16-05-2016, 10:29 PM
I have just purchased and fitted a Chamberlain ML700EV kit. This is for a single GRP retractable door. Previously it was fitted by the house builder with a Beidi Intelligent 800 device, which konked out after 5 years.
I was able to re-use the mounting points on the lintel and the top of the door, so the kit was easy to install.
I tightened the spring on the toothed belt until the socket would no longer grip the nut because of the exposed thread. This seems to be around "halfway" as per the video and the belt is under good tension.
The door raises to about 20 degrees and then stops, I assume because it is sensing difficulty/blockage.
If I support the door with my hand, it will power past this imaginary obstruction and on to the fully open position.
Advice appreciated.
I was able to re-use the mounting points on the lintel and the top of the door, so the kit was easy to install.
I tightened the spring on the toothed belt until the socket would no longer grip the nut because of the exposed thread. This seems to be around "halfway" as per the video and the belt is under good tension.
The door raises to about 20 degrees and then stops, I assume because it is sensing difficulty/blockage.
If I support the door with my hand, it will power past this imaginary obstruction and on to the fully open position.
Advice appreciated.