What to do if the multicooker does not turn on or does not work?

When individuals purchase a new kitchen assistant like a multicooker, they often fail to consider the possibility of it breaking down. Only later do they find themselves questioning what to do if the multicooker stops working and how to fix it. This article aims to provide information about the most common malfunctions of these devices, potential solutions, the reasons why they occur, and proper operating guidelines.

The principle of operation of the home multivarka

To repair any device, one must possess knowledge of its functioning principle and internal structure. Multicooker is no exception to this rule. Each model of these appliances incorporates two sensors that dictate their operational direction. These sensors are connected to a set of wires, which, in turn, link them to the circuit board (commonly known as the control chip), typically located underneath the control panel. If the display panel remains unlit, it could indicate a faulty or disconnected power supply.

Within the chip’s memory itself, the manufacturers have integrated the following:

• Temperature readings that are necessary
• Time intervals for step-by-step cooking recipes
• Actions to control the heating component

If we consider the functions of the sensors that allow you to create an algorithm for the device’s actions:

• The first sensor, located on the back side of the main button of the device, is equipped with a thermistor that often requires delicate handling by service professionals.
• The second sensor is typically located within the power cover and it is recommended to refrain from touching it without assistance from service technicians when attempting to identify malfunctions.
• One wire from the power supply is connected to the control relay, which sends a signal to the heater to turn it on or off. The other wire, connected to the relay armature, protects the contacts from voltage spikes and completes the circuit for the heater.
• On the control board, there are counters that keep track of the total number of times the control panel has been pressed. This information is used by the program to select specific data for its operations.

Multicooker does not turn on: causes and solutions

When considering why the multicooker refuses to turn on or suddenly stops cooking, it is important to focus on the underlying reasons for these malfunctions. These causes can vary in nature and characteristics.

Check whether the plug is inserted into the socket

If your home multicooker is not turning on, there’s no need to panic right away. The cause could be something as simple as it not being connected properly to the power supply or forgetting to plug it into the socket. It’s common for the plug to accidentally get disconnected from the power supply the day before, especially after cooking with another appliance that required the socket.

Before using the multicooker for the first time, it is crucial to thoroughly read the instruction manual to ensure proper operation. Even simple mistakes like incorrect connection or improper bowl installation can cause the device to malfunction. If incorrect actions are detected, the device may:

• reset its settings;
• not respond to commands;
• emit audible signals;
• display error codes;
• switch modes on its own.

Sometimes, simply disconnecting the device, checking the bowl installation, and reconnecting it can solve the issue. However, there may be more complex reasons for the malfunction, such as:

• the appliance detecting a fault that triggers its safety functions;
• Incorrect usage, the appliance may not be compatible with the bowl or may be inserted incorrectly;
• Loose or liquid substances entering the mechanism;
• Set temperature modes must be followed when cooking different types of food (if the appliance was in "frying" mode and is switched to "cooking" mode, it needs to cool down first). Otherwise, the overheating protection will be activated;
• In cooking or stewing modes, steam supply is necessary. Even if the recipe doesn’t call for water, a small amount should be added to create steam. Otherwise, the overheating protection will be activated again;
• Following the recipe and using the correct proportions of ingredients is important. Clogging of the pressure regulating valve can also lead to improper functioning of the multicooker.

Low or no mains voltage

If the multicooker is not heating up, there are often several reasons for this issue, such as voltage fluctuations in the power network. The device may display an error indicating incorrect operation or it may not turn on at all due to insufficient voltage. It is important to check if there is light in the apartment and wait for the power supply to be restored.

Multicookers are typically wired for low power, typically not exceeding 3.5 kW. If the wiring is undamaged but the appliance is not functioning, the issue may lie elsewhere. However, if there is fluctuating voltage in the network, the device’s wiring may display an error code corresponding to the issue (all error codes are usually indicated in the manual).

Thermostat failure

Voltage surges typically have a negative impact on the performance of fuses, which may burn out as a result. In the event this occurs, it is necessary to replace the blown fuse. To accomplish this:

• Begin by opening the internal components of the multicooker;
• Locate the heater;
• Take apart the button, revealing two colored wires, adjacent to which lies a fuse covered by a special insulating tube;
• Use wire cutters to remove the blown fuse, and then insert a new one in its place.

When a malfunction occurs, the display screen usually shows a combination of numbers and letters, which serve as an error code. By decoding this code, you can identify the specific malfunction that has occurred.

Repair and service specialists are usually familiar with the values of all error codes. Some of the most commonly encountered codes are often listed in the appliance manual. For example:

1. E0, which indicates a broken wire on the temperature sensor or a poorly fitting silicone gasket on the lid;
2. E1, which may be caused by moisture infiltration, a faulty heating element, or clogged relay contacts;
3. E2, which indicates a short circuit in the temperature sensor or broken wires;
4. E3, which may be caused by moisture inside, a broken temperature sensor wire, or a missing bowl;
5. E4, which may be caused by a clogged pressure sensor or a chip fault.
6. E5, the system will automatically shut down in cases of overheating.

The E3 error indicates the presence of moisture inside the system.

Microcircuit broken

One possible solution for resolving the issue with the device malfunction is to clean the contacts of the thermorelay, which is responsible for heating the bowl. Accessing the thermorelay can be somewhat challenging as it requires disassembling the entire device, locating it, unclamping the contacts, and thoroughly cleaning it using sandpaper.

In the case of encountering error codes on the chips, it is crucial to carefully examine and inspect them. Some common malfunctions that can be identified include:

• Resistors becoming blackened.
• Capacitors experiencing bloating.
• Tracks delaminating.
• Soldering seams being compromised.
• Fouling occurring.

If any of these issues are detected, it is necessary to repair or replace the corresponding parts and restore soldering tracks on the microcircuits.

Boiling liquid entering the bowl or overloading it can cause oxidation of the device’s contacts, which often results in the multicooker not turning on. To rectify this issue, disassemble the device by unscrewing the screws on the bottom cover. Use a soft brush soaked in alcohol to clean the contacts from dirt and grease residue, and then use sandpaper to further clean them.

The timer in the multicooker serves the purpose of counting down the cooking time and also allows for delaying the start of cooking. If you encounter any issues with the timer, it may disrupt the proper functioning of the device clock in the following situations:

• The timer fails to work on certain cooking modes.
• The timer does not function for the delayed start feature.

It is important to note that the timer typically initiates its countdown once a specific temperature is reached inside the cooking bowl. To ensure optimal performance, it is advisable to close the multicooker lid, allow the bowl to heat up for approximately 15-20 minutes, and then proceed to load it with food.

Before getting in touch with the service center, it is recommended to perform a series of steps:

• Disconnect the device and attempt to plug it into another power outlet (if the issue is with a faulty outlet, the device will function properly);
• Inspect all cables for any signs of damage or possible detachment;
• Refer to the instructions to ensure that correct procedures are being followed;
• Attempt to clean the multicooker by washing it, thoroughly drying it, or wiping it with a towel.

If none of these steps resolve the issue with the device’s operation, then it is necessary to contact the service center. However, it is important to keep in mind that if the device is still covered under warranty, the service center may refuse to provide free service and repair if the device has been opened by the owner at home.

Watch the video demonstrating the process of fixing the multicooker.