Autosleeper mesh blind spring problem

[johnalves]

The spring on one of the mesh (flyscreeen) blinds seems to have broken. It will roll up OK but then falls back down.
Autosleeper Bourton 2018

I can't see any obvious way to get to the mechanism which seems to be hidden within the window frame

Anyone know how to fix this please?

 

[bigwood]

Not sure about the Bourton window blinds but the ones in our Autosleeper Rienza are at the back against the wall. You have to take the window surround out completely. Not an easy job because the top row of screws are under the top lockers.
The fly screen on ours let go with an almighty bang because the plastic clip that holds the roller under tension broke. Re tensioning the roller and fitting a new bracket caused me to slice my finger open when it slipped.
I could be completely wrong with this because our Rienza is a lot older than you’re Bourton. The Autosleeper Owners forum has been a great source of help with a lot of repairs.