Most modern housewives know firsthand about the benefits and effectiveness of Redmond multicookers. This versatile kitchen appliance has made it possible to provide thousands of homes with healthy, nutritious, hot and delicious food. Anyone who has used this device at least once, in fact, was convinced of its effectiveness. However, like all electrical appliances, it is subject to various breakdowns. First of all, failures in the operation of the device are attributed to a factory defect. However, sometimes it happens that the device breaks down during operation. It was 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 will have to take into account several nuances.
To protect the Redmond multicooker from breakdowns and not think about how to fix it yourself, you must follow the requirements prescribed in the instructions for the device.
The first step is to highlight the sequence of laying products before cooking. Before laying the bowl for food must be removed from the Redmond multicooker. Otherwise:
- liquids poured into the bowl may inadvertently spill into 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.
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Common causes of damage to Redmond multicookers
Most malfunctions occur due to contamination of the contacts of the device. This can be caused by liquid or loose products entering the inside of the device, such as:
- cereals (rice, buckwheat);
This type of breakdown is the most harmless and it will be easy to repair multicookers with your own hands. At the same time, it is worth remembering that until the end of the process of cleaning and assembling the structure, the device should in no case be connected to the network.
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How to clean the Redmond multicooker?
To clean the device with your own hands, it is important to study and follow the sequence of actions.
- Remove the metal (plastic) cover, as well as other visible elements attached with screws.
- Clean the chips by turning the instrument upside down and gently shaking it off.
- Attach the cover and other top elements.
In the case when the clogged contacts are located at the bottom of the device, it is necessary:
- unscrew the screws securing the bottom cover;
- disconnect the cables connecting the heating and programming 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.
Following the disassembly rules, cleaning the device will not cause much trouble.
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Software errors of Redmond multicookers
In some cases, Redmond multicookers may stop working, giving a specific alphanumeric error code. The ability to decipher the code will allow you to understand the cause of the breakdown and begin to eliminate it. Information for decoding is known to manufacturers, as well as craftsmen specializing in the repair of household appliances.
Certain errors displayed on the screen signal serious malfunctions. Nevertheless, there is a list of codes explored by ordinary users through trial and error.
Thus, craftsmen managed to find out that the message “e0-e4” displayed on the screen indicates malfunctions associated with short circuits, as well as breaks in temperature sensors located above or below. Also, the problem may be related to thermal fuses. Different manufacturers set their own codes, so for repairs on your own, you will need to remove the case of the device and use the capabilities of the multimeter to detect a break by measuring the level of contact resistance.
Another common reason for which multicooker repairs may be required 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 sandpaper or thick paper. The cause of such a breakdown may be the accumulation of moisture that has penetrated into the mechanism due to liquid spilled past the bowl. The formation of condensate is also possible.
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What is the function of a thermal fuse?
The thermal fuse for the multicooker is one of its most important parts. It is a small piece of wire, 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 the fuse burning and breaking the electrical circuit, which can be determined using a multimeter.
Finding and replacing a thermal fuse
The most important part of the Redmond multicooker is located in 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 knot 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. The thermal fuses are located near the main assembly.
In this case, the plastic insulation is visible. Some manufacturers secure them with clamps screwed to the screw, but in most cases, the fuses simply hang in the air.
Since the fuses are factory-mounted by crimping, soldering is strictly prohibited, since a hot soldering iron can burn a heat-sensitive fuse. To determine which element is faulty, and whether at least one of them is working, use a multimeter to measure the resistance without removing the fuse. After a malfunction is detected, the fuse must be replaced.
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Microcircuits in modern Redmond multicookers
Modern multicookers are 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.
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Upon careful inspection of the microcircuits, several signs of problems can be detected:
- detachment of tracks;
- violation of solder seams;
- blackening of resistors;
- swelling of capacitors;
- soot formation.
If one of the items on the list is found, it is worth repairing or replacing parts, restoring the soldering or board tracks with the help of zeroing skins and tinning the damaged areas. Jumpers can be made from burnt resistors using their legs. To fix the soldering and tracks, it is recommended to use a varnish that protects the circuit from leakage and oxidation.