"Caecilius" wrote in message
...
On Mon, 13 May 2013 13:18:04 +0100, "Gazz" wrote:
With the electric opener fitted, the door can not be opened manually
against
the motor

Does that mean if the electric opener fails, or the mains trips out,
there's no way to open the garage door?

That's OK if there's another way in, like a door round the back, but
if the only way in is through the up and over door, it sounds like a
potential problem. Especially if the CU is in the garage like mine is!

Naaar, there's a cord you pull that releases the sliding carriage from the
track, which is what the door is connected to and is pulled along by the
chain or belt by the motor, then you can open the door as if it didnt have
the electric opener fitted.

If there is a way into the garage via a side/rear door, you just leave the
cord dangling for the day you need to use it, however if there is no other
way in, then the kits come with an external release.

It's a barrel lock, so a hole is drilled in the door and the lock pushed
through, then the nut put on the back and tightened up, connected to the
back of the locks barrel is a steel cable, you snake it up the door, canopy
arm if used etc, and connect the other end to the sliding carriage release
lever, secure it neatly with electrical tape the instructions say,

To operate the release, you insert the key in the lock, turn it and pull,
the barrel comes out with the cable attached, then you give the cable a
sharp yank, which breaks the tape and allows you to pull on the cable to
release the carriage from the track and open the door.