Sliding door runner identification & replacement

[Niscars]

Hi, the sliding balcony door in our new flat will only shut if the door is lifted very slightly whilst turning the handle to engage the closing action.
It looks like one of the rollers / closers has dropped and the bottom of the door catches on it as the door moves into the frame to close. I have no idea of the door make, but I am hoping that someone on here will recognise the roller mechanism to assist in getting a replacement if possible.
Pictures below.

Possibly GROUPCO ?? (written on another part of the door).

Thanks,
Niscars

IMG_3576

• Niscars
• 28 Nov 2020

IMG_3578

• Niscars
• 28 Nov 2020

 

[crank39]

So it looks like a tilt and slide or lift and slide, the hole you can see where it pivots is that an Allen key hole, turning it to screw in or down has the effect of pushing the door up

 

[Niscars]

Good call, it's a flat head screw but I've got it as tight as I can but doesn't seem to make any difference.

IMG_3582 2

• Niscars
• 28 Nov 2020

 

[crank39]

Ok so try loosening it, does it lower the door and does the gap between the lever and bogie wheel reduce, it may be that its already adjusted up to its max height but unlikely if this is the first time its been adjusted, if the gap does reduce at least we know that is the adjustment

 

[Niscars]

Ok, tried loosening it and it comes all the way out without any noticeable change to the roller mechanism.

IMG_3584

• Niscars
• 29 Nov 2020

Adjustment screw ??

Looking closely at the two rollers, it looks to me that the one that is catching (RHS) is slightly bent (pictures below).

Ok one

IMG_3589

• Niscars
• 29 Nov 2020

LHS Roller - Ok.

Dodgy one.

IMG_3590

• Niscars
• 29 Nov 2020

RHS Roller - Bent.

I think replacement, if available is the only option??

Regards,
Niscars