Do-it-yourself Karcher vacuum cleaner repair

Vacuum cleaners Karcher are of high quality and have proven themselves in everyday life from the best side. Nevertheless, 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 devices are:

1. Weak or no dust suction (brush, hose, nozzles clogged);
2. Clogged vacuum cleaner filters;
3. Breakage of the foam nozzle;
4. Refusal to include;
5. Excessive foam formation.

It is not difficult to determine which of the listed problems and which parts to buy. It is enough to carry out diagnostics and troubleshoot.

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

1. Get out the waste container and see if it is overflowing. Clean it if necessary;
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 connected. If air is being sucked in, the brush, nozzle or hose is clogged. The brush, like other accessories, can be cleaned with a wire or blowing. If there is no thrust, then the problem must be looked for inside the unit. Another reason for the lack of traction is a broken hose. It occurs when the vacuum cleaner is dragged over it, bending over it, 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 has not yielded results, you need to look inside and look at the state of the fine filter. Most likely, it is clogged. The filter must be carefully removed, washed or blown out 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: a mismatch between the parameters of the vacuum cleaner and the parameters of the nozzle, clogging of the foam-forming tablet - filter, nozzle for water supply or dispenser, nozzle for supplying chemistry, air intake holes.

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 an antifoam agent.
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The Karcher vacuum cleaner does not turn on - a common reason for panic. In this case, experts advise to plug the vacuum cleaner into an outlet and try again. But if it's no joke, there are several reasons for this behavior of the unit:

1. Breakage of the power button;
2. Overheating of the vacuum cleaner;
3. Lack of voltage in the network;
4. Broken cord;
5. Engine breakdown.

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

The second reason for the refusal of the vacuum cleaner to turn on is overheating of the engine (a common cause of breakdown in Samsung vacuum cleaners with a cyclone filter). It occurs due to a clogged dust container or hose. They need to be cleaned, wait 5-7 minutes and turn on the vacuum cleaner again.

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

If the listed problems are not the reason for the refusal of the vacuum cleaner to turn on, you need to look into the engine, check the power button, repair them or replace them by purchasing the necessary spare parts.

An antifoam will help to solve the problem of excessive foaming (not relevant for Vitek vacuum cleaners). The defoamer not only dampens foam, but also prolongs the life of the intermediate filter. It must be added to the aquafilter before starting work. Antifoam 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, see how many of them are installed in it. In Karcher models (consider the DS 5600 Mediclean), this is usually an intermediate filter and a Hera filter. To get an intermediate filter you need:

1. Disconnect the unit from the household network (not relevant for Electrolux cordless vacuum cleaners);
2. Remove the back cover;
3. Take out the Nera filter;
4. Get out the water tank;
5. Remove the intermediate filter, clean its lamellas under running water, dry it, and reinstall it.

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 lance is repaired in different ways, depending on the type of breakdown. If the nozzle of the dispenser, air intake, chemical or water supply is clogged, do the following:

1. Unscrew the air intake control valve and blow it out;
2. Unscrew the chemical supply nozzle and blow it out;
3. Unscrew the dispenser handle counterclockwise, blow out the nozzle;
4. Repeat the procedure with the water supply nozzle in the same way.

If the foaming tablet is clogged, you should:

1. Unscrew the dispenser handle;
2. Take out a tablet (it may not be in many Zelmer vacuum cleaners);
3. Place it in an acidic solution for a few minutes, rinse with water, blow out;
4. Place the tablet in place.

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

Service prices 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 manufacturers' companies there. This means that it is there that you can apply for the repair of equipment, bypassing unofficial stores.

Regardless of the manufacturer and type of vacuum cleaner, the main difference lies in quality, power and design.

The most important thing in a vacuum cleaner is the electric motor, which 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 cyclone-type vacuum cleaners.

But it is the engine and, occasionally, the electronic power (rpm) 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 you can hear a heavy engine stroke (when turned off) or the engine starts to rattle or buzz strongly, it happens that 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 motor is housed in a housing where the fan impeller blades are hidden. It is of the tangential type, where air is drawn in at the center and exits through the periphery and already exits through the rear filter.
The brushes in the engine are placed in special shafts made of brass, as a rule, this is ordinary carbon in the form of graphite. Over time, the brushes rub against the collector roller, their middle is ground down and they become slightly semicircular, due to which the contact area with the collector pads increases. The brushes in their shafts are pressed by springs, creating the necessary pressure of the graphite, in the process, by the robots, to the collector. The brush will work until it wears off and the spring cannot properly contact the graphite with the manifold.
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 by 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 back is smaller.

The shaft is carefully knocked out of the stator using any suitable tools. Then we look at the course of the bearings, because of the dusty robots they get clogged despite the presence of anthers. If necessary, the anthers are carefully removed with a thin screwdriver or an awl, washed with a jet of WD-pulleys, after which the balls must be lubricated, for example, with grease such as Litol-24 or EP-2, after which the boot 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 impede access to the motor are removed, the housing screws are unscrewed, including secret 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 where there may still 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 motor housing is unscrewed from the bed and the motor is then removed from its plastic housing.
In some models, it is simpler and the motor itself is fixed in the body of the vacuum cleaner in special rubber grooves-seals or screwed tightly to the general body of the vacuum cleaner.

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 gently bend it off the side of the casing so that the screwdriver goes a little into the middle, then gently push the upper part of the casing out, 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 by holding the impeller with our hand, if it scrolls and in this way it is impossible to unscrew the nut, 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 in such a wiring and wrap the collector shaft 2-3 times, turn to turn and stretch it 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 carefully pull out the anchor, twisting the upper part slightly if necessary.

If necessary, the bearings are removed using a commercially available tool or special thread pullers. In especially severe cases, the bearing sometimes “sticks” tightly to the sleeve; a special hydraulic press is used to remove the bearings.

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

Drop in power and suction power.
The most common cause is either a clogged filter or a defective bearing.
It is necessary to clean the filter and check the operation again, also check the operation (draft) of the vacuum cleaner without filters, since it happens that the usual cleaning of the filter does not help and it already needs to be replaced.
If the draft without filters does not give the same working draft, 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 carbon deposits using zero sandpaper or a piece of ordinary cloth.

In some cases, the tightness of the hose is broken, this 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 in the outlet, disassemble the vacuum cleaner and first of all inspect the fuse and the power cord, especially at the very end of the cord on the winding drum in 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 the tester, we make sure that the button is working properly.
If all the elements have been called by the tester and the voltage comes to the engine brushes without problems, and the brushes themselves are not erased, then most likely you will have to repair the engine expensively or simply replace 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 then it is quite possible that the protective thermostat 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.

The speed of the vacuum cleaner motor is not regulated.
The most common cause of such a malfunction is the breakdown of the triac, in which the voltage through it is not regulated but freely passes through it without any control. It is possible that this element fails, and it is possible that contact is lost on one of the legs of this element on the board.
By slightly pressing down on the speed regulator knob, you can make sure whether the regulator itself is in good working order or the contact may be broken in it and the regulator slider does not contact its site.

The vacuum cleaner emits a foreign smell 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 you plug the inlet with your palm. In case of satisfactory operation on the part of the suction system, we can assume that the engine is malfunctioning, but 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 the button is pressed or is constantly tightened during operation - malfunction of the winding drum, perhaps the spring has burst, is weakened or, on the contrary, is too tight.
We inspect the pressure roller of the button and, if necessary, having removed the drum, we wind up 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 is pretty standard in most models.

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A large number of electrical appliances are used in any living space. You can easily repair vacuum cleaners with your own hands, just 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 humming, dusty, or makes intermittent sounds during operation, this is the engine junk. At the same time, if the vacuum cleaner does not suck in debris or the pressure is insufficient for normal operation, then most likely this is a hose malfunction.

Troubleshooting:

1. When the speed and suction power drop, the most common cause is bearing failure. In this case, you can also observe a periodic restoration of the functionality of the device, that is, a temporary drop in its efficiency does not affect continuous operation; Photo - broken hose
2. If the vacuum cleaner hums, but at the same time it normally sucks up debris and dust, then the cause is a malfunction of the engine. Basically, all failures associated with weakening of power relate to the motor device;
3. If there are no loud sounds during operation, but the vacuum cleaner does not suck in the usual amount of debris, then the hose is not tight. We draw your attention to the fact that the problem may lie both in the violation of the integrity of the corrugation, and in the breakdown of the receiving brush.

You can disassemble a standard Electrolux, Philips, Thomas or any other vacuum cleaner for repair using the following instructions:

At the same time, 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, therefore, in addition to the steps 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 cable. Due to the fact that the cord is constantly in an active state (it is pulled from room to room, is under constant tension), it quickly wears out. To check its performance, you can use the most common multimeter. After finding the place of fiber fracture, replace the faulty section or cut the cable to the required length.

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

Photo - washing option

The operation of a standard "dry" vacuum cleaner is a tandem of two motors. One is the motor and the other is the motor that makes the brushes of the first motor 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 (for example, 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, replacing any broken internal part with a working one is easy. 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 item of household appliances. Most homeowners today can no longer imagine their life without a vacuum cleaner, because it saves time and also helps to keep the house tidy and clean. Do-it-yourself vacuum cleaner repair, like the rest of household appliances, is a common practice, because all appliances have a sad tendency to break. The cause of 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 it is necessary to purchase a new one, because it is quite possible to repair this technique with your own hands.

• Typically, the reason your vacuum cleaner is out of order is due to engine failure. A similar 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 breakdown of the hose. Another important sign that the tightness of the hose has been compromised is the weak and quiet operation of the device. In this case, the situation is much simpler - read how to repair a vacuum cleaner hose with your own hands.

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

• Slow suction speed, as well as a drop in operating speed, are caused by bearing failure. Proof that these particular components are out of order 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 the air currents.

Important! Often the cause of problems with household appliances and their failure are voltage drops in the power grid. 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 dust compartment cover. This cover is secured with two screws or other threaded connections. It is necessary to unscrew the screws using a screwdriver with the required section, clockwise.
• After removing the sealing grill, detach the control unit as well as the dust container cover.
• Depending on the model and configuration of the vacuum cleaner, the dust collector is either simply removed or unscrewed. There is a waste collection system under the dust collector, under which the body is connected directly to the engine.
• To access the motor, separate the housing from the base of the instrument.

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

• The engine itself is protected by a special rag gasket, which is attached directly to the inlet of the intake hose.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 have to unscrew the screw terminals.

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

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

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

• Belt slips. Check the tension with which the belt is tensioned. If the belt is loose, replace it with a new one.
• Check your bearings for ease of rotation of the roller brush. If it does not rotate well, replace it or lubricate it.

1. The plug is not plugged into the outlet. Check if the plug is firmly plugged into your outlet. And also you should make sure that there is voltage directly in the outlet.
2. No electricity. Check the power panel, quite often you can see a knocked-out circuit breaker or blown fuses there.
3. The plug or fuse is defective. Check that the plug is connected correctly, as well as the fuse that is built into the plug, if any.
4. Broken power cord. It is imperative to check the power cord; for this, disassemble the vacuum cleaner, find the place where the end of the cord is plugged in and ring its cores to determine if it is broken. Replace it if necessary.

Important! If the problems turned out to be very serious and the repair will cost about the same as the purchase of 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: