Do-it-yourself Karcher vacuum cleaner repair

Karcher vacuum cleaners are of high quality and have proven themselves in everyday life from the best side. However, they sometimes "fail". At the same time, many breakdowns of vacuum cleaners are not so serious, and before contacting a service center, you can diagnose and try to fix the malfunctions yourself. For example, diagnostics and repair of LG vacuum cleaners very often help to save equipment, as well as diagnostics and repair of Samsung vacuum cleaners. So why not try the same principle with Karcher products?

According to the statistics of service centers that repair Karcher vacuum cleaners, the main breakdowns of the devices are:

1. Weak dust suction or its absence (brush, hose, nozzles clogged);
2. Clogged vacuum cleaner filters;
3. Breakage of the foam nozzle;
4. Refusal to include;
5. Formation of a large amount of foam.

It is not difficult to determine which particular problem of the listed ones takes place and which spare parts to buy. It is enough to diagnose and troubleshoot.

If the vacuum cleaner stops sucking dust or sucks it poorly, it means that there is a blockage in the path of the air flow. It is necessary to perform a number of actions:

1. Take out the trash can and see if it's full. If necessary, clean it;
2. Disconnect the hose, turn on the Karcher vacuum cleaner and check if there is a draft through the hole to which the hose is attached. If air is sucked in, then the brush, nozzle or hose is clogged. The brush, like other components, is cleaned with a wire or blown. If there is no traction, then the problem must be sought inside the unit. Another reason for the lack of traction is a broken hose. It occurs when the vacuum cleaner is dragged behind it, bent over, or stepped on. In this case, the hose needs to be repaired or replaced (especially for LG vacuum cleaners);
3. If an external examination of the vacuum cleaner did not give results, you need to look inside and look at the condition of the fine filter. Most likely, he messed up. The filter must be carefully removed, washed or blown and reinstalled.

Foam nozzles of Karcher vacuum cleaners and spare parts for them are produced for household and professional models and are used for cleaning vehicles. There are a lot of reasons for their unstable operation: mismatch between the parameters of the vacuum cleaner and the parameters of the nozzle, clogging of the foaming tablet - filter, water supply nozzle or dispenser, chemistry supply nozzle, air suction hole.

In all cases, disassembly of the foam nozzle, its sequential inspection and troubleshooting is required.

Another problem with the Karcher foam nozzle is excessive foaming when spraying (a common problem with Philips vacuum cleaners). In this case, you need to buy a defoamer.
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The Karcher vacuum cleaner does not turn on - a common cause for panic. In this case, experts advise plugging the vacuum cleaner into a power outlet and trying again. But if without jokes, there are several reasons for this behavior of the unit:

1. Breakdown of the power button;
2. Vacuum cleaner overheating;
3. Lack of voltage in the network;
4. Cord break;
5. Engine breakdown.

The first thing to do is to use an indicator screwdriver and check the voltage in the network by putting it in turn into the outlet holes. If the red light comes on, then there is voltage, go to step 2.

The second reason the vacuum cleaner refuses to turn on is engine overheating (a common cause of failure for Samsung vacuum cleaners with a cyclone filter). It occurs due to clogging of the dust collector or hose. They must be cleaned, wait 5-7 minutes and turn on the vacuum cleaner again.

If the cord is broken, it is strictly forbidden to operate the vacuum cleaner! It is not recommended to wrap it with electrical tape, you need to buy a new one.If the fracture happened near the plug, you can buy a replacement plug, strip the wires and connect them to the terminals.

If the listed problems do not cause the vacuum cleaner to refuse to turn on, you need to look into the engine, check the power button, repair or replace them by purchasing the necessary spare parts.

A defoamer will help solve the problem of excessive foaming (not relevant for Vitek vacuum cleaners). The defoamer not only extinguishes the foam, but also prolongs the life of the intermediate filter. It must be added to the aquafilter before starting work. The defoamer is recommended to be poured in a volume of 2 milliliters per two liters of liquid.
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Some malfunctions of Karcher vacuum cleaners can be eliminated by yourself after inspecting the vacuum cleaner. But some of them require special attention: replacement or repair (cleaning) of filters, engine, hose, power button, foam nozzle.

If you need to clean the filters, then in the operating instructions for the vacuum cleaner, look at how many of them are installed in it. In Karcher models (consider the DS 5600 Mediclean), this is usually an intermediate filter and a Hepa filter. To get the intermediate filter you need:

1. Disconnect the unit from the household network (irrelevant for Electrolux cordless vacuum cleaners);
2. Remove the back cover;
3. Take out the Nera filter;
4. Get a tank of water;
5. Remove the intermediate filter, clean its lamellas under running water, dry it, and install it back.

The Nera filter is cleaned in the same way.

The hose can be repaired with electrical tape by wrapping it around the damaged area. But it's better to buy a new one. The foam nozzle is repaired in different ways, depending on the type of breakdown. If the nozzle of the dispenser, air suction, chemicals or water supply is clogged, do the following:

1. Unscrew the air suction control valve and blow it out;
2. Unscrew the chemical supply nozzle and blow it out;
3. Unscrew the handle of the dispenser counterclockwise, blow out the nozzle;
4. Similarly, repeat the procedure with the water supply nozzle.

If the foaming tablet is clogged, you must:

1. Unscrew the handle of the dispenser;
2. Remove the tablet (it may not be in many Zelmer washing vacuum cleaners);
3. Place it for several minutes in an acid solution, rinse with water, blow;
4. Set the tablet back.

It is problematic and not recommended to repair the power button and all operations related to engine repair at home, especially since you will probably have to buy spare parts. Therefore, it is better to contact the service center to fix the problem.

Prices for the service depend on the type of vacuum cleaner. Minor repairs will cost 600-800 rubles, complex - 800-1200 rubles, major - 1000-1400 rubles.

By the way, if you decide to buy a vacuum cleaner in Yekaterinburg or buy a vacuum cleaner in Novosibirsk, then you should know that there are branded stores of manufacturing companies there. This means that it is there that you can apply for the repair of equipment, bypassing unofficial stores.

Regardless of the manufacturers and types of vacuum cleaner, the main difference lies in the quality, power and design.

The most important thing in a vacuum cleaner is an electric motor that creates a vacuum and, as a result, sucks dust and various particles through special filters through which only air passes.
In different types of such devices, these filters are different, and flasks and just bags and cyclonic vacuum cleaners.

But it is the engine and, occasionally, the electronic power (speed) control circuit that requires the most attention in this whole device.

Do-it-yourself engine repair is not difficult to carry out if the breakdown is simple and the engine is still running but the engine is heavy (when turned off) or the engine starts to rumble or hum strongly, sometimes the vacuum cleaner gets very hot in a short period of time.

The heart of the vacuum cleaner, as we have already figured out, is the engine and, as a rule, the collector.
What is such an engine?
The engine is housed in a housing where the fan impeller blades are hidden. It is of a tangential type, where air is drawn in in the center and exits through the periphery and through the rear filter is already out.
The brushes in the engine are placed in special mines made of brass, as a rule, this is ordinary carbon in the form of graphite. Over time, the brushes are rubbed against the collector roller, their middle is ground off and they become slightly semicircular, due to which the area of ​​​​contact with the collector areas increases. The brushes in their mines are pressed by springs, creating the necessary pressure of graphite, in the process of robots, to the collector. The brush will work until that time until it is worn out and the spring cannot properly contact the graphite to the commutator.
It is necessary to monitor the cleanliness of the collector shaft itself, clean it from carbon deposits if necessary, and remove the oxide layer to a copper sheen.

The shaft is attached to the stator on two bearings of different sizes, as a rule, this is done in order to make it easier to disassemble it. The front is usually large, and the rear is smaller.

The shaft is carefully knocked out of the stator using any suitable tool. Then we look at the course of the bearings, because of the dusty robots they become clogged despite the presence of anthers. If necessary, the anthers are carefully removed with a thin screwdriver or an awl, washed with a WD-pattern, after which the balls must be lubricated, for example, with Litol-24 or EP-2 type grease, after which the anther is put in place and snaps into its grooves in the bearing itself.

To start some kind of repair or maintenance of the vacuum cleaner, you need to remove the case. Each model has its own methods.
First of all, all filters that make it difficult to access the motor are removed, the case screws are unscrewed, including hidden ones (under the buttons, for example). Having unscrewed all the screws, you need to carefully try to disassemble the case, if this fails, take a closer look at where else there may be latches or additional screws, if you do not pay attention to this, you can break the case.

Then the entire electrical installation is disconnected, as a rule, the connections are made on the connectors.
The plastic housing of the motor is unscrewed from the frame, after which the motor is removed from its plastic housing.
In some models, it is simpler and the motor itself is fixed in the vacuum cleaner body in special rubber grooves-seals or is screwed tightly to the general vacuum cleaner body.

To disassemble the engine and remove the fan impeller First of all, we will remove the front part of the casing (above the impeller). We take a thin metal object, you can use a screwdriver and carefully bend it from the side of the casing so that the screwdriver goes a little into the middle, then with a gentle movement we push out the upper part of the casing, as a result of which the entire impeller becomes available to us.

The nut on the impeller usually has a left-hand thread (but there are exceptions) We try to unscrew it while holding the impeller with your hand, if it scrolls and you cannot unscrew the nut in this way, there is one great way
So .. we take a good stranded wire with a cross section of more than 1.5mm in dense rubber insulation (to prevent slipping). We push such a wiring and wrap the collector shaft 2-3 times, turn to turn and stretch in different directions, thereby fixing the shaft motionless.

It is most convenient to do this together, one person fixes the collector using the ends of the wire stretched to the sides, and the second unscrews the nut on the fan disk.
The method is very convenient and safe for fixing the anchor. In the same way, when reassembling, tighten the nut.

After removing the fan impeller, unscrew the housing screws, by this time the brushes should already be removed.

Then we carefully pull out the anchor, if necessary, twisting the upper part a little.

If necessary, the bearings are removed using an available tool or special threaded pullers. In especially severe cases, sometimes the bearing “sticks” tightly with the bushing, a special hydraulic press is used to remove the bearings.

• bearings
• brushes
• fuse
• network wire
• no contact in the switch
• motor windings, breakage or burnout of the winding (stator or rotor)
• capacitor failure
• failure of the electronic circuit of the power regulator

Loss of power and suction.
The most common cause is either clogged filters or bearing failure.
The filters must be cleaned and the operation checked again, also the operation (draft) of the vacuum cleaner without filters should be checked, as it happens that the usual cleaning of the filter does not help and it needs to be replaced.
If the traction without filters does not give the same working traction, you will have to disassemble the vacuum cleaner, the impeller on it should easily turn with your finger without much effort. Additionally, we remove and inspect the brushes and clean the collector from soot, using sandpaper or a piece of ordinary cloth.

In some cases, the tightness of the hose is broken, it can be both a violation of the integrity of the hose itself and the connecting pipes at the ends of the hose, the hose simply slips out of them a little.

The vacuum cleaner does not turn on.
If everything is fine with the voltage at the outlet, we disassemble the vacuum cleaner and first of all inspect the fuse and power cord, especially at the very end of the cord on the winding drum at the soldering points.
If there is a tester, we call for a contact.
The power button could break, or the contact is simply broken in it, it sometimes gets clogged, again with the help of a tester we make sure that the button is working.
If all the elements were rung by the tester and the voltage comes to the motor brushes without any problems, and the brushes themselves are not erased, then most likely you will have an expensive engine repair or simply replacing it, since in most cases it is more expedient to install a new motor than to repair a tired old one by rewinding.

If the vacuum cleaner worked for a long time and does not turn on it is quite possible that the protective thermal relay on the engine itself has worked as a result of overheating - in this case, there is nothing to repair, it will be enough to leave the vacuum cleaner to cool the engine.

Vacuum cleaner motor speed not adjustable.
The most common cause of such a malfunction is a breakdown of the triac, in which the voltage through it is not regulated, but freely passes through it without any control. Possible failure of this element and possibly loss of contact on one of the legs of this element on the board.
By slightly pressing down on the speed control knob, you can make sure that the regulator itself is in good condition or that the contact may be broken in it and the regulator slider will not contact its site.

Vacuum cleaner emits odor and hot air.
First of all, you need to make sure that the suction inlet is not clogged, inspect the hose, check the retraction force at the inlet and whether the sound of the engine changes when the inlet is plugged with the palm of your hand. In the case of satisfactory operation on the part of the suction system, we can assume a malfunction of the engine, and most likely the brushes.

The vacuum cleaner hums and rumbles - the reason for this action is the engine, and in particular its bearings. Most likely they need additional lubrication or, if there is a large shaft around their axis, they need to be replaced with new ones.

The cord does not tighten when pressing the button or constantly tightens during operation - violation of the winding drum, the spring may have burst, weakened or vice versa is too tight.
We inspect the pressure roller of the button and, if necessary, by removing the drum, we wind or unwind the wire on the drum - changing the tension of the drum itself to the one we need.

As a rule, it is not complicated and in most models it is quite standard.

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Every home uses a lot of electrical appliances. Vacuum cleaner repairs can be easily done by hand, simply by having a standard set of tools with you.

Regardless of the model or design of vacuum cleaners, most often any problems with this technique are associated with engine malfunctions. If the device is buzzing, dusty, or makes intermittent sounds during operation, this is junk engine. At the same time, if the vacuum cleaner does not suck up debris or the pressure is insufficient for normal operation, then most likely these are hose malfunctions.

Troubleshooting:

1. When speed and suction power drop, the most common cause is bearing failure. At the same time, it is also possible to observe the periodic restoration of the functionality of the device, i.e., a temporary drop in its efficiency does not affect the permanent operation; Photo - torn hose
2. If the vacuum cleaner is buzzing, but at the same time rubbish and dust are normally sucked in, then the cause is a motor problem. Basically, all breakdowns associated with the weakening of power relate to the motor device;
3. If there are no loud sounds during operation, but at the same time, the vacuum cleaner does not suck in the usual amount of debris, then the tightness of the hose is broken. Please note that the problem may be both in violation of the integrity of the corrugation, and in the breakdown of the receiving brush.

To disassemble a standard vacuum cleaner Electrolux, Philips (Philips), Thomas (Thomas) or any other for repair, you can follow the following instructions:

At the same time, the maintenance of washing vacuum cleaners (Karcher - Karcher, Zelmer - Zelmer, Bork - Bork and others) is significantly complicated by the presence of a water pump. It supplies water to the dust collector and is installed on its course, so in addition to the actions described above, you will also need to unscrew it.

Video: how to repair a vacuum cleaner yourself <>

Before disassembling models of vacuum cleaners Hoover, Vitek, Samsung, Rowenta (Roventa) and others for spare parts in order to get to the engine and repair it, you need to check the power cord. Due to the fact that the cord is constantly in an active state (pulled from room to room, under constant tension), it wears out quickly. To check its performance, you can use the most common multimeter. After finding the place of fiber fracture, replace the defective section or cut the cable to the desired length.

If the pressure in a Dyson or Miele vacuum cleaner begins to drop noticeably during operation, then the first thing to do is check the filters. They become dirty after each use of this cleaning technique, but not every housewife cleans them with such frequency and thoroughness as dust collectors. Once every few months, you need to not only knock out, but also wash out the villi. Otherwise, with each use, the vacuum cleaner will suck up less and less debris, and over time, quite a serious engine repair will be needed due to deterioration in performance.

Photo - washing option

The scheme of operation of a standard "dry" vacuum cleaner is a tandem of two motors. One is a motor, and the second is an engine that makes the brushes of the first engine work. It should be noted that in addition to the motor inside the vacuum cleaner, these same brushes and bearings can also wear out.In some models of vacuum cleaners (say, Siemens - Siemens, Vax, Vao, Dyson), you can repair them yourself, in most others it is better to immediately take them to a service center.

After proper disassembly, it will not be difficult to replace any broken internal part with a working one. The main thing is to take into account the brand and size of the previous one. In particular, always pay attention to the material and size of old bearings.

Very interesting to read:

The vacuum cleaner is deservedly considered the most popular piece of household appliances. Most homeowners today can no longer imagine their lives without a vacuum cleaner, because it saves a lot of time and also helps to keep the house tidy and clean. Do-it-yourself vacuum cleaner repair, like other household appliances, is a common practice, because all appliances have the sad property of breaking down. The cause of the breakdown, as a rule, is the wear of parts, as well as the destruction of mechanisms. But a breakdown of a vacuum cleaner does not always mean that you need to purchase a new one, because it is quite possible to repair this equipment with your own hands.

• As a rule, the reason that your vacuum cleaner is out of order is a motor failure. Such a breakdown occurs in almost all models and brands of the device, regardless of the manufacturer. According to certain signs and features of the device, you can diagnose a malfunction and try to repair the vacuum cleaner with your own hands.

Important! The main and first sign of a malfunctioning engine is a strong hum, as well as the appearance of a dust cloud during the operation of the device.

• Insufficient suction power or a complete absence indicates a hose breakdown. Another important sign that the tightness of the hose has been broken is the weak and quiet operation of the device. In this case, the situation is much simpler - read how to repair the vacuum cleaner hose with your own hands.

Important! In addition to breakdown, the receiving brush can also be damaged in the corrugation.

• Low suction speed, as well as a drop in operating speed, are caused by bearing failure. The proof that these particular components have failed is the periodic restoration of operation to normal mode.
• Excessive hum during proper operation indicates that the engine has failed. In most cases, malfunctions in the motor affect the suction power of air flows.

Important! Often the cause of problems with household appliances and its failure are voltage drops in the mains. To eliminate this factor in the future, find out which one is better to choose a surge protector for household appliances.

Regardless of what the cause of the malfunction is, you need to know how to disassemble the device in order to repair the vacuum cleaner with your own hands:

• Remove the sealing grid located directly under the cover of the dust collector compartment. This cover is fixed with two screws or other threaded connections. It is necessary to unscrew the screws with a screwdriver with the required section, clockwise.
• After you remove the sealing grid, disconnect the control unit as well as the dust collector cover.
• Depending on the model and configuration of the vacuum cleaner, the dust container is either simply removed or unscrewed. Under the dust collector is a garbage collection system, under which the housing is connected directly to the engine.
• To get to the motor, separate the housing from the base of the instrument.

Important! In certain models, this becomes feasible only after unscrewing the secret screw, which is hidden directly in the handle.

• The engine itself is protected by a special rag pad, which is attached directly to the intake hose inlet.Remove the gasket and clean it, if necessary, you can replace the gasket with a new one.
• Remove the wires that supply power from the motor. To remove the wires, you will be forced to unscrew the screw terminals.

The first thing an experienced master will do, regardless of the manufacturer (Bosch, LG, Electrolux, Rainbow), is to check the bearing pairs: upper, lower. Bearings are responsible for the performance of the motor. In addition to the bearings, it is also important to check the integrity of the motor armature and brushes.

• Roller position incorrect. It is necessary to check whether the height of the roller is set correctly to the surface to be cleaned.
• The brush has worn out. Inspect the brush itself and check the length of the bristles on the roller itself. If the wear has exceeded the norm, then replace the brush roller with a new one.

• The belt is torn. Disassemble the vacuum cleaner and then replace the belt with a new one that fits your vacuum cleaner exactly.
• Stuck roller bearings. Remove the brush roller, then remove the end caps. At each end, check for hair or thread on the bearings.

• The belt slips. Check how tight the belt is. If the belt is loose, replace it with a new one.
• Check your bearings for ease of rotation of the brush roller. If it turns hard, then replace or lubricate.

1. The plug is not plugged into the socket. Check if the plug is firmly inserted into your socket. And also you should make sure that there is voltage directly at the outlet.
2. No electricity. Check the power panel, quite often there you can see a knocked-out machine or burnt fuses.
3. Plug or fuse is defective. Check the correct connection of the plug, as well as the fuse that is built into the plug, if any.
4. Broken power cord. Be sure to check the power cord, to do this, disassemble the vacuum cleaner, find the place of the electrical connection of the end of the cord and ring its wires to determine the break. Replace it if necessary.

Important! If the problems turned out to be very serious and the repair will cost approximately the same as buying new equipment, it makes sense to go the second way. And to make it easier for you to choose, we suggest that you familiarize yourself with the publications, which describe in detail: