A properly working plastic window is necessary to seal the room. With normal adjustment, the fittings press the shutters against the frame, and they are controlled by the handle. But it happens that the window does not close. It is important to determine the cause of this phenomenon, and then fix the problem. Read more about this in the article.
Sash skew
Due to the skew, a gap may appear between the sash and the frame, into which air from the street will enter. This defect does not allow the sash to fall into place. She will cling to the side and bottom protrusion of the frame.
If the plastic window does not close, you need to change the angle of inclination of the sash, move it in a vertical or horizontal plane. To do this, there are adjusting screws located on the hinges of the sash. From them it is necessary to remove the protective pads, under which there will be holes for the hexagon or key sprocket. During the rotation of the screws, it is necessary to obtain the normal closing of the sash and the elimination of the gap. The bottom loop is adjusted in 2 planes, and the top can be without adjustment or move left and right.
Loose fit to the frame
The window does not close when the sealant loses its elasticity, and also due to a failure in the adjustment of the clamping eccentrics:
- Seals must be washed periodically and treated with silicone grease. If this is not done, they lose their elasticity after 5-6 years. Then they crack and let air into the room. If this happens, you should buy and replace the seals. To do this, remove the old products, clean the grooves, and then install a new gasket.
- The eccentrics that are on the ends of the open leaves can be fixed in 2 positions: “Summer” and “Winter”. In the first case, the clamp is not very tight, and this may not be very convenient in winter. To set the eccentrics in the required position, you need to rotate them 90 ° with pliers, an asterisk or hexagon (the choice of tool depends on the type of hardware). This allows you to get a tight clip. When the cold ends, you need to put the eccentrics in the same position.
Faulty window in hinged position
If the window handle does not close after ventilation, a possible reason is the exit from the grooves of the hardware parts, which are called “scissors”. This element serves to open the sash in ventilation mode. The handle will be locked. With the window tilting and swinging open at the same time, there is a risk of breaking out the lower loop, since weight only affects it. Do not throw the sash in this form, it must be covered. If the handle does not turn well, do not apply much force, otherwise it can lead to more damage.
How to fix this defect if the window does not close? The work is carried out according to the following instructions:
- The shutter must be removed from the frame. To do this, remove the overlay from the upper hinge and pull the hinge pin down with a knife or screwdriver. Then they pull it out with a hand or pliers.
- Then you need to remove the sash from the bottom hinge. To get this, you should slightly raise it up.
- The shutter must be placed on the floor with the bottom.
- It is necessary to find the grooves into which the “scissors” can enter and install them. To do this, click on the end of the sash on the handle rotation lock.
- Then it’s important to check how the pen works. It should be easy to turn.
- The shutter should be put in place.
In some cases, the flying “scissors” are installed without removing the sash, if there is a place at the top. If the handle does not turn and the plastic window does not close, it is necessary to fix the problem carefully so as not to aggravate the situation.
Opening the sash at the same time for swinging open and for ventilation
The window does not close often because the handle is in the “Open” position, and it is moved up during the airing mode. It turns out that the sash will recline and swing open. The handle locks. This does not mean that the window has broken. Just the sash is located in a position in which it cannot be closed.
The problem is fixed as follows:
- The handle is upright. It is necessary to press the sash against the frame in the upper corner. It will be installed in its place.
- Then press the lock on the sash.
- Move the handle to the open position.
- At the end, the sash must be closed.
Malfunction in the Closed mode
If the window handle does not close to the end in closed or open form, then this may be due to the delayed actuation of the sash blocker. It is necessary to press it by hand, and then put the handle in the usual position. This will close the window normally.
It also happens when the blocker misses the stop with which it should engage. This is due to the thermal expansion of materials. Unscrew the stop from the frame, and then put a gasket under it. Then everything is screwed into place. If there is a displacement of the sash, it is necessary to displace the stop in a vertical position.
The pen does not work
If the handle does not turn, the window does not close, then the reason for this is usually the drying of the grease on the hardware. If the design works for several years, then this problem will be natural. In this case, it is necessary to lubricate the fittings using special holes located on top and on the sides of the sash.
Any lubricating fluid or oil is suitable. But it is advisable to use a silicone tool. After that, turn the knob so that the grease is evenly distributed. It usually helps if the reason was this.
Complicate the situation can repair, during which the doors are clogged with dust and debris. In this case, lubrication will not be the solution. It is necessary to completely disassemble and wash the fittings. To do this, it is better to call the masters. It is important to check whether the handle functions with the sash open. If in this case the plastic window does not close well, then the reason is connected with the breakdown of the fittings. You will need to call a specialist. If the window is functioning, then it is necessary to check whether the eccentric of the leaf end abuts against the clamping part on the frame. This usually serves as an obstacle to closure. It is necessary to shift the platform or window sash up or down.
Handle breakage
If the window does not close completely, then the handle may also be damaged. Or she might just be blabbed. It is necessary to tighten the handle fasteners. To accomplish this, the decorative cap at the base rotates 90 degrees. There are 2 screws, which must be tightened with a screwdriver. Then the plug is installed in its place.
If the handle breaks, unscrew the retaining screws, and then remove the old handle from its place. Installing a new part is easy. It must be placed in the hole, and then tightened with screws. You will have to change the fittings even if you want to install a handle with a lock.
Prevention
To avoid any problems with the window, you must follow simple recommendations:
- High-quality installation of a double-glazed window is important. This means that both corners should be on the same level. If there is a skew, then due to the high pressure, the frame will be bent, because of which breakages and loops occur.
- During installation, the product must not be subjected to mechanical damage.
- It is advisable to install the window on mineral glass wool.
- It must be remembered that the width of the window sill must be such that it does not block the passage of heat from the battery.
Proper operation
It is also necessary to adhere to the rules for using windows. Some simple tips will help in this:
- Do not use a lot of force during closing, as this may damage the handle.
- It is forbidden to hang any weight on the handle.
- During opening it is not necessary to press strongly on slopes.
- When the wind is strong, the window must be closed.
- Damage should not be tolerated.
- There should be no excess objects between the frame and the sash.
- The leaf should not be open.
- Moisture control is important - no more than 50%.
- Every day, the sash must be opened for ventilation.
Care
No less important is the care of plastic windows. It is as follows:
- In the double-glazed windows there are channels to remove excess moisture. They are located at the bottom of the frame. It is important to monitor the status of these channels. They should be regularly cleaned of dust and dirt.
- Fittings must be cleaned only with special tools that will not be harmful to anti-corrosion coatings. Do not choose alcoholic solutions, liquid for dishes, nail polish removers or gasoline.
- Grease the shelf life of the product will allow lubrication of fittings (2 times a year). In addition to silicone oil, you can use machine oil.
- It is important to control the quality of fixing hardware to the frame, as this determines the smooth functioning of the window and its serviceability. To do this, you need to check the strength of the landing screws in plastic. If they are weakened, they are pulled up.

Thus, the plastic window may not close for various reasons. Many problems can be fixed by yourself. If it is difficult to deal with this problem, then it is necessary to call a specialist.