The first sign that distinguishes the technique of imaginary foreign manufacture, interpreted by forum users as showing an affinity for the CIS, is non-repairability. When disassembling, you break a decor detail, you have to buy a special tool, endless tricks. Western personal computers have not been awarded such a sophisticated (bad) security system. It seemed that static voltage could burn out the lion's share of the periphery of the motherboard. Both screws of the Redmond home multicooker, covered with a colorful warranty sticker (easy to soak off), are extravagant. Shielded with film, you will have to put your home multicooker in a double boiler (just kidding). The sophistication is designed to deceive the cunning handy Russian peasant who easily bypasses the three degrees of protection. The impression formed by the product is spoiled. Today we are discussing the repair of the Redmond multicooker with our own hands.
Below we will consider the features of the Redmond multicooker. Let's bypass expensive models - we believe that not everyone has such - we will deal with the standard, sold at a reasonable price. Typical set of programs, average cost, uncomplicated appearance.
The Redmond home multicooker is distinguished by the complete absence of screws, screws from the outside. Improves appearance. The body consists of a plastic bottom with a rim surrounded by a metal wall. No screws are attached to the base (hidden by an intricate label explaining the warranty period, forget the decor), plastic teeth. It is carefully covered with a transparent piece of plastic so that the paper is not soaked by the cooking vapors. Good - food won't stain the paper. Hence, a Redmond home multicooker will look great. It is easier to wash the case, liquid products are allowed without fear of losing the right of warranty.
We emphasize. The discussed screws constitute a decorative element. The base is fastened with hidden teeth that cover the perimeter.
One screw is cross-shaped, the other has a triangular hole. It resembles an Egyptian pyramid only with fewer faces. Moreover, the standard nozzle has three slots, the spreading angle of 120 degrees fails. You will certainly rip off the head. Avoid pressing, otherwise the wall of the Redmond home multicooker will bend inward, the presentation will be lost. Providence is delightful, provoking a slight contempt for the ingenuity of the designers. Insert both screws triangular, making it difficult to access. A non-standard head is more expensive, a single screw is not enough to keep the walls in place. Delightful, thought out to the smallest detail, the repairmen cannot be stopped! The triangular bolt is fastened from the inside with a nut to the wall. The bottom is simply glued, sits on plastic teeth (at the first acquaintance with the equipment, not knowing the features, you will rip off the head, you will lose the right of warranty).
This is why it was impossible to disassemble the Redmond home multicooker. Even knowing the focus, it is extremely difficult to knock out equipment without damage.Do-it-yourself repair of the Redmond multicooker will most likely spoil the presentation.
From below, the cover is attached with one screw to the inner shell of the case by the bracket, resulting in a sandwich:
The bottom is made of plastic, glued to the outer walls of a thin sheet of steel. Rolled over itself, forms a cylinder. It bends and breaks easily. The inner walls of the case are formed by high-quality steel, strong, and the shape resembles a bowl more than the one in which they cook. In the middle of the bottom there is a hole where the main button wire goes. The heating element is a washer (figured cut out disk), is attached to the compartment with three screws equipped with lock washers. One contact goes to the plug connector, the other comes from the switching power supply board containing the relay controlled by the central circuit.
To fix the main button on the heating element disk there is a steel cylinder to which the die is attached. There is a spring between it and the main button. There are two sensors of the Redmond multicooker. The first took a fancy to the cover (top), the second from the bottom. The first one is hidden between the walls. There are three conductors under the plastic loop:
The latter is needed in case steam gets inside. For fans of experiments, we inform you: if the main button is covered with cereals, the damage will take a long time to appear. The heating element disk hangs over the void. To the side, at the edge of the bottom, there is a power board on four racks. It is located at a certain height from the surface with the electronic filling down. In addition, the top is protected by a flat cover. There are holes in the bottom of the Redmond home multicooker, so if you spill liquid, it is highly likely to wet the table. Will close the plug, socket. The current will immediately go to ground if the device is correctly connected. Otherwise, as long as the fuses go out, households will suffer. Take note: liquid spilled inside, avoid taking with your hands at the same time:
It is dangerous to approach a home multicooker while food is available. It is safer to turn off the switch of the driveway flap, the junction box machine, rather than risk your life. Stop trying to pull out the plug, it could become dangerous.
There is also a step voltage. The cook must avoid the potential for touching. From the place of breakdown of the cable laid underground, they move away in a goose step. The heel of the leg pulled forward is placed on the toe of the standing leg. Security is ensured. On its way, the current forms a potential difference on the surface. The voltage drops evenly along the length. The longer the stride, the higher the potential difference between the legs. The probability of breakdown of the insulation represented by the soles of the shoes increases, the person will receive an electric shock. The principle works in the kitchen until the fuses burn out, or the dangerous appliance is not turned off automatically.
In addition to the tension of the step, physicists have introduced into use the tension of touch. Hands and body will become points of electric shock. The most dangerous path of current runs through the heart (hand-arm) region.
Forgot to mention the thermal fuse! It is not known whether many models of Redmond home multicookers support protection against empty inclusion, the hostesses are sure: this action should be avoided. From the plug connector, the terminal goes directly to the case, it is attached in three places:
With the correct electrical connection of the Redmond home multicooker to a European outlet with side petals, nothing bad will happen in case of breakdown. If there is no grounding, you get a chance to get an electric shock. Until the fuses are blown out, the person will surely die, collapse, receive a thrashing. More than one installer took the battery, working with an electric drill, never ended up with anything good. The thermal fuse is attached to the compartment body with a steel bracket, tightened with a bolt to the wall.The wire is protected from above by a fabric cuff. Thermal fuse inside.
The power board with the transformer is connected with one conductor directly, the other through a thermal fuse with a plug connector. An overheated device will certainly be turned off. This will happen on empty boot. The smartest home multicooker is able to turn off according to the sensor readings, cheap protective options are deprived. Please note that the lower sensor wire is protected by a heat-resistant cloth. Protects insulation from breakdown when accidentally touching the heating element.
As for the switching power supply of the Redmond home multicooker, there is no fuse. We believe that because the heating element is powered by the relay directly by the 230 volt network, the electronic boards do not need high voltage and current. And then they put a trivial diode bridge, after the secondary winding with a resistor, a capacitor to filter the ripple.
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The "smart filling" is located on the electronic board located on the inside of the side wall of the case. It is the value of a home multicooker, everyone can assemble a switching power supply, and everyone can equip a relay with their own hands. There are no special instructions for repairing the power unit, it's bad that there is no fuse slot. It would be possible to connect a light bulb, evaluating the reaction, to judge whether the malfunction of the Redmond home multicooker has been fixed. One thing is alarming. Judging by the lack of fuses, nothing in the Redmond home multicooker can burn out. This is good!
We hope that the Redmond multicooker device has been painted in abundance. We apologize that without a photo, we will fix the process next time. Self-repair of the Redmond multicooker is rarely required, unless the cook is defective. The brand is of high quality, the design is disgusting. By the way, they did not say how to remove the inner case. Set on plastic teeth on the folded edge of the side wall behind the plastic top frame. It is difficult to read, but take the Redmond home multicooker in hand, the question will become clear. Here's another thing. The edge of the side wall of the Redmond home multicooker is deliberately made sharp. When you remove the prongs, most of it will cut. Such a ... protection from smart guys!
With such a description at hand, readers, of course, will fix the Redmond multicooker. It is more difficult to get a new heating element. In some designs of electric kettles, the spiral is rolled inward. It's good that Redmond doesn't do that with multicooker.
It's great when the cooking process is mechanized, then the creation of culinary masterpieces brings sheer pleasure. Alas, not every manufacturer puts in detailed instructions for maintenance. Experts in the field of home appliance repair will offer several ways to disassemble a multicooker of different models. With these tips, it will be great to save your family budget.
Kitchen assistant from the "Moulinex" company
In most cases, it will not be difficult to disassemble the multicooker, because they are assembled according to approximately the same scheme. For a home craftsman who at least once faced the repair of electrical appliances, where the basis is a heating element, the principle of the device will be clear. Below are the main external parts of the enclosure:
Sealed lid with elastic band, on top of which there is a removable steam valve.
A cooking bowl (in older models it is built into the body, which is not very convenient).
Metallized case, with plastic elements (the appearance and finishing materials completely depend on the cost of the device: there are completely iron models in the flagship models).
Button that opens the lid.
Base (bottom).
Inside, under the bowl, there is a heating element disc (TEN).
Soft buttons, control panel screen (sometimes absent, in budget lines).
Handle for easy carrying. It can be located on top or on the body.
The device and equipment of the multicooker Polaris, middle class
The figure shows which wires are at the bottom of the multicooker. Power is supplied via red wires. A switch (which puts the device into operation) and a thermal fuse (protects against overheating) are installed in series. The voltage from the thermal fuse is supplied to one terminal of the heating element, to the power supply board. The white wire is directly connected to the power supply. Through it, voltage is applied to the second output of the heating element, closes the relay contacts.
Wires that supply voltage and ensure operation
Under the heating element there is a power supply unit with standard wiring. He is the most loaded part of the multicooker. Its tasks include converting the current into 220V to direct current 5V and 12V (the first saturates the control unit with power, and the second - the switching circuit, activates the relay). The home network supplies power to the three-pin connector located at the bottom. The yellow-green wire stands out: this is the ground.
A schematic diagram of the internal device of the Redmond RMC-M23 multicooker
Often, manufacturers mount a universal board in the device for the entire model line. Naturally, the technological nuances are kept secret, because firms do not expect to introduce self-taught masters into household appliances. When looking at the photo, an isolated metal round disc catches the eye. This is a battery that, when disconnected from the mains, saves the preset cooking programs in memory.
The figure shows the battery below (yellow)
Temperature sensors are located in the lid and bottom of the product - therefore, you need to disassemble the multicooker with extreme caution so as not to disturb these thin wiring. One wire is connected to the touch screen. A lot depends on these details - they are the “brain” of the device. Damage to the temperature sensors can lead to malfunctioning of programs and cooking modes. Moreover, the kitchen assistant may not turn on, because the required set of heat indicators will not occur.
The device is disconnected from the network, waiting for complete cooling.
The lid is wiped off grease with a soft cloth.
If the fat is not rubbed off, use mild dish detergents, without abrasives.
Wipe dry the lid.
The cover of the appliance is opened.
In the area of the lid, two plastic clips are found. They need to be pressed and pressed towards the center.
The upper sector is pulled towards itself, and then sharply downward.
All internal parts are thoroughly washed from food debris.
To put the part in place, do the opposite. If everything is in place correctly, the clips will make a click when they are seated correctly.
If the product breaks down and you need to see the internal details, and the master does not know how to carefully disassemble the multicooker, then:
First of all, wipe all soiled parts of the product with a rag.
The electrical appliance is turned over with the lid down.
The bottom cover holds the screw, unscrew it. Dismantle the bottom.
All removable wires going to the board are disconnected.
Unscrew the screws holding the heating element.
They remove the thermocouple, all the microcircuits.
Unscrew the screw holding the top cover (when the model does not provide for removal). Then, squeeze the cover with a screwdriver, remove the temperature sensors.
Remove the plastic snap rings (if present around the edges of the metal case).
The inner walls are removed from the outer ones.
When considering the Redmond model range, you can establish: the manufacturer takes care of the appearance of household appliances, reliably masks all the screws and bolts. If we take the multicooker of this company as an example of the middle class, then you can find that screws - trompe l'oeil are placed on the case for decoration. They only play an aesthetic role. The main ones are securely hidden under the plastic.
On some models (Mirta, Polaris, Redmond, Vitek, etc.), screws holding the upper part with a triangular hole. The most common mistake newbies make in repairs is to arm themselves with a cross, apply force, press on the hull.
From mechanical stress, dents are formed, which worsen the external condition of the device. Therefore, it is wiser to use in this case a triangular socket screwdriver, the length of which is from 100 to 120 mm.
The flagship device is manufactured by Moulinex. The build quality is solid. The main advantage is the ease of removal of the inner cover. The entire removable structure is held by a silicone insert, which, thanks to its elasticity, tightly holds the parts. This design is more aesthetically pleasing than external screws.
Cutting edge model from Moulinex
In budget-class multicooker Delfa, Polaris, Rotex, Scarlet, Redmond, the button that closes the lid often breaks. Masters attribute this feature to birth defects. It happens that the button does not lead due to improper use, but due to exposure to high temperatures. If the device is under warranty, then it is better to contact the service. To cope with this nuisance, you will have to disassemble the case and break the seals.
When closing the lid, the hostess must first hold down the button, and after covering it completely, release it. Less stress on the part reduces the chance of breakage.
Broken open button
Two repair options that do not require complete disassembly:
The surface is degreased, glue is applied and magnets are applied so that after closing the lid they meet. You can take one large one, but it is better to take four small ones to connect them in pairs.
In the dropped button, two small holes are made for the stem. The same is done in the case, at the place where the latch is attached. Then, thread the stem through the removable part. Gently insert the structure into the body.
Parts are purchased in the store, the use of self-made inventions is not desirable. Using these can lead to fire! Moreover, the price does not bite on elements that can be replaced at home. If adequate operation of the device is disrupted, system errors appear on the screen. Reading them, it will become roughly clear which part needs repair and replacement.
E1, E2 - there have been changes in the operation of the power supply unit, the heating element, the lid is not tightly closed.
E3, E4, E5 - the device has overheated and the protective function has worked, the temperature sensor has broken. In some models, with this breakdown, a picture is not displayed on the screen. If we are talking about the "Redmond" company, then a damaged wire that goes through the body and the cover can become a possible ailment. We disassemble, remove the plastic at this gap (snap off with a screwdriver) and measure the resistance. The next step is to disassemble the bottom and ring the clamps under the heating element.
All devices are equipped with fuses that will blow in any situation that, in the opinion of the developers, could lead to a hazard. For example, if the hostess turns on the device, while forgetting to install the bowl inside.
When purchasing a multicooker, be sure to familiarize yourself with its characteristics: the presence of a removable cover, whether the rubber bands must be replaced at home, how reliable the latch is. To prolong the service life of the appliance, observe hygiene inside and out, avoid the ingress of cereals and food residues, operate as intended and follow the instructions.
Lid, with elastic fastening
In order to accurately disassemble into parts, it is important to know how the multicooker works. It seems that this ordinary-looking saucepan does not have a complex scheme, but it is not. There is a fragile electrical part inside. It can be easily damaged if it is roughly applied to the case.
Most modern housewives know about the benefits and effectiveness of Redmond multicooker firsthand. This multifunctional kitchen fixture has provided thousands of homes with wholesome, nutritious, hot and delicious food. Everyone who has used this device at least once has become convinced of its effectiveness. However, like all electrical appliances, it is susceptible to various breakdowns.First of all, malfunctions of the device are attributed to a factory defect. Nevertheless, it sometimes happens that the device breaks down during operation. It is then that most people think about repairing a multicooker with their own hands. It is possible to perform it at home, but for this you have to take into account several nuances.
In order to protect the Redmond multicooker from breakdowns and not think about how to fix it with your own hands, you must comply with the requirements prescribed in the device manual.
The first step is to highlight the sequence of stacking products before cooking. Remove the food bowl from the Redmond multicooker before placing it. Otherwise:
liquids poured into the bowl, through negligence, may spill inside the mechanism;
forgetting that the container is on the table, you can start pouring liquid into the inside of the equipment, thereby drowning the mechanisms or filling them with bulk products.
Most malfunctions occur due to contamination of the device contacts. This can result from the ingress of liquids or bulk solids into the interior of the device, such as:
This type of breakdown is the most harmless and it will be easy to repair the multicooker with your own hands. At the same time, it is worth remembering that until the end of the cleaning and assembly process of the structure, the device should in no case be connected to the network.
To clean the device with your own hands, it is important to study and follow the sequence of actions.
Remove the metal (plastic) cover and other visible items attached with screws.
Clean the microcircuits by turning the device over and gently shaking it off.
Secure the cover and other top elements.
In the case when the clogged contacts are at the bottom of the device, you must:
unscrew the screws securing the bottom cover;
disconnect the cables connecting the heating and software boards;
remove the heating element by unscrewing the screws;
carefully remove the internal thermometer without damaging the device;
clean chips and boards from bulk products.
Observing the rules of disassembly, cleaning the device will not cause much trouble.
In some cases, Redmond multicooker may stop working, displaying a specific alphanumeric error code. The ability to decipher the code will allow you to understand the cause of the breakdown and start fixing it. Information for decryption is known to manufacturers, as well as craftsmen specializing in the repair of household appliances.
Certain errors displayed on the screen indicate serious malfunctions. Nevertheless, there is a list of codes that ordinary users have explored through trial and error.
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Thus, craftsmen managed to find out that the message "e0-e4" displayed on the screen signals faults associated with short circuits, as well as breaks of temperature sensors located above or below. Also, the problem may be related to thermal fuses. Various manufacturers set their own codes, so for repairs on your own, you will need to remove the device case and use the multimeter's capabilities to detect an open by measuring the level of contact resistance.
Another common reason that a multicooker may need to be repaired is a clogged thermostat responsible for heating. In most cases, it is located at the bottom of the device, next to the power board. To get to and repair the thermostat, you need to remove the bottom of the structure. Before cleaning, the copper contacts must be slightly unclenched, and then wiped with zero emery cloth or thick paper. The reason for such a breakdown may be the accumulation of moisture that has penetrated into the mechanism due to the liquid spilled past the bowl. Condensation is also possible.
A thermal cutout for a multicooker is one of the most important parts of it.It is a small piece of wire that is indistinguishable from a resistor. The conductivity index is 10-15 A, based on the type of element. The highest temperature is 150-170 degrees. Exceeding the permissible limits will lead to a blown fuse and an open circuit, which can be determined using a multimeter.
The most important part of the Redmond multicooker is at the center of the device. Most modern models are equipped with several thermal fuses covered with protective plastic insulation. To detect a blown fuse, it is necessary to dismantle the bottom cover of the device.
After removing the bowl, you can see the button: outwardly, the assembly resembles a steel mushroom, the lower part of which is covered with a spring. The circumferential surface is the heating element of the Redmond multicooker. Thermal fuses are located near the main unit.
In this case, the plastic insulation is visible. Some manufacturers secure them with clamps screwed to a screw, but in most cases, the fuses are simply dangling in the air.
Since the factory fastening of the fuses is carried out by crimping, the use of soldering is strictly prohibited, since a red-hot soldering iron can burn out the heat-sensitive fuse. To determine which particular element is defective, as well as whether at least one of them is working, use a multimeter to measure the resistance without removing the fuse. After detecting a malfunction, the fuse must be replaced.
Modern multicooker is equipped with two electronic boards:
The main board, responsible for heating, is located at the bottom of the device, while the control board is located in the heart of the device - inside the working cylinder.
A close inspection of the microcircuits reveals several signs of problems:
delamination of tracks;
violation of solder seams;
blackening of resistors;
swelling of capacitors;
formation of carbon deposits.
Video (click to play).
If one of the items on the list is found, it is worth repairing or replacing parts, restoring the soldering or tracks of the board using a zero skin and tinning the damaged places. Jumpers can be made from burnt-out resistors using their legs. To secure the soldering and tracks, it is recommended to use a varnish that protects the circuit from leaks and oxidation.
