Unscrew the trim mounting screws inside the track to remove the casement cover.
Vinyl window stuck closed.
If the sash on your double hung windows is hard to raise or lower the pivot pin may need to be reseated.
When doors become stuck high humidity is often the cause.
Install the new lock per the directions on the package.
Wrap a cloth around a block of wood place it against the window frame at the bottom of one side and tap it gently with a hammer.
This will move any working shootbolts to the open position.
If your vinyl windows get stuck or are difficult to slide open and closed it s time to clean and lubricate the track and liner.
This has never happened before and not sure what to do.
Then using a toothbrush and hot soapy water scrub the track to remove any remaining grime.
Clean the window track by vacuuming with the brush attachment.
Jammed or stuck upvc window shootbolt positions top and side hung windows opening the jammed upvc window moving the shoot bolt roller cam.
Crank open the window until the plastic guide is flush with the track notch.
Now the two front windows with sliders windows are vinyl are stuck shut.
Unstick a stuck window.
3 remove stuck on dirt and bugs remaining in the track with a soft bristled cleaning brush.
Slide a putty knife between the window jamb and casement cover and gently pry.
Use silicone lubricant on the vinyl window.
Although that s rarely the case with double hung windows it s not out of the question.
So if you live in a very damp home consider.
Lubricating your vinyl windows whether they are sliders.
Reduce friction on the window by running a candle stub or bar of soap along them.
Method 1 break the seal all around the window sashes.
It s almost like a vacuum seal has been created maybe from the heat and or humidity.
Put the window handle in the open position.
Open the window and wipe the track trim and sill parts that you could not reach with the window closed.
No amount of physical effort will budge them open without the worry of breaking them.