How to replace the magnet on your window

The magnet should be located on the headlock of your window as shown below. If your window has two headlocks, please locate the magnet on the right hand side headlock, as viewed from inside out. 

Open the window manually, by pulling the ventilation bar (handle) at the top of the window downwards. The magnet then simply clips onto the vertical metal bar which extends to the back of the ventilation bar.