Window won't tilt – what to do?
Difficulty: Easy · Time: approx. 5 minutes
You want to air the room, but the window handle won't turn upwards any more – or the sash is suddenly hanging askew in the frame? Don't panic: it's almost always the built-in safety mechanism of modern tilt-and-turn windows, not a real defect.
Most of the time the so-called anti-mishandling device has been triggered – a small spring-loaded plate that stops the handle from being moved while the window is open. You can release it in under a minute, no tools needed.
What you'll need
- Just your hands – no tools needed
- Optional: a second person to press the sash against the frame
- Optional: a torch to get a better look at the fitting
- Optional: a drop of light oil to care for the fitting afterwards
Step by step
- 1
Don't force the handle
If the handle is stuck, ease off straight away – using force only bends the fitting, the metal mechanism inside the sash. Take a close look instead: is just the handle jammed? Or is the sash already hanging askew, held only at one bottom corner? That decides which step comes next.
- 2
Find the anti-mishandling device
Look at the narrow edge of the opened sash, right below the handle: there sits a small spring-loaded lever or an angled metal plate – the anti-mishandling device. It triggered because the handle was moved while the window was open, and now it's blocking the handle.
- 3
Press the catch and turn the handle
Press the sash gently against the frame as if you were about to close the window. At the same time, push the catch towards the seal with your finger – flat against the sash – and slowly turn the handle to the position you want. It should now move freely again.
- 4
Hook the sash back in at the top
If the sash only hangs at one bottom corner, the so-called scissor stay at the top has come unhooked – the arm that connects sash and frame. Press the top corner of the sash firmly against the frame and set the handle horizontally to 'open' until the stay clicks back in. Keep the anti-mishandling device pressed while you do it, or the handle will lock again.
- 5
Test all positions
Move the handle slowly through every position: closed, open, tilted. If everything runs smoothly and the sash sits straight in the frame, the problem is solved. A drop of oil on the moving parts of the fitting keeps the mechanism running freely for good.
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Upload a photo →Frequently asked questions
- What is the anti-mishandling device actually for?
- It stops you from moving the handle while the window is open. Without it, the sash could come out of its turn and tilt bearings at the same time and hang askew in the frame – which is exactly what happens when the catch gets tricked.
- My window hangs tilted and open at once – is it broken?
- No, that's the classic case of the unhooked scissor stay. Press the top corner of the sash against the frame, set the handle to 'open' and let the stay click back in – just like in step 4. After that the window works perfectly normally again.
- How do I stop this from happening again?
- Only move the handle when the sash is closed or pressed firmly against the frame – and explain that to kids and flatmates too. Oiling the moving parts of the fitting once a year keeps the mechanism smooth on top of that.