I have a sectional garage door it is about 3 meters wide not sure how old as it was here when we moved in.
It has just stopped working no light working nothing it is a ultra Model. I fit roller garage doors but never a sectional one.

Dai, March 2016

Why not do a Google search for make and model of sectional door you have. There may well be installation instructions you can download.

here's a couple of makes I found:

http://www.hormann.co.uk/products/garage-doors/sectional-garage-doors/

http://www.teckentrup.co.uk/products/carteck-garage-doors/sectional-garage-doors/

https://www.garador.co.uk/garador-range/sectional-doors.aspx

XXX, April 2016

check if power going to the door control unit,if you fit garage doors you should know this check fuse in control unit,(turn power off first ) check circuit breaker in garage db unit (fuse box)
not a hard prob to find

gts, March 2016