Restoration of rear window heating filaments. Shamanic Methods

Perhaps you will be surprised by the topic of today's article, because it is summer in the yard, and the weather is replete with sunny hot days. But this feature is relevant at any time of the year. Let's talk about heating rear window. For those who think this is absolutely unnecessary in the summer, let's say that you probably don't drive much during the rainy season.

But this is where misfortune comes into play, Mr. Murphy comes into play with his notorious "laws of meanness." It's raining outside, and the glass heating has stopped working, and the humidity in the cabin is increasing, and visibility is decreasing. We urgently need to repair the heating of the rear window of the car. The reasons for such an unexpected trouble can be a variety of actions, starting with the unprofessionalism of the tinting studio service workers, ending with the pranks of the kids in the passenger seat.

Rear window heater: how does it work?

Heated rear windshield of the car perfectly copes with the problem of fogging and does not dry out the air in the cabin. Regarding thawing glass in winter, the advantages are obvious. Automotive glass evenly gets rid of icing by the time when it is already necessary to advance. The air from the heater has just begun to warm up, and the rear window is already clean, dry and transparent.

Rear window heater: what is it and what is it for?

The most effective fighter against fogging car windows is heat. How does the heated rear window work? The windshield is heated by directed warm air currents. The rear window is heated by small heating elements powered by electrical energy. Metal tracks with high resistance in the form of multiple thin ribbons are attached to the glass itself from the inside (from the passenger compartment). When it passes through Electric Energy, heat is released. As a result, the glass heats up and the water evaporates. After a few minutes, the glass becomes transparent again.

In order to successfully diagnose malfunctions and repair the heating of the rear window of the car as professionally as possible, it is necessary to study wiring diagram connect heating elements and understand its working principle.

The image shows a typical scheme for connecting heating to a car's electrical wiring. Let's take a look at how it works together. Power comes from the "+" terminal battery, passes through the ignition switch, fuses and is fed to the heater controller and relay power contact. The battery terminal with the “-” sign is connected to the car body, as is one of the heater terminals.

When the heater is turned on, the voltage goes to the relay winding, which is triggered, the power contacts are closed and the relay outputs 30 and 87 are interconnected. The current goes to the heater, flowing through parallel-connected threads, and then through the car body again goes to the minus of the battery.

What can be faults

Basically, car owners do not bother with what and how in this rear window heating device until it fogs up or becomes covered with an ice crust. Here, with a habitual movement, the heating power button is pressed, five minutes, ten, fifteen minutes pass, but there is no result: the glass has not become more transparent at all, or the review has appeared only in some part. Here and measuring instruments none will be required to understand that a car rear window defroster repair is required.

Please note that the heater only turns on when the key in the ignition is turned to the "ON" position. In other vehicles, the heater only turns on when the engine is running. This is done in order to avoid premature discharging of the battery. Depending on the car model, the rear window heater can consume from 10 A to 25 A of electric current. For you to understand, two car lights consume 10 A.

Rear window heater does not turn on

If the lamp on the heating button does not light up in the active state, the button itself is most likely faulty or the fuse has blown. If the light is on, but the filaments do not heat up, then the reason lies either in the relay or in the connectors for connecting the device to the on-board electrical wiring. If this case takes place, then according to the automotive documentation, you should determine the place where these parts are located and replace the non-working element. It is not always possible to quickly find the mounting location of the relay, but there is one way to check its performance indirectly. We will talk about this a little later.

Rear window fogging up slowly

Sometimes it happens that after the heater is turned on, the glass starts to sweat, but very slowly. If the weather is frosty outside, then the reason may lie in insufficient contact of one of the connectors of the electrical circuit. As a result, contact resistance increases, less current flows, power decreases, and the filaments warm up more slowly.

To check this malfunction, you need to take a multimeter and measure the voltage at the heater input and battery terminals. The difference in results should not exceed one volt.

Horizontal streaks of fog remain on the rear window

And, perhaps, the most common malfunction of the rear window heating system of the car is the breakage of the threads attached to the glass itself. This malfunction is visible to naked gas, since the glass in the place of the defective element is either misted or not thawed (depending on the time of year).

Tracks that conduct current are easily destroyed even with a slight mechanical impact. Therefore, you can not clean the glass with a scraper, only a soft cloth. Also, if you are sometimes transporting long or oversized cargo, they must not rest against the rear window.

Diagnostics and repair

It is not difficult to determine a damaged heater thread, as you already understood. Therefore, before you fix the rear window heating, you need to count all the threads from top to bottom and remember which ones are faulty. So further, with a visual inspection, it will be easier to find the desired thread. But the gaps are sometimes just microscopic. A voltmeter or multimeter will help here. To quickly find the problematic thread, you need to study the device of the rear window heater.

Ways to find a problematic thread

If visual signs of a break are not observed, for example, if a break happened at the terminals, then you can resort to the good old folk methods. It is remarkable that every motorist, with the slightest effort and expense, is able to find the place where the heater threads break.

visual diagnostics. If the rear window is fogged up, turn on the heater. At the place where the threads break, it begins to sweat almost immediately, when the rest of the area of ​​the damaged element does not warm up.

Using a voltmeter - the first way. Turn on the ignition and then the heated rear window. Put one probe of the device on the mass of the car, wrap the second one with foil and move it to the center of the heating thread. The voltage should be no more than 5 V. Where it drops to zero or jumps to twelve, there is a break.

Using a voltmeter is the second way. Attach one probe to the positive terminal of the heating element, and move the second along the thread from the side of the negative terminal. In a place where the voltage drops to zero, repair of the heated rear window is required.

With an ohmmeter. It is better to take an analog device with an arrow. Turn it on to kilo mode. Attach the probes to the opposite terminals of the system. Soak a piece of cotton wool in distilled water and slowly run it over the thread. In the place where the arrow of the device twitches, there is a break.

That's it, diagnostics done. Now, inspired by your successes, you can take on the repair of the heated rear window with your own hands.

We carry out repairs

There are many options for repairing the rear window defroster. The same can be said about the materials used and the techniques used. In any case, you are free to choose the way repair work. Only one thing must be remembered, in any case, the connecting points of the heating system must always be cleaned and degreased if soldering is required.

1. How to fix the heated rear window with a repair kit? Many car rear defroster repair kits have similar features. With their help, you can restore up to ten centimeters of a heating filament that is damaged. The repair kit includes: templates with threads and a bottle of thermally active polymer resin.

Determine the location of the broken thread and turn off the heating device. Remove the protective film from the template and attach the thread to the torn area. Use a brush to apply the polymer material to the area to be repaired. When dry, repeat a few more times. Remove the stencil from the glass and do not start heating for 24 hours.

2. How to repair the rear window defroster with conductive paste? It is applied to the places where the threads break. At the same time, grab the torn ends on both sides, 2 cm each. The paste should dry overnight. You can use a hair dryer to speed up the drying process.

3. Restoration of tracks for heating the rear window using folk methods. In principle, they themselves do not differ from each other, only there is a difference in the materials used.

Paint and shavings. Shavings are mined using a file and a copper-brass bar. It is better to take the paint to match the color of the heating filaments. Mix the ingredients in a 1:1 ratio to a soft dough. Make a stencil out of tape or duct tape. Turn on the heat and stencil the mixture. You will hear about the presence of contact at the place of repair by a characteristic slight hiss. All is ready. You can go right away and not wait a day.

Glue and shavings. Here, instead of paint, BF-2 glue is used, as an option.

Soldering the gap. Here you need to use zinc chloride. Solder should be taken with a low tin content, such as POS-18, POSS-4-6. If a long section of the heating filament is damaged, a silver or copper conductor can be used.

Now you should have enough options on how to restore the car rear window defroster yourself. As you already understood, this will not cause much difficulty, and you don’t need to spend a lot on materials.

Good afternoon. Today we will talk about how to repair the heated rear window. Traditionally for our site, the article contains a lot of photos and videos and is step by step algorithm troubleshooting.

How does glass heating work?

I think everyone remembers physics from a high school course. When an electric current flows through a conductor, it heats up. It is on this principle that the heated rear window works.

If you look closely at the glass, you will see contacts and current-carrying wires from the sides.

When a voltage is applied to these terminals, an electric current flows through the heating filaments and heats the glass, due to which it.

Accordingly, glass heating does not work in only two cases:

• defective heating filaments
• no voltage at the terminals

How to repair heating if one or more heating threads are faulty?

This error looks like this:

For repairs we need:

• sandpaper with a number from 1500 to 2500, 1 sheet with any grit. It is needed to remove oxides and varnish from damaged threads.
• alcohol, preferably isopropyl (we will use it to wipe the glass from dust and degrease damage)
• napkins, microfiber, cotton swabs or rags (for wiping).
• electrically conductive adhesive, it is not always available in stores, so if you are ready to wait, I recommend ordering it directly in China (we will use it to restore damaged threads).

Repair procedure:

we carefully examine the faulty heating threads and look for damage, they usually look like this:

We carefully clean the places of damage with sandpaper, trying not to touch the glass, we clean only the heating threads themselves, and then next to the damage. If you rub the glass itself with sandpaper, it will become dull, but it will not come out, since heating threads are applied to it.

We wipe the cleaned surfaces with alcohol using a cotton swab. At the same time, we will remove the dust from the sandpaper and degrease the surface.

Gently apply electrically conductive glue to the damaged areas. In order to apply the glue directly, and not as a stain, it is better to use electrical tape or masking tape. As shown in the video at the end of the article.

Apply electrically conductive adhesive with a brush.

We wait for the glue to dry, check, make sure that everything works and enjoy the money saved ....

What if the heating does not work at all?

If the heating does not work at all, two options are possible. Or all the heating threads are faulty (this is unlikely, even on machines that are 30-40 years old, one or two threads heat) ... Or the wiring is faulty.

A person without special education can only check 3 things:

The location of these items can be found in the owner's manual for your vehicle.

If, after checking, by replacing, the heating has not worked for you, it is better to contact an electrician at a service station. service.

How to repair heating if the windows are tinted?

I do not want to upset you, but most likely the answer is no! Since in order to apply an electrically conductive adhesive, you will have to remove the tint locally (locally) anyway. I'm not sure that it is possible to cut a piece of tinting only from a damaged thread. In any case, an ugly hole will turn out in tinting ....

Therefore, if you need to repair one or more heating filaments on tinted glass, the tinting, unfortunately, will have to be removed.

Conclusion.

As you can see, repairing glass heating is not difficult, of course, if you have the proper accuracy and desire.

Obviously, the easiest option is not to repair the threads, but to replace the glass, but think about how, because if the buyer sees glasses of different years of production, then at least they will tell you that the car was beaten.

That's all I have today. I hope that you have no questions left about how to repair the heated rear window. If you have any questions, or if you want to supplement the article, write comments.

The heating system (CO) of the rear window is now equipped with all cars. Thanks to its correct operation, it is easier for the driver to perform maneuvers, since he will know how the situation is behind the car. What malfunctions can occur in operation and how to repair the heated rear window with your own hands? Find answers to these and other questions below.

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Description of the rear window defroster

So, what is the heating device for the windshield (windshield) or rear window and what is the purpose of this system? The device is used to thaw ice at low temperatures, as well as to remove fogging in wet and dry weather in a car. Special threads are applied to the rear window, which allow you to remove ice residues during the car warming up in winter. By the way, it is the heater that is considered one of the most effective ways anti-fogging.

A certain number of special conductive filaments on a special film are installed on the rear window. This film is fixed with glue, and the threads themselves are powered by electricity. Electricity passes through the threads, allowing heat to be generated and, accordingly, to heat the glass itself.

Working principle and functions

The principle of operation of the car glass defroster is to press the button located in the passenger compartment by the driver vehicle, and further glass heating. The system itself is powered from the positive terminal. car battery- the voltage in this case comes through the safety elements and the ignition switch. Ultimately, energy is supplied to the controller of the device, as well as the relay contact. The negative contact of the system is connected to the mass of the car, that is, its body.

When the system is turned on, voltage is supplied to the relay coil. When this element is triggered, the contacts close, and two terminals are connected at the same time, which are marked on the diagram with numbers 30 and 87. Then the energy is transferred to the heating system and fed to the threads, which are fixed on the heated glass with glue. Further, the current again flows through the grounding of the machine and enters the negative output of the video - Sergey Kotov).

Possible malfunctions and their symptoms

As practice shows, often if the heating system does not work, then the owners of the car will find out about it as a result of fogging or the appearance of plaque. A person turns on the heating, while there will either be no result at all, or the surface will warm up, but minimally and unevenly. The power supply scheme of the system may be different - in some cars it is activated without turning on the ignition, in others the key in the lock must be turned.

Before checking and repairing the system, we recommend that you familiarize yourself with the list of faults:

1. The device is not activated. As a rule, there is an indicator on the activation button - if the light does not light up when it is turned on, then the problem must be looked for either in the button itself or in the safety device. In the event that the indicator is on, but the device is not functioning, then you can also check the relay.
2. In the event that the CO works, but the glass itself warms up too slowly, which is especially important for the frost period, then perhaps the reason should be sought in the connectors. If the contact is bad, then its resistance may be higher, while the voltage value, respectively, will become smaller. As practice shows, often the cause of the malfunction lies in the poor contact of the CO with the on-board network of the vehicle, so the contacts should also be checked.
3. Another problem is that horizontal traces remain on the surface of auto glass after CO activation. In this case, the reason, apparently, is damage to the threads in certain places. A malfunction of this kind can be determined without testers - just by eye. It should be borne in mind that the threads can be destroyed even with minor impacts, quite often this happens as a result of using a scraper for rubbing.

Photo gallery "Damaged sections of CO tracks"

Diagnostics and repair

Now more about how to diagnose and restore the damaged area. Let's start with a check.

How to find a damaged thread?

To troubleshoot, you can use one of several methods:

1. First you need to make a visual diagnosis. If the auto glass is fogged up, then activate the CO. On the damaged area of ​​the surface, fogging will remain after all the other threads have warmed up and the auto glass has fogged up. Such options self check considered one of the simplest.
2. Also, health diagnostics can be carried out using a tester - a voltmeter. To do this, you will first need to turn on the ignition and press the CO activation button. Then one tester probe will need to be grounded, that is, connected to the car body, and the other should be wrapped with ordinary food foil, and then brought to the heating track.
   When carrying out diagnostics, a voltage value should appear on the display of the voltmeter, which will be no more than five volts (this is ideal). In the event that the voltage value is near zero or increases to twelve volts, this will indicate that a break has occurred on this track. Thus, it will be necessary to diagnose all the tracks.
3. There is another way to check CO using the same voltmeter. In this case, you will need to connect one tester pin to the positive CO terminal, and the others will need to be moved along the track, only from the negative terminal. In the place where the track is damaged, the voltage value will drop sharply to zero.
4. If you do not have a voltmeter, but have an ohmmeter, then with such a device it will also be possible to check the system. In this case, the tester probes will need to be connected to the negative as well as the positive CO contact. Then you need cotton wool - a small piece needs to be moistened with distillate, and then run it along the incandescent path. At the moment when the arrow on the tester starts to move, you will find a cliff (the author of the video is Over 9000).

How to make repairs with your own hands?

If you are faced with the problem of CO inoperability, then it is not necessary to trust specialists to repair it - you can do everything yourself. There are several methods for recovering CO.

So, how to repair the system:

1. For repairs, you can purchase a repair kit. As a rule, repair kits for this task have identical parameters and characteristics - they can be used to restore no more than 10 cm of the damaged section of the track. The repair kit includes threads and a polymer resin bottle. In this case, you will first need to accurately determine the damaged area, for this you can resort to one of the methods described above.
   When the place of repair is determined, you need to turn off the CO and remove the film from the auto glass. Then the surface is carefully cleaned and degreased, after which a new track is applied to the damaged area. Using a special brush, which should also be included in the kit, it is necessary to apply polymer resin to the surface, and when it dries, repeat this step again. After completing these steps, you will need to wait at least 24 hours, only after that the CO can be turned on.
2. Alternatively, a special conductive paste can be purchased to restore the CO to working capacity. How to restore CO with paste - one layer of it is applied to the damaged section of the track, but note that in this case it will be necessary to capture the undamaged thread on both sides by about 2-3 cm. In this case, you will also need to wait at least 24 hours before further operation CO. For faster drying of the paste, you can blow the auto glass with a hairdryer.

Each car is equipped with a rear window heating device, which allows the driver to have complete picture about what is happening behind his car. But sometimes it happens that this device fails, from which driving safety is significantly reduced. How is the rear window heating repair carried out, how to do this procedure with your own hands? Find out below.

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Description of the rear window defroster

First of all, you need to figure out what the conductive heating of a car is, how the filaments of the incandescent film work and what kind of malfunctions are characteristic of it.

Device

Heated windshield or rear window does a good job not only of thawing ice in winter time year, but also with fogging in dry weather. Thanks to the filaments of the filament film, the glass can evenly get rid of the presence of ice while the car is warming up. When the air flow of the heater just starts to get warm, heating the windshield or rear will already make it completely transparent. The heater is the only effective method in the fight against sweating.

As for the windshield - its heating is carried out as a result of exposure to warm air. As for the rear, in this case the heater is a certain number of filaments on the film, installed on the adhesive, which operate on voltage. These filaments, which are characterized by high resistance, are installed on heated glass. Incandescent filaments mounted on glue conduct energy through themselves, which allows heat to be generated. Ultimately, when the button for heating the rear window is pressed, the filaments begin to heat up and completely heat it up.

Working principle and functions

If the heated rear window or windshield does not work for you, then in order to correctly diagnose breakdowns, you need to understand the principle of operation. Below is a diagram of the operation and connection of the heater with your own hands to the on-board network of the car. As you can see, food comes with positive terminal The battery through the ignition switch, as well as fuses, eventually entering the device controller and relay contact. As for the negative terminal, it is connected to the vehicle body, one of the heater terminals is also connected to the mass.

During the activation of the heater, the current begins to flow to the relay coil. After the relay is activated, the power contacts are closed, as well as the simultaneous connection of two terminals marked with the numbers 87 and 30. The voltage is supplied to the car heater, passing through the threads installed on the glue, connected to each other in parallel. After that, the voltage again passes through the mass of the car and returns to the minus of the battery.

Possible malfunctions and their symptoms

If the heated rear window does not work, then motorists usually find out about this when it starts to sweat or a coating forms on it. Turning on the heater function, you can wait a very long time, as a result there will be no results or the glass will be partially heated. You do not need to be a great specialist here to understand that the device needs repair.

Depending on the wiring diagram, the heater of the windshield or rear window of the car can be turned on both with the ignition on and without it, but usually it still works when it is on. Depending on the car, the windshield or threads installed on the adhesive on the rear window may only work after the engine is started. This helps prevent accelerated battery discharge (the author of the video is BortZhurnal Renault Megan).

It should also be noted that the device can operate on a current of 10 to 25 amperes, it all depends on the specific car.

So, if the rear window heating does not work, then there can be several types of malfunctions:

1. The system does not turn on. In the event that the lamp located on the button does not light up when the system is turned on, the problem is most likely either in the button or in the fuse. If the lamp is on, but the threads planted on the glue do not heat up, you need to check the relay. In some cases, the problem lies in the connectors connecting the device to the car's electrical circuit, so you need to check these elements as well. Diagnostics is carried out in accordance with the service documentation for the car.
2. If the rear or windshield fogs up slowly, especially during the winter cold, the essence of the problem may lie in the poor contact of one of the connectors, this needs to be checked. As a result, the resistance of the contacts will increase, and the voltage will be less powerful, respectively, the threads planted on the glue will warm up longer. In order to check this, it is necessary to use a multimeter and measure the voltage indicator at the terminals of the device. If there are differences in the readings obtained, then they should be no more than one volt. Otherwise, you will need to restore the heating of the rear window of the car.
3. There are horizontal fog marks on the windshield. is another type of error. One of the most common problems in this case is the breakage of the filaments in certain places. Usually, it is possible to check and identify such a breakdown without special devices, just by eye, since the auto glass in the place of the break will not be thawed or misted. It should be noted that even with a slight mechanical impact, the tracks are destroyed, therefore, when cleaning auto glass, it is necessary to carefully use a scraper. If you are transporting oversized cargo, make sure that they do not rest against the rear window.

Diagnostics and repair

Ways to find a problematic thread

It is not so difficult to make repairs and diagnostics with your own hands.

There are several options for checking your own hands:

1. First of all, this visual inspection. If the auto glass fogs up, turn on the system. In the place where the break occurred, it will sweat almost immediately. In this case, the rest of the surface will not heat up. This do-it-yourself diagnostic method is the easiest.
2. Another option for checking with your own hands is using a voltmeter. You need to manually activate the ignition of the car and, accordingly, the heating system. One voltmeter probe must be placed on the mass of the vehicle, and the second is wrapped in food foil, after which it must be brought to the heating thread. When performing such a procedure with your own hands, you will notice that the voltage level is no more than 5 volts. If this indicator drops to 0 or increases to 12, a break has occurred in this place.
3. Another do-it-yourself diagnostic option is with the same voltmeter. One voltmeter probe is connected to the plus of the system, and the second must be moved along the filament, from the minus side. Where a break occurs, the voltage level will drop to zero, in which case repairs will be required.
4. The last do-it-yourself diagnostic option is using an ohmmeter. The probes of the device are connected to the minus and plus of the system. You need to take a piece of cotton wool and moisten it in distilled water, then draw it along the thread. When the ohmmeter needle starts to move, it will indicate a break.

DIY repair options

How to repair rear window heating at home? There are several ways:

1. Using a repair kit. In practice, repair kits usually have the same characteristics - they usually allow you to repair up to 10 cm of damaged thread. Such repair kits include the threads themselves, as well as a can or tube with a special polymer resin. To repair, you need to accurately identify the location of the break, and then turn off the heating system. Next, you need to remove the protective film and attach a new thread to the site of damage. Using a brush, apply polymer resin, repeat the application procedure after complete drying. Wait a day before using the system again.
2. For repairs, you can use a conductive paste - a layer of the substance must be applied to the place of the break. It should be noted that when applying, it is necessary to grab a few centimeters on each side, wait about a day after application. To make the paste dry faster, you can blow it with a building hair dryer.

Video "How to repair a heater at home"

A detailed do-it-yourself system repair procedure is shown in the video below (the author of the video is SAMODELKIN and GADGET +).

At any time of the year, the driver needs a properly working car. And sometimes some details are considered not so important, but according to the law of meanness, they will be needed in difficult times. One of the troubles that can happen to a driver on the road is damage to the rear window heating system. Both in winter during the period of cold weather, and in summer in rainy weather, this function of the car must be performed in full. Otherwise, humidity will get into the cabin, and visibility is reduced to the limit, as a result, the driver is forced to repair the rear window defroster of the car.

Heating system and functions

The heater is powered by electricity. It is known that on Windshield warm air currents affect, special heating elements are needed for the rear. It's no secret that the inner side of the rear window is equipped with metal tracks that have a high resistance to electric current. When current flows through the ribbons, heat is released and, accordingly, heating occurs. The result is obvious: clear, dry, heated glass.

The main function of this structural element is to combat icing, moisture and fogging. As soon as the system starts to work, after a short period of time the glass is clean and transparent. In addition, this function allows you not to overdry the air in the car.

Damage to the heating system

As a rule, the driver notices damage in this part of the car only when the rear window is constantly sweating and does not get rid of ice. After turning on the heater, ideally, after a couple of minutes, it should be transparent and clean, but if this does not happen, then damage or malfunction has occurred. Among the damage to the system should be highlighted:

• Slow glass fogging. If visibility does not improve after a few minutes of heating operation, there is a malfunction. The reason may be hidden in the loose contact of the circuit connector.
• The inability of the heater to work when it is turned on. In this case, after pressing the indicator is not lit. This may be due to a faulty key or a blown fuse.
• The presence of horizontal lines of fogging on the glass. As a rule, such a malfunction can occur due to a break in the heating filaments that are applied to the glass surface.

Slow glass fogging

Whatever happens, the main thing is to make the correct repair of the rear window heating with your own hands or with the help of a specialist.

Fault detection and repair

It is believed that it is quite simple to determine the damage in the heating system, and every driver will cope with the task. Before starting work, it is recommended to count the threads applied to the glass, so that later it will be easier to remember which one is damaged. There are cases when the gap cannot be seen: it is so small that one of the instruments should be used. It can be a voltmeter or a multimeter. In any case, in order to repair the rear window heating filaments, you need to carefully examine the surface and identify damage.

There are several effective ways to troubleshoot:

• Method of visual diagnostics - in damaged areas, when the heating is on, the glass does not warm up and remains misted.
• Using a voltmeter - with the heater turned on, one probe should be placed on the "mass" of the machine, and the second, wrapped in foil, placed in the center of the thread. It is necessary to monitor the voltage, its indicator should not exceed 5 V. If the device shows 0 or 12 V, then there is a gap in this place.
• With the use of an ohmmeter - the device turns on in the "kiloohm" mode and is connected to the opposite terminals of the heater. You should moisten the cotton wool and draw along the thread. In the place where the arrow will twitch, and there is a gap.

Definition of malfunction of heating of back glass

You can repair the heater in a variety of ways, for example, purchase a special kit for repairing rear window heating filaments.

You can fix the system using a repair kit, conductive paste and folk methods. The main difference between all options are the materials that are used during operation.

Repair materials

By purchasing a repair kit, the driver has the opportunity to repair the heating filament up to 10 cm. Materials used in these kits:

• pattern with threads;
• thermally active polymer resin in a can.

Materials for repairing heated rear window

Work is carried out strictly with the heating system turned off. Having determined the place of damage, it is necessary to remove the protective film from the template and attach it to the found place. The polymer material is applied with a brush, and after drying it is repeated several times. After completing the work, the stencil is removed and it is advisable not to turn on the heater during the day.

In the case of using a conductive paste, you may only need a building hair dryer, which speeds up the drying of the material.

The materials used in the "folk" methods of repairing the heater are paint (glue) and shavings, metal for soldering the damaged area. As a rule, the paint is selected in accordance with the color of the threads and combined with chips, adhering to a 1: 1 ratio. To work, you need a stencil on which the mixture is applied (with the device turned on). The advantage of this repair method is that there is no need to wait for drying during the day. The driver can immediately go after the work is done. Zinc chloride is suitable for soldering.

How to restore heat with glue

Quite often, drivers use conductive adhesive to repair the heated rear window. The material is mixed with shavings, which are mined with a file or a copper-brass bar. The ratio is 1:1. The result is a soft dough consistency. Using electrical tape or adhesive tape, a stencil is made, and the prepared mixture is applied to the site of damage. After the procedure, you do not need to wait for the materials to dry and you can immediately move on.

Heated Rear Window Repair Adhesive

What to do with contacts, and other methods

If the contacts were damaged in the heating system of this element of the car, then it is best to use the soldering method. This method is the most reliable and will help to forget about this problem for a long time. Zinc chloride works great. It is recommended to take solder with a minimum tin content. After completion of work, the glass must be rinsed well with water to remove chemical residues.

Heat recovery price

In fact, repairing the heater is quite simple and inexpensive. Using the "paint + chips" method, the driver will incur minimal costs by purchasing paint of the desired color (or using the available material) and preparing sawdust. If you buy a repair kit, it will be much more expensive. The cost also depends on the manufacturer of the conductive adhesive. It can be a well-known and expensive company Keller or a cheaper manufacturer - Loctite. Alternative option will be the glue of the Russian company.