Up and over door issue - any experts?

[SuperPav]

Any garage door pro's here? I will be asking the dealer I ordered the door from, and potentially Hormann as well, but is there anything obvious I've overlooked before they tell me "we didn't install it therefore we can't help you"?

 

We've just finished installing and adjusting a Hormann up and over N500 door (for infill). It's 4250w x 2000h, hooked up to a Supramatic E (series 4) operator.

 

Installation looks accurate, i.e. checking all levels/square etc. everything is fine. However, the door seems to "catch" quite a bit at the point where it hits the plastic frame guide at the closing end of the operation. This is enough of a "tight" spot that we cannot set up the electric operator as it abandons the learning cycle as it senses this as an "obstruction". Even on the couple of occasions where it did complete the learning cycle, it would stop and not operate at that point after, with the "03-obstruction detected" error.

 

I cannot see ANYTHING that can be adjusted to make this better - the roller arms are fixed to the frame (no adjustment), the door is fixed to the arm and the rollers.

I've double and triple checked the manuals start to finish on both the garage door and the operator, everything looks OK.

 

The door currently just has some OSB on the outside, so certainly not a "over-weight" situation. Springs have been adjusted in line with the manual so the door sits half way up on its own. The rest of the opening/closing cycle I can do easily by hand, so it's well balanced, but just that bit that catches. The "guides" that it hits aren't adjustable, I tried loosening them and packing them out a bit to see if that makes any difference but it just moves the problem an inch further down the travel.

 

Both sides of the door have even gaps, and both touch the stops at virtually the same time, so it's not uneven side-to-side.

 

Attached is a video of a learning cycle, you can see it manages the first one just about, but on the second one aborts at the point it "snags". Sorry for the quality, had to compress it down to 5MB to attach...

 

At wits end with this thing 🤬.

 

I was expecting a bit more of a smooth operation on a £4k semi-commercial level door! 

 

 

[markc]

Shouldn’t catch like it does, probably needs the block moving out a bit