Why do you need an erroneous opening blocker?

An erroneous opening blocker is an important element that allows you to maintain the functionality of the hinge group mechanisms and reduce the risk of hardware breakage. It insures window owners against making mistakes in the process of opening tilt-and-turn sashes. Due to the similarity of names, some customers confuse the lock with a conventional opening limiter, which is a familiar comb, and refuse this important component of the fittings. As a result of such an error, the risk of rapid window breakage increases, so sellers and manufacturers strongly recommend not to ignore the need to install this mechanism.

Erroneous opening blockers

Opening euro-windows at the same time as a window or wide open, jamming of the handle are common problems for owners of metal-plastic profiles. To prevent the doors from twisting, an erroneous opening blocker is purchased. An additional accessory extends the service life of hinges, fittings, and tilt-and-turn transoms, reducing the possibility of their breakdown in the future. By installing a limiter, the risk of unsafe and incorrect operation is reduced by up to 80%.

How to fix the situation

If the window opens in two positions at once, there is no need to try to resolve the issue by applying physical force. This can lead to damage to the window and, as a result, expensive repairs. Sometimes the handle does not jam, but turns freely. This indicates a change in the shape of the splines. You need to move the decorative strip at the end, unscrew the screws and check the condition of the pin. If it is unsatisfactory, the handle is replaced with a new one.

After installation, the window should work fine. If this does not happen, you should continue with independent repairs.

Erroneous opening blocker

Almost all hardware systems include an erroneous opening blocker. It prevents the handle from moving when the sash is in swing mode or ventilated. If the transom was open in two planes at once, the operation of this device will prevent the handle from turning.

To solve this problem you need to do the following:

• Find the blocker. It is located at the end of the sash, next to the handle and is a bar located at an angle of 30° relative to the central rail.
• Move (press) the blocker so that it is in the same plane with the fittings.
• Turn the handle to the horizontal position and close the sash.
• Try to see if the window works correctly in several modes.

These actions with the blocker solve problems with incorrect functioning of the sash in 80% of cases.

Adjust the sash position yourself

Sometimes the manufacturer intentionally or unintentionally does not install a tamper blocker on swing-out transoms. This saving sometimes comes at a cost to the consumer - so plastic windows still need to be chosen correctly. If there is no lock, then opening in two positions at once occurs often. But the handle does not jam.

The transom adjustment is performed as follows:

• The handle moves to the “ventilation” position.
• The door closes.
• The handle is set to swing mode.
• The correct operation of the fittings is checked.

After these steps the problem should be resolved.

Reasons for incorrect sash position

First you need to understand the factors that lead to such problems. In 90% of cases, the reason for opening a window in two positions at once is the incorrect operation of the fittings. The main harness (tires, scissors, extensions) is located at the end of the sash. The counter strips that secure the transom are installed on the end of the frame (impost).

Stages of operation of the fittings for different sash positions:

• Swing opening. When the handle is turned 90°, the strikers come out of the fixation of the hooks and the transom opens.
• Ventilation. The handle moves another 90°, the lower hook remains in the horizontal striker, providing support. The sash tilts to the distance of the upper scissors.
• Micro-ventilation. A special limiter has been added to the design, allowing the transom to be opened in ventilation mode by 3-5 mm.

When working in each of these positions, the elements may not function correctly.

What it is

Blockers are often confused with an ordinary limiter due to the similarity of the design features of the parts. By refusing to purchase this component, owners of Euro windows shorten the service life of the metal-plastic profile and quickly lead to wear.

Like a microlift, such an element prevents incorrect movement of the lock in the “ventilation” or “wide open” mode. When the transom opens in both positions, the mechanism acts as a barrier.

It is presented in the form of a bar installed at an angle of 30 relative to the tire in the center. When the top hinge is not connected to the frame, the window system is set to ventilation. In the absence of a locking mechanism, the only mechanism in the scissor design is released when the lock is turned.

Incorrect opening will lead to breakage of the lower hinges, which bear the entire weight of the device. That is why the technoblock is a necessary measure to eliminate the risk of such a situation.

Modern manufacturers integrate clamps into another profile part, a microlift. It is designed to smoothly lift transoms. This “invention” helps to combine several functions in one device.

Locking the handle when the sash is closed

Here the reasons are approximately the same as in the case of an open sash - temporary or permanent failure of the lock, gearbox, handle. But getting to them is much more difficult. To open such a door, do the following:

• Use a sharp chisel or a hard knife to pick up the glazing bead. Start dismantling it approximately from the middle of the side parts.
• After removing the side beads, remove the bottom one, and then, holding the glass unit, remove the top one.
• Tilt the glass unit towards you, remove it and place it on the floor. Be sure to use rubberized gloves and moderately soft glass coasters.
• Press the lock riser of the closed sash towards the hinge riser. As a rule, this can be done simply by hand - alone or with an assistant.
• Open the sash, take the measures described above to eliminate the cause of the window jamming.

Important: when “unpacking” the window yourself, be extremely careful, since it can easily be damaged - scratched or broken by the profile, glazing bead, or broken glass unit.

Balcony door jammed

We are talking about doors, although in terms of design they have much in common with plastic windows when it comes to modern models. The mechanism has an additional latch, which must be taken into account when removing a jammed balcony door.

First you need to open the door leaf to gain access to the mechanism. For this:

• The handle turns exactly horizontally;
• The handle is taken by the base and slightly raised up;
• The raised door jerks towards itself. You need to act carefully, but sometimes quite strongly.

This method is universal for many problematic cases associated with opening a stuck door. But it is strongly not recommended to constantly resort to it, as this will lead to more significant damage.

After the door has been opened, you need to immediately begin adjusting the latch. To do this you will need:

• Using a Phillips screwdriver, unscrew the self-tapping screws on the counterplate halfway;
• Lower the latch 2-3 millimeters lower so that its central part coincides with the pin on the door leaf;
• Fix the strike plate.

This procedure will help temporarily solve the problem associated with sagging door leaf. But the canvas will sink lower and lower. So you won’t be able to use this method all the time. The door will inevitably jam again. The best way out would be to immediately contact a specialist so that he can check whether the problem is really a sagging door, or whether the frame is deformed, or whether the problem lies somewhere else entirely.

Cable lock

Among children's locks for plastic windows, many consumers prefer a lock with a cable, which is suitable for any type of window system, including aluminum structures. The device consists of three parts - the cable itself, the main element with a lock that is attached to the fixed sash, and a hook located on the movable sash.

The window lock allows the sash to move even in the closed position of the lock, but the amplitude of its opening is limited by the length of the cable. Thanks to the flexibility of the cable, you can open and close the doors multiple times, doing this without unnecessary noise and without much force. To fully open the sash, you need to use a key that allows you to unlock the cable.

Installing a child lock on PVC windows with a cable is carried out in several stages:

Principle of operation

The operation of the blocker allows you to change the position of the open sash without damaging the profile. To open them wide, you must first close them, manipulate the lock strictly at the right angle, and then open them.

At this point, the tilt opening mechanism risks being damaged, for example, activating both opening modes. This causes the heavy sash at the bottom to sag on the hinge and damage the fittings.

A high-quality window lock and three simple steps can solve the problem.

1. Pressing or moving the blocker all the way - as a result, it should be in the same plane as the fittings.
2. Rotate the handle to a horizontal position to close.
3. Testing the performance of a part of a window unit in all modes (hinged, “ventilated”, etc.).

Modern imported premium fittings are already included in the package of window profiles. It offers ergonomic design, safety, energy efficiency, durability and burglary resistance.

Adjustment

In cases where the problem is caused by something more serious, it is worth paying attention to the gap between the active sash and the impost, which is clearly visible when they approach each other. If there is a misalignment, you can try to adjust the position of the sash. The lower loop, equipped with two adjusting screws, is responsible for it. One of them works in the horizontal plane, the other in the vertical.

After removing the decorative cover from the hinge, take a Z- or L-shaped torx or 4mm hex key and try to adjust the window. Depending on the manufacturer, the hinge design may differ slightly, for example, in the shape of the slots of the adjusting screws. Adjustment usually gives an immediate, but not always lasting effect.

Important: do not overdo it during adjustment, because other gaps will also change and become narrower.

What to do if both methods of opening the sash are activated

Even if a blocker for the wrong opening of the window sash is installed, problems sometimes arise literally out of the blue. This usually happens due to haste or carelessness. When the sash is not pressed sufficiently against the frame when moving the system from the tilt to the swing position, the lock does not have time to operate, the handle does not fix the scissors and gives the command to open wide. It is at this moment that the fittings break. The owner of the window does not have time to notice how the sash first falls with all its weight onto the lower hinge, breaks it, and then hangs on the scissors and bends them. A good reaction can save the situation. If the sash is opened incorrectly, it moves along an unusual trajectory. If you take the necessary actions in time without applying excessive efforts, then negative consequences can be avoided:

• you need to have time to catch the sash as it moves down;
• then press its upper corner to the hinge on the frame;
• then press the lever or button of the lock, which is located on the side near the handle;
• simultaneously with pressing, it is necessary to move the handle from the top position (thrown back) to the middle position (open);
• then the sash is closed, pressed and fixed by moving the handle to the lower position.

A similar algorithm of actions is recommended for windows without a blocker. However, in order to avoid such situations, it is recommended to equip the structures with a microlift with a blocker, more details about which can be found on OknaTrade. Installation of this mechanism can be done during the operation of the windows. It is important to take into account that for some brands of fittings, the microlift with a blocker can be permanently attached to a separate element of the harness. In this case, you will have to completely change this part of the locking mechanism. However, even this option is much more profitable than expensive repairs of a broken window structure.

Reverse opening function

Over time, security windows become more advanced. Hardware manufacturers are constantly developing new products that make using windows more convenient. One example of a successful solution is windows with a reverse opening function. The name of this function differs depending on the manufacturer. For example, in the Roto line of fittings it is called TiltFirst, the Siegenia company supplies this fittings under the TBT (Tilt Before Turn) line, Maso has Tilt First Striker, etc. But in general cases, translated into Russian, this function means “first tilt, then open it."

The operating principle of this type of window fittings is extremely simple - the manufacturers have swapped the opening modes. When the handle is turned to the standard 90°, the active sash does not swing open, but tilts back. To fully open the window, you need to turn the handle 180°. With this simple solution, the engineers achieved a double effect - they made the tilt-and-turn window more convenient and safer.

Using PVC Child Lock Handle

Parents see one of the options for solving the problem of child safety on windows by removing the standard plastic handle using a screwdriver. This solution is budgetary, but non-standard. According to most people who have tried this method, the unscrewed handle also causes a lot of problems after some time. To overcome this difficult decision, we can suggest purchasing inexpensive but effective protection in the form of a handle for a window with a built-in lock. This type of limiter is the most budget-friendly and will help protect your child from falling out of the window. The handle is installed in the same place where the standard handle was. In order to be able to turn such a handle, you must insert the key into the hole in the lock. Installation of handles with mortise locks does not require special preparation and takes no more than 15 minutes. A screwdriver should be used during installation.

Erroneous action blocker with microlift

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