We repair the hob - malfunctions of various models

Users prefer electric, induction and gas stoves for cooking. If they malfunction, it is better to contact specialists. But, if you have the skills, knowledge and ability to work with tools, you can repair household kitchen hobs yourself.

A hob is a stove with a ceramic or glass-ceramic coating

Types and design of hobs

The hob is an electric or induction hob covered with ceramic or glass ceramics. The following surfaces are currently produced:

• induction They work on the principle of electromagnetic induction. Cookware made from special materials and the burner create a circuit with electrical oscillation;
• spiral. Current passes through the spiral element, then heat is released, which heats the cookware;
• corrugated tapes. The operating process is similar to spiral devices. The only difference is the accordion heater;
• halogen. A stove with a tubular heater filled with halogen vapor heats up in 2 seconds. After warming up, the heating element turns on.

To quickly detect problems during the repair process, it is important to know the structure of the equipment.

How does the hob work?

The main components of the device are burners with contacts for connection and a thermostat. The burners are connected to the control panel via contact wires. Using a thermostat, heating is controlled and power is turned off. The control unit is responsible for executing the main programs. To turn on, use a button, gas tap or cord with a plug.

The main elements of the hob are the burners and the control panel

Types of heating elements of cooking surfaces

Several types of burners are used in hobs:

• induction - they only heat the dishes, while the work area itself is practically cold. Temperature and power can be adjusted from minimum to maximum;
• rapid - spirals that heat up and cool down in 10 seconds;
• halogen - a spiral with a red backlight that heats up in 2 seconds and releases a large amount of heat;
• Hi-Light is a very thin spiral tape that heats up instantly. The high-resistance resistance of the alloy ensures minimal energy consumption - up to 2 kW per hour;
• gas burners - automatically supply fuel, are smoothly regulated and heat up gradually;
• electric - cast iron pancakes, the heating of which is indicated by a red circle in the center.

Interesting to know! Depending on the diameter of the heating element, the flame of gas models can burn in 2-3 rows (“crowns”).

The stove does not turn on and there is no indication

First, you need to check the fuse, and then the mains switch. The next step is to check the connection between the control unit and the power board. Then between the control unit and the touch panel. If a failed module is detected, it must be replaced. If replacing the module does not help, the entire coil block is changed.

Evidence of problems in the touch panel can be the error code “E9” that appears on the LCD monitor of the device. Based on the list of error codes, it means that the touch control panel is faulty. It is recommended to disconnect the device from the network for 30 seconds. If the error occurs again, the control panel changes.

Hob fault groups

Regardless of the type of heaters, the main failures of the panels are similar. Repair of your hob is necessary when typical faults are detected.

A malfunctioning hob requires immediate repair

Damage to heating elements

Parts damaged mechanically are repairable. For halogen models, the heater needs to be replaced, and the induction winding is almost not subject to failure.

Failure of switching elements or conductors

You can troubleshoot contacts, thyristor switches, relays in 1 day. Repair work will not be difficult for you if you know the design of the slab and have the appropriate skills.

Electronic circuits

If the user does not know how power supplies, controllers, generators and transformers work, it is better to entrust the repair to a specialist. The burnt element must be dismantled and replaced with a new one.

Important! Before starting work, you should check the power from the outlet, the presence of moisture on the panel or dirt on the sensor unit. They may interfere with button sensitivity.

Error codes

Modern induction cookers are equipped with information displays and self-diagnosis systems. If any problems are detected, the device itself will tell the user what happened. Error codes for slabs from some manufacturers look like this:

For users with repair skills and a sufficient level of knowledge, the error code will show where exactly the problem should be found. For others, this is an indication that they should seek qualified help.

Electric hob - common faults

During operation, equipment may malfunction due to voltage fluctuations, improper care or manufacturing defects.

In case of any breakdown of the electric hob, you should first check whether the power supply is normal

Repair of a built-in electric kitchen hob is relevant in the following cases:

• The hob does not turn on. The phenomenon occurs due to a lack of voltage in the outlet or faulty parts. The socket is checked with a multimeter. If everything is fine with it, there are risks of fuse burning, contact breakage, cord chafing or squeezing, heating element breakdown;
• One or two burners on the hob are not working. The heater contacts that can be soldered have broken. The burnt-out heating element is replaced with a new one. If the contacts are broken, the control unit switch is repaired or replaced;
• The burner does not heat up well. The problem is due to overheating of the heating element, thermostat, or thermostat. Some parts are repaired, but the thermostat needs to be replaced;
• The fuse has blown. The failure occurs when the voltage fluctuates in apartments without ultrasonic systems on electric mains. The part is replaced, especially since its cost is inexpensive;
• the sensor does not work. The element is checked with a multimeter. If it does not respond to the device, the panel is changed completely. Sensor breakdowns occur due to improper operation of the stove or burnout of the control unit after cleaning with saline solutions;
• The hob gets very hot, works, and does not turn off. In 95% of cases the thermostat fails. The part is not repaired, but only replaced.

Glass on glass-ceramic surfaces sometimes cracks. The cause of the breakdown is a manufacturing defect or improper operation. Repair work is carried out exclusively by a master.

Important! Before inspection, electrical equipment must be disconnected from the network.

Control problems

The most difficult case is problems with the control board. There is little you can do on your own. How to understand that the control unit is at fault? There is no signal when pressing buttons. If the power turns on, but then there are no sounds or visible changes in status when setting operating modes, most likely there is a control problem. In this case, repairing the hob consists of simple steps.

If the stove does not listen to you, first thoroughly clean the surface - dirt can cause this behavior. Next, you should check your power settings. If the mains voltage is too low, the control operation may be affected.

The control panel is the most difficult area to repair

If the voltage is normal and there are no changes, we try to restart the programs. To do this, turn off the power to the hob. If it is connected through a plug with a socket, remove the plug. Switching off with a button is not enough. If you connected the stove through the terminal block, it is easier to turn off the machine on the panel. The stove must remain in a de-energized state for at least 10 minutes. Then you can turn it on and try again. If there was a simple control glitch, this helps, but if the problem is more serious, it doesn’t. If all actions do not bring results, call a specialist.

Induction hob

Despite the build quality, innovation and technology, induction cookers fail. The main device failures include:

• The stove does not turn on or turns off immediately. This is not a breakdown, but a feature of the functionality of the equipment.

There is a blockage on the hob due to unsuitable material or utensil diameter. When removing the pan, the burner switches off automatically.

• heats for a long time and weakly. Incorrectly selected dishes;
• turns on automatically. You need to remove metal products from the stove and remove salt from it. If there is no switch on, the control unit is broken, which is repaired or replaced at the service center;
• the panel doesn't work. The fuse has blown, the power circuit has broken, or parts have burned out.

The main failures of induction cookers occur due to failures in the induction generator circuits. The problem is related to improper operation and is rare.

Pull-out cart

The initial settings can be changed, for example, so that the oven pull-out cart is additionally blocked. Information on how this is done is indicated in the corresponding chapter of the annotation on the use of hobs (specifically in the Basic installation). When the child lock is activated, the cart will lock when the temperature rises to 50 degrees or above. With all this, you can see the Lock symbol on the indicator.

To cancel the lock, press the Key button. You should hold it until the image of the key with text goes off on the screen. Then you can change the options as needed, and also manipulate the cart.

The initial settings can be changed, for example, so that the oven pull-out cart is additionally blocked

It is unrealistic to change oven options when the lock function is active for the safety of children. To do this, you first need to cancel the lock by pressing the Key button.

Gas hob

In a gas hob, you can only repair the electric ignition and gas control system yourself.

Gas stoves are complex and explosive equipment. If you discover at least one of the following breakdowns, immediately begin repairs:

• The burner does not light or turns off. The cause of the failure is clogging of the injectors with product residues, cracks, problems with the spark plug insulation, solenoid valve, thermocouple combustion. Models with automatic ignition do not turn on at low mains voltage;
• The burner goes out during operation. Self-repair consists of cleaning the injectors and adjusting the intensity of gas fuel supply. Extinction is possible due to thermocouple combustion;
• Electric ignition does not spark or click. There is no voltage in the network, the ignition unit has burned out, or the contacts of the connection keys have oxidized. The contacts should be cleaned with alcohol, and the ignition element should be replaced;
• low flame or smoking burners. The jet is clogged or the air damper needs to be adjusted or the injector cleaned;
• It is difficult to turn the adjustment tap. There is grease stuck to the rotary system, which can be washed off with soapy water. The second point is that the graphite grease on the tap has dried out. It needs to be updated;
• The oven does not turn on. The spark plug has worn out, but you should not replace it yourself;
• you can smell gas. Connection failure. The user needs to ventilate the kitchen immediately. Breakdowns can only be repaired by specialists;
• The burner turns off when the handle is lowered. Malfunctions in the gas control system or thermomagnetic valve. The part is being replaced.

Timely detection of gas stove failure is the key to your safety.

The right pair of burners does not work

When looking for a malfunction in a Bosch induction hob or the same stove from another company, you should check the contacts located in the terminal box, as well as the condition of the coil block fuse. If a fuse blows, it needs to be replaced with a new one with the same marking. If there are no positive configurations, check as described above for the left pair of cooking stations.

Also, the error code “E6” may appear on the LCD monitor. This error means that the induction hob is faulty. It is recommended to unplug the unit for 30 seconds and then turn it on again. If error codes reoccur, the control panel will need to be replaced.

Do-it-yourself diagnostics and repair of a hob

Assessing the degree of damage and repairing an electric, induction, or gas kitchen hob is carried out sequentially with your own hands in several stages.

The hob is dismantled after disconnecting the wires and unscrewing the fasteners

Required Tools

For repair work you will need:

• screwdrivers with tips of different diameters for dismantling;
• a screwdriver with an indicator to check the voltage;
• a stationery knife for stripping cable cores or trimming them;
• pliers for cutting wires.

To measure the electrical current parameters, you will need a multimeter. A soldering iron is also used during the work process.

Diagnostic measures

Diagnostics are carried out with or without disassembling the device. In the first case:

• check the voltage with a multimeter;
• inspect the power cord of the switched off stove;
• the cable is tested for integrity and breakdowns;
• contacts are checked - untwisted and inspected for oxidation;
• the fuse is located at the input and inspected;
• The terminal block is tested for damage with a multimeter.

Important!
Check the cable and inspect the fuse after unplugging the appliance. For diagnostics with disassembly you will need:

• disconnect the stove from the power supply;
• remove the panel with screwdrivers;
• lay it on the table, remove the fasteners, and, supporting it, remove the surface;
• inspect the wire for breaks;
• check the thermal relay by tracing it along the wires;
• check the transformer and thermal fuse with a multimeter;
• measure the resistance of the burner - increased resistance indicates burnout.

Important! The contacts of the electromechanical relay are inspected with the cover removed.

When carrying out repair work, precautions should be taken

Specifics of repair work

Activities for repairing electric stoves are carried out in several stages:

1. Removing the lock. How to properly unlock the working hob? Press the key button and hold it for several seconds. The indicator becomes active and the lock disappears from the panel.
2. Disconnecting the device from the network.
3. Dismantling the device using screwdrivers, laying it on a clean surface.
4. Removing fasteners, carefully removing the surface.
5. Checking parts for damage.
6. Installing screw terminals or rivets on a burnt coil.
7. Replacement of parts - thermostat, power relay, halogen burners.
8. Replacement of wiring - an identical wire is selected, assembled and installed with end switches.
9. Installing a new power supply.
10. Changing the control circuit of the hob through a manual unit located outside the body.
11. Assembly and installation of the hob.

Important! Electronics fail due to unstable voltage, local overheating occurs when using the wrong utensils, and moisture on the surface leads to cracks and chips.

How to eliminate the main breakdowns of gas stoves?

In case of problems with the gas hob, you will need:

• install traverses and tighten the screws when the burner axis shifts;
• remove the handle and use a screwdriver to stretch the slots on the rod if the switches are loose;
• disconnect the door cover, tighten the spring and place the axle in the eyelet if the oven does not close tightly;
• repair the tap and nozzle if the oven heats up poorly.

Advice! If there is a smell of gas, check the tightness of the contacts with a soap solution, tighten and lubricate the taps.

Required Tools

To repair an electric and induction hob, you need to have the following tools:

1. Screwdriver Set. In order to carry out many dismantling works, you need to have several different screwdrivers, which may differ in size and type of tip. In addition to conventional screwdrivers, you should pay attention to the need for an indicator that detects the presence of voltage.
2. An assembly knife is often used when carrying out electrical installation work. As a rule, it is necessary for changing the length, stripping wire cores and other similar work.
3. Pliers are often used during installation work. Moreover, they often have a sharp part that can be used to bite the veins.
4. It is often necessary to have wire cutters to work with wires.

In addition, to determine the voltage value, you may need a multimeter. It determines various parameters of the supplied current. A soldering iron may be needed when carrying out repair work.

Recommendations from experts for repairing hobs

1. Screw terminals and spiral rivets are used as temporary measures.
2. The main cause of breakdowns of hobs is failure to follow the manufacturer's instructions.
3. Induction hobs should only be repaired by a specialist.
4. If you don’t have a multimeter, you can use an induction screwdriver for individual sections of the circuit.
5. The hob is dismantled after disconnecting the wires and unscrewing the fasteners.
6. Thermocouples are soldered to the chip or connected via a cord.

Watch a video about the construction of the hob and its repair

Required Tools

To repair an electric and induction hob, you need to have the following tools:

1. Screwdriver Set. In order to carry out many dismantling works, you need to have several different screwdrivers, which may differ in size and type of tip. In addition to conventional screwdrivers, you should pay attention to the need for an indicator that detects the presence of voltage.
2. An assembly knife is often used when carrying out electrical installation work. As a rule, it is necessary for changing the length, stripping wire cores and other similar work.
3. Pliers are often used during installation work. Moreover, they often have a sharp part that can be used to bite the veins.
4. It is often necessary to have wire cutters to work with wires.

How is glass ceramic hob repaired?

Repair of an electric stove with a glass-ceramic panel is carried out by our specialists using professional equipment, tools and original spare parts.
In addition, in our work we use high-quality consumables. At the same time, the cost of the work is not overpriced and is acceptable for all people who want to repair the stove efficiently and in the shortest possible time without unnecessary costs and loss of time. Most often, glass-ceramic stoves require replacement: If the stove breaks down, a full diagnosis and visual inspection is carried out. After identifying a malfunction, the technician repairs or replaces the worn part. Then the functionality of the equipment is checked. In addition, you can always get advice on the correct use of equipment.

We repair and replace parts of glass-ceramic stoves of all brands. For example, Zanussi, Miele, Electrolux, Ariston and others. Each of our service technicians always has with him all the necessary spare parts that may be useful during stove repairs. You can contact us at the telephone number provided. We work every day without breaks or weekends, so anyone can call a technician to your home at any time. To do this, you need to leave a request and specify the type of malfunction.

Today, the popularity of household appliances powered by electricity is constantly growing, but minor breakdowns sometimes occur during operation. An electric stove is present in every modern kitchen - it is the heart of this room. When a kitchen assistant breaks down, many home craftsmen are interested in whether it is possible to repair an electric stove with their own hands?

. Residual heat indicator does not work

You need to run a software test to check the temperature sensor. If it is working properly, the control unit is changed. There are cases when the elements of the LCD monitor shine all the time or not all work. In case of such a malfunction, the quality of connections between the control unit and the touch panel is checked. You can try changing the cable connecting the modules. If this does not help, the control unit must be replaced.

Sources:

https://www.Servicebox.ru/faq/varochnie-paneli/Bosch/ https://technosova.ru/dlja-kuhni/kuhonnaja-plita/blokirovka/ https://setafi.com/bytovaya-tehnika/varochnaya- panel/ne-vklyuchaetsya-varochnaya-panel/ https://samelectrik.ru/remontiruem-varochnuyu-panel-neispravnosti-elektricheskix-i-gazovyx-modelej.html https://tehnika.Expert/dlya-kuxni/kuxonnaya-plita /neispravnosti-indukcionnyh.html

Socket, plug

The problem may not be with the stove itself, but with the socket or plug. The first can be checked by connecting another electrical appliance, for example, a kettle

When choosing a socket, you should pay attention to the rated current. If it differs from that indicated on the machine, the wiring may melt or even catch fire.

For a single-phase network, a classic 32-amp outlet is more than enough.

The chrome elements of the fork should be clean and free of any signs of burning. If there are any, then it must be cleaned, and in difficult cases, replaced. The same rule applies here: buy a plug with an eye on the rated current of the machine.