Problem with Rehau Heritage sash window

[Bratman91]

I had Rehau Heritage uPVC double-glazed sash windows fitted in 2006. One of the windows will not remain in the raised position. The window frame has a thin nylon cord running down each side and fastening to the bottom of the window. On one side, the cord is very tight and the tension is pulling the window to the raised position. On the other side, the cord is dangling loose. I assume that this cord should go to a spring so that it is under tension. However, the cord just seems to disappear at the top of the frame and there is no obvious way to get at the spring. Every contractor I have contacted in my area (Gloucestershire) is either unfamiliar with the design and contruction of the window or does not want to try and fix the problem. Does anyone have any advice as to how the window is constructed or how to get at the spring?

The orginal installer no longer operates in my area.

 

[Gazman16]

I expect the top stops just pop off to revel the spring ratchet. Im not familiar with the rehau ones but they are mostly similar. You could always email Rahau and they might be able to send you instructions https://www.rehau.com/gb-en/pvcu-wi...e-curtain-walling/windows/rehau-heritage#tab5

 

[Bratman91]

Many thanks for your reply. I tried Rehau a few days ago and they said that they just orovide the plastic parts and then installers actually assemble the window (seemed a bit odd!) and that I would need to contact the installers. The installers had no idea how they had assembled them as it was 12 years ago and everyone had changed. The brochures on the Rehau web site do not describe how the balance system works.

 

[Gazman16]

PM me your email address. I have some instructions for another make that maybe similar

 

[Bratman91]

I am not a frequent user of this forum and do not know how to send a PM. Can u say how? Thanks.

 

[Gazman16]

Top right corner click inbox, Start conversation.

 

[Gazman16]

Email sent. Hopefully it is a similar system