Query r.e. drainage hole in a window

[Elizabeth19]

Good evening,

I've just got a question about drainage holes on some windows. I've been trying to find information about it online but haven't found anything so thought I'd try you intelligent folks here.

I've noticed that the screw on the hinge mechanism on some windows is rusting, so is clearly not stainless steel. On these windows, there are no drainage holes. But I'm wondering if the rusting is a symptom of the water not draining properly out of the windows.
Most of the windows with visible drainage holes don't seem to be having any issues, whilst there's only one without a drainage hole which has no rust issues.
Could it be that the hinge mechanism has been fixed over the drainage hole and is blocking drainage?
I've read that drilling a new weep hole could void the warranty but I don't know if installing a new hinge mechanism would be possible.
Am not an expert, so would appreciate your views.

Elizabeth

 

[crank39]

If they're still under a warranty then could you not get the company back?

There could be a drainage slot hidden under the ramp thing, it's called a run up block and it locates the opener square in the hole when you close the window, unscrew the block and pour a cup of water into the track where the hinge is located and see if water drains away, you should see it drain out over the cill outside

 

[Elizabeth19]

Thanks a lot, that's really helpful. In practice, do you think the run up block can be adjusted so it's not blocking the drainage slot, or would another slot need to be drilled in?

 

[crank39]

They aren't adjustable, just poor foresight from the fabricators really if they've fitted it blocking the drainage slots, just remove the block as it won't have a detrimental effect to the windows operation