple , spring loaded cord that you yank to disengage the drive. The door lifting is up to you at that point and is as difficult/easy as it was prior to installation. You yank the cord again to reengage the drive. This is easier than on a chain driven opener.
1631074
yes, pull the release cord open the door by hand, door should be balanced and you will have little trouble.
1804301
Yes, just reverse the wiring. Use the N.O. (normally open) instead of the N.C. (normally closed) circuit. Though you may want to use a switch to turn the power off when you want it unlocked. Then turn the switch on to restore power and lock the door.
16025
Yes, Just as long you have internet access. It uses a Cat5 connection to your router. Install the App to your smart phone or device, go through the setup and you're in. You will have alerts and logs when your garage opens or closes, you also can control open/close from anywhere in the world. This is an awesome product, I love it! Note if power loss or internet goes down, none of the features will work.
929583
We've had a couple power outages since installing the unit, and it retained the last state in each instance. So, no programming needed.
1611378
Short answer is no. You could disconnect the power to it. I keep it hidden, but if the need arises, I can reach and hit the reconnect button.
1598371
Not practical. You'd have to have an opener that worked by having 12VDC applied across a set of contacts (not likely). You'd have to toggle the ON , then OFF every time you wanted to open or close the door since the RC switch stays on or off depending on the last command it got. You'd also have to have a 12VDC source to power the receiver. Finally, I bought 2 of these switches and the same remote works either one of them, so there is no security. Hard to beat a garage door opener with a remote for opening a garage dooor.
831603
No, this is normally closed and then open when power is applied. I'm very happy with the two of them that I bought.
1965792
Why would you want to? Switch off (open circuit an remove power) is the same as a power outage. Light would come on until battery dies.
851659
There is an external battery pack that connects from outside in case the batteries die. The small cap below the keypad unscrews to provide access to the keyhole (so you can also open the door manually with a key if necessary).
1107726
You can purchase the gate opener with the battery and solar option but I have an automatic generator at my home so if the power goes out the generator cuts in so the gate is still powered.
487191
Yes-manually ... there is a red 'T' handle on a short piece of rope you pull to disengage the chain ... you then open and close the door like you did before you had the opener attached. It is easy to re-set once the power is restored. My wife just had to do this this past weekend when the power was out and I was at the Fire Hall.
59200
I don't think so, I have it installed to be turned on/off using the switch at the door.
1520786
I was told by Sentry if the lock fails, call a locksmith to cut the door off. Probably the same if electronics melt. I suggest U call Sentry
836470
No it cannot. Needs to plugged in to keep it charged and ready to use if you were to loose power that way you would be able to open close door on a limited basis until power was back online.
836475
No. The garage door unit operates off of standard 120 volt house current under normal operating conditions. At this time the battery is being constantly charged. When there is a power outage, the battery takes over to open and close the garage door up to ten operating cycles.
1082943
Yes. Make sure you have all power removed (breaker open) if you don't have certified electrical safety gloves when removing the cover.
548853
No. It does not have battery backup. During a power outage, it will need to be manually disconnected to allow opening or closing of the garage door.