In detail: do-it-yourself electric oven repair from a real master for the site my.housecope.com.
In this article, I will tell you about everything that you can do with your own hands when your electric stove or hob is broken.
First, let's define what you can do yourself and what not. Plates are electromechanical and electronic. In this article, and indeed on the site, I will not consider electronic stoves and hobs, since the field of electronics ... Let's just say that electricity is just a small piece of electronics in the modern world. I can also say so. To understand electricity, to a greater extent, it is enough to know Ohm's law and understand it. In electronics, even if I now begin to list in simple words, everything will drag on for a very long time. So, regarding the electronic hobs, I will briefly touch on them, but I will not disassemble the repair directly. Before you start reading further, if you are going to disassemble the stove, be sure to read the electrical safety instructions. When you read the instructions just click on the "back" button and you will come back here.
Actually, there are literally several faults and I will divide them into points:
Well, now, let's go in order and consider each point in detail.
To do this, you need a multimeter. The voltage will need to be checked in the outlet (first of all), in the terminal block of the stove, on the burner mode switches, on the heating elements themselves. How to measure voltage with a multimeter is written here.
So, we disassemble the socket for the electric stove and measure the voltage. If it is within 220-240 volts, then everything is in order, but do not rush to close the outlet. Carefully insert the plug into the socket, turn on the hob and check the voltage again. If it suddenly disappeared, then you have a problem on the supply line and not in the stove. If you are using an outlet like the RSH, as in the photo, then turn off the power, make sure it is not there, and do two manipulations.
Video (click to play). |
- It has been very difficult to find a good socket for an electric stove lately. If the socket is behind the stove, I recommend replacing it with U739M clamps. But if you just need an outlet, then you need to pay close attention to the correct connection of wires to it. In the photo you can see how the contact was deformed. This is due to the fact that the wire was simply inserted into the terminal and tightened. It seems that you tightened it tightly, but in fact, the wire is almost not tightened due to the deformation of the contact. Therefore, in low-quality sockets, a ring must be made from the wire and only then tightened. The tightening in this case, at least, will be reliable.
- Next, you need to pay attention to the contacts. In the photo, a blue circle indicates a contact in which the plug will not provide a reliable connection. Therefore, the contact plates must be straightened as shown on the right contact, circled in red, to ensure a secure connection. If the metal is flimsy, then you need to do this every time you pull out the plug (in any case, if you do not bend it, then check the condition of the contacts). All this can be avoided by using U739M clamps or any others like them. Plug in the plug and go to the next step.
In the terminal block, a different burner is connected to each phase contact. Thus, if one or two burners do not work for you (especially if you installed a new stove yourself), then there is a high probability that you forgot about the jumpers or forgot to tighten them. It may be that you tightened the jumpers loosely. And weak contact causes heating. If you are interested, you can find out what the current does to the wires. If the stove does not work completely, then there is hardly a problem in the terminal block, most likely a problem in the power supply.
Now you need to turn on the power to the plate and check the voltage at the terminal block. You need to check by touching the screws themselves, not the wires. Moreover, check each screw. So you will understand if there is voltage at the terminal itself if the wire is not clamped correctly. That is, zero and first screw, zero and second screw, etc. If everything is in order and there is tension, then you will have to disassemble the stove.
After disassembling the plate, look at the connections on the back of the terminal block.
Conclusion on checking the voltage: if the stove does not work completely, then you need to check the jumpers, there is no point in checking the voltage in the outlet. If the stove does not work completely, then you need to check the voltage in both the outlet and the terminal block (if there is voltage in the outlet), since there is a possibility that there is no contact in the plug or some problems in the wire. If any one burner does not work, then go ahead.
If you have not yet read the article that was mentioned just above and which tells what current does to the wires, then read it. The main unpleasant property of weak contact is that when it heats up, the contact can disappear and then reappear. Therefore, if something works for you, then it does not, then you need to look for a weak contact. Unfortunately, this will have to be done under voltage, consistently going through the circuit, so be careful and attentive.
To begin with, there are three types of switches. They are all mechanical, but differ in the way they work.
- step power control
- smooth power control
- smooth power control with the ability to turn on an additional area
Accordingly, each switch uses its own cooking zones. The step switch uses a hotplate with several heating elements. You can find everything about such a burner here. The temperature on the hotplates with these switches is adjustable in steps and has fixed positions.
For the switch with continuously adjustable power, burners with one spiral are used. Therefore, such a burner, if it burns out, then once and for all. Unlike burners with several spirals (they were discussed in the previous paragraph), which continue to work partially, but do not give out maximum power. You can regulate the temperature on such burners smoothly within a very wide range, almost like on gas stoves.
For a continuously adjustable switch and an additional area, burners with one spiral are also used, but the burners have two areas. Consequently, a malfunction can manifest itself in two ways: one area does not work, or both areas do not work. If only one area has stopped working, then it is more likely that the reason is either in the switch or in the hotplate, if both areas stopped working at once, then most likely the power to the hotplate or the problem is in the switch.
What's on this point? Since you will be working with dangerous voltages, you need to be very careful. Turn on the switch and check the voltage on the hotplate.If there is voltage, but the burner does not work, this can indicate two malfunctions - the burner burned out or the burner thermal fuse (if any) is faulty. If there is no voltage, but it comes to the terminal block of the plate, then the problem is purely in the switch.
Basically, there is only one step switch malfunction. Poor contact leads to heating of the contact plates and either burns out the contact or deforms the switch guides. In this case, only a close inspection of the switch will help determine the malfunction. If you see darkened terminals, then the switch will have to be changed, since it cannot be repaired at home. You can only postpone his death for several days / months.
I wouldn't repair the continuously variable switches either. There are a little more malfunctions, but they all boil down to the fact that there is a breakdown of the bimetallic element. The principle of operation of these switches is that a current flows through the bimetallic plate, causing the plate to heat up, which in turn leads to reversible deformation of the plate. As soon as the deformation reaches a critical point, the switch changes the position of the contacts, closing or opening the contact plates of the power supply of the burner. If you repair such a switch, then setting up the correct activation and deactivation of it is quite problematic. In this case, the hotplate will either not reach full power or will not turn off completely.
Before changing the modulating switch with additional area, it makes sense to disassemble it first. There are two types of malfunction: the additional area does not turn on and does not turn off. In the first case, you need to look at what prevents you from turning it on, in the second case there is such a moment as welding the contacts. In this case, the contacts are opened, cleaned with a sandpaper or file until the contact pads are even, and this may solve the problem for a long time, or it may not. It all depends on the quality of the material of working contacts.
The task of the timer in the stove is to ensure that you have the possibility of automatic cooking. That is, you can set the on and off times, select the cooking mode, place the dish and the stove will turn on and off by the appointed time. Most often, the timer controls only the oven, but there are models in which one of the burners is also connected via a timer. The oven will not work until the timer has been set. It is not necessary to set the exact time, it is much more important to simply set it. The correct time does not affect the workflow in any way, it is rather intended for your convenience, so that you can correctly navigate the time by which you need to prepare your dish (for example, in the morning or reheat food for dinner).
Actually, if the timer is faulty, either only the oven or another hotplate will not work for you, if it is connected via a timer.
In part, I considered the repair of EKCH burners, where all malfunctions of burners with several spirals are written. The troubleshooting methods are suitable for all cooking zones. Here I will dwell in a little more detail on modern burners.
Therefore, it is possible to designate malfunctions:
If power comes to the burner (to the yellow and blue contacts), but the burner does not work, then two reasons can be distinguished: the contacts of the temperature sensor do not close or the spirals are burned out. If there is no thermal sensor, then the most likely cause is the combustion of the spirals. But everything must be looked at in place.
As I said, for the most part, this applies to the oven in the stovetop or oven. It can look differently, but you can “recognize” it by the following signs: it has only two (rarely three) contacts, it is attached to the oven, thick wires fit to it. Thermal fuses in ovens are rarely self-healing.That is, if it burns out, then it needs to be changed. A thermal fuse of any shape is suitable for replacement, but must correspond to the current and temperature that it controls. You can check its malfunction with a multimeter in the dial mode. Its resistance should be within zero. That is, it must simply conduct an electric current. The thermal fuse is installed in the common wire of the oven, which goes directly from the terminal block. Thus, if the thermal fuse is triggered, the oven will not work and, as a rule, only it will not work, and in all modes.Let's summarize and briefly go through troubleshooting.
- We determine the presence of voltage starting from the outlet, if the stove does not work completely and then in series: terminal block, switch, thermal fuse (if any), burner.
- Having found a faulty area, we try to repair it. If it cannot be repaired, we will change it.
- When replacing a hotplate, remember that EKCH-type hotplates can be used in circuits where regulators with smooth switching are installed, but not vice versa.
- We do not forget that we are working with dangerous voltage, therefore, we observe safety precautions.
In the article, I tried to consider as much as possible all possible malfunctions of mechanically controlled electric stoves. Some of the faults are suitable for electronically controlled cookers. In principle, mechanically controlled plates are easily repaired at home, but it is better to entrust electronic plates to specialized workshops.
Repair of hobs with touch controls is discussed in this article. Although this is a separate article, it is a kind of supplement. If you have a purely mechanical control, then you can read the article on touch control panels only for self-development.
If you've read it, well done! Well, I say goodbye to you.
Various devices can be used for cooking, but due to their frequent use and intensive work, they are especially prone to breakdown. Repair of electric stoves can be done with your own hands at home, without taking out bulky equipment to a service center.
Despite the external complexity, this device has a very simple design. All working elements are installed in a special heat-resistant cabinet made of alloy steel.
Photo - electric stove design
The principle of operation of the electric stove is based on heating the heating element by means of an electric current flowing through it. The device is equipped with heating elements that are necessary for cooking. They are ceramic, tubular, halogen, solid.
Photo - burner structure- Ceramic burners are presented in the form of a tube, so they can be used for any electric stoves and it is very easy to repair them yourself. The spiral fits into the hole in the plate and is secured with the help of special parts. Now more and more glass ceramics are used, which are more affordable and durable, in addition, it is amenable to washing;
- Halogen burners are considered economical, they work due to halogen lamps with reflectors. These lighting devices are installed in different parts of the hob and provide fast heating and low consumption of electrical energy;
- In old domestic tiles (Dream, ZVI and others), cast-iron spiral heating elements were often installed. They heated up slowly, but after turning off they gave off heat for a very long time. Separately, it should be noted their durability and resistance to moisture and high temperatures;
- The tubular spiral is made of a hollow tube. When heated, it not only gives off heat, but also promotes the circulation of warm air inside itself, which makes it possible to increase the efficiency of the device. This type of burner is the most difficult to repair yourself.
To power the stove, a power wire is used, which is connected to all burners.In addition, they also connect to regulators and thermostats, which act as a safety system for the appliance. After switching on, the wire begins to transmit energy to the heating element, which is necessary for cooking. You need to control the heating level and the hotplate using the appropriate knob. Many household stoves Ardo (Ardo), Indesit (Indesit), Electrolux (Electrolux), Zanussi (Zanussi) and others, in addition to these devices, also have built-in timers and alarms. They help control cooking times.
Photo - modern stove with halogen lamps and a sensor
Unlike gas stoves, electric stoves are considered fairly safe in everyday use. Their repair and maintenance can be easily done by yourself, and in terms of durability they are much better than gas models. In particular, this is because they can be cleaned at home, and not wait for the arrival of a specialist.
Typical malfunctions:
- A burning smell appears during operation. If you are worried about the smell of burnt food, then repair is not needed, you need to clean the cooking surface. If it stinks of plastic or rubber, then you need to urgently call an electrician;
- The hotplate does not heat up. This could be due to a lack of voltage, a coil or control handle problem. Repair of the burner or its wire will be required;
- Heating temperature not adjustable. It will definitely require repair of the mode switch;
- The hotplate does not heat up. A common problem with tabletop and stationary cookers is that their spirals crack. They can collapse as a result of an impact or from a sharp temperature drop (for example, the spiral heats up, and cold water accidentally gets on it). This is the reason for the lack of heating of the burner or uneven heating of food. Self-repair of the spiral is very easy to carry out without the help of a master - more often than not, it just needs to be replaced;
- Poor oven performance. Most likely, the problem also lies in the breakage of the spiral.
It should be noted right away that the branded service will not undertake to carry out warranty repairs after outside interference. Therefore, if you do not have such experience, then it is better to immediately contact specialized workshops.
Before starting to repair the device, you need to disassemble the case and get to the main elements. Depending on the design, on the panel or on the back wall of the Ariston (Ariston), Beko (Veko), Bosch (Bosch) electric stove and others, threaded connections may be located. They must be carefully unscrewed and removed. The table is attached with four screws, if removed, the panels can be lifted and removed to the side.
You will see the wires that go to the burner - these are the power cables and switches. They must be removed, because otherwise, further disassembly will be impossible. Burner removal scheme looks like this:
- First, the grounding clamping nut is unscrewed;
- It comes off neatly;
- There may be a ring or bracket under the ground, which serves to press the part as tightly as possible to the base;
- The burner can be installed either on the thread or simply inserted into the hole. Depending on its design, you need to lubricate the threaded element with oil and unscrew the part from the case, or simply pry it off with a flat screwdriver and take it out.
After that, you will have access to the internal connections of the device. It should be noted that the main elements of the hob are located directly below it, below (on the bottom, under it, on the back wall) are the oven parts.
Photo - hob
Consider how to clean ceramic hobs from Hansa (Hansa), Gorenje (Combustion), AEG and others. It is imperative to disconnect the device from the mains, otherwise you may get an electric shock.With a damp cloth, you need to wet the dirt on the surface of the burner and wait a few minutes, then gently clean off the build-up with a sponge or soft brush. In no case should a metal brush be used, otherwise the integrity of the spiral and powder coating may be damaged.
Photo - cleaning
Step-by-step instructions on how to replace or repair a switch for household electric stoves:
- It is necessary to turn off the power and turn the knob of the switch from the off position to the minimum heat. In the process, a lye should be heard, which indicates the operation of the thermostat;
- If there is no click, then the regulator is faulty. For an additional check of the thermostat, you need to leave it in the middle position and turn on the power - the protection should turn on and off every half a minute; Photo - electric stove switches repair
- Before removing the handles, be sure to read the "User's Guide", some models of plates are non-separable (Hephaestus, Kaiser);
- The first to remove are the handles, which are used to adjust the outside. Then, using screwdrivers, the front panel is unscrewed;
- Under it is a bar that presses the switches. It also needs to be unscrewed and the broken part removed.
What to do if the spiral is cracked:
- Unplug the electric stove from the network. In most cases, repairing the coil is impractical, so it will need to be replaced;
- Remove the top hob;
- Under it there is either a hole for ceramic heating elements, or a recess for solid cast iron or halogen ones;
- You need to very carefully pry on the part and remove it. Disconnect the contacts from the switch and the power wire beforehand;
- Install the replacement coil in a similar way.
Video: replacing burners on an electric stove
Household appliances powered by electricity are in great demand today, but, unfortunately, they often fail during operation. Every modern kitchen is equipped with an electric hob and is the heart of the space. In the event of a breakdown of their favorite equipment, home craftsmen are interested in: can it be repaired on their own? Today we will tell you how to repair the “Burning” electric stove with your own hands, because the models of this particular brand are in the greatest demand. Also, this material will touch upon the repair of no less popular gas stoves "Electrolux".
Any home craftsman who decides to fix his electric stove on his own must definitely understand electrical equipment, know how it works and the safety rules that must be followed when performing work of this nature. In addition, a person must be sure that he can carry out such a complex repair, independently determine the cause of the breakdown and eliminate it.
You will also need a certain set of special tools:
- To disassemble the plate, you should have at hand screwdrivers for a slot or a cross, with a different thickness of the tip.
- You will definitely need spanners and open-end wrenches, nippers, pliers.
- To carry out internal work, you will need a soldering iron, special side cutters, an insulating tape, a device for measuring resistance and voltage.
Important! This is only an approximate list of everything you need, since it may expand slightly in the process of performing work.
Naturally, before repairing an electric stove with your own hands, you need to understand its design features, study what main components it consists of. Electric stoves look quite impressive, because they are complex household appliances. But they have a rather simple design, all the main working elements are located in a special heat-resistant casing made of stainless steel.
They work like other electrical household appliances: the current passes through the heating element, heats up to the required temperature.
Important! The stove can have several burners on the hob, their number can vary from 2 to 4. The burners have a variety of structures. In classic models, they are located on the hob with a heating element inside. More modern appliances have solid ceramic surfaces with built-in heaters.
Hotplates can be of the following types:
- Domestic old versions are equipped with cast iron products that heat up rather slowly and also cool down. Because of this, a steam effect is created in the kitchen, but at the same time they are resistant to high temperatures and moisture.
- Tubular spirals. They are made from a hollow tube, during the heating process they give off heat and promote the circulation of heated air inside the case. This significantly increases the efficiency of their work.
Important! Such devices are quite difficult to repair.
- Ceramic burners. They differ in a simple design, but it is difficult to repair them on your own, since the nichrome spiral is located in a circle in special cells and is securely fixed there.
Important! Modern models are more often equipped with solid glass-ceramic plates, they are easy to wash, they are more durable.
- Halogen models. These are burners with a similar radiator, they are installed in several places on the hob. Such devices quickly heat up, literally in a second, they consume a minimum of electricity, so they can be safely called economical. Only specialists can repair them.
In all modern models, power wires of a special section are used to transfer current directly to the burners. They are connected to thermostats and regulators that provide overheating protection.
Important! The heating level in different models is regulated in different ways, for example, using a special timer and alarm, manually changing the cooking mode.
Let's take a look at the most common breakdowns before taking on the repair of the “Burning” electric stove with our own hands. Users of electric stoves during operation most often encounter the following typical malfunctions:
- An unpleasant odor appears immediately after switching on the appliance. The first step is to turn it off, carefully examine the burners, on which the remains of burnt food often remain. It is quite easy to eliminate them.
Important! If there is a smell of burnt rubber or plastic, then you need to immediately call a specialist.
- The heating element does not heat up. In this case, the problem lies in the burners or connecting wires, but initially it is better to check all the controls, since the contacts often come off.
- I cannot set the required heating temperature for the cooking zones. Switch repair will help here.
- The hotplate has stopped heating up. Internal coils often break due to moisture ingress or overheating. In such a situation, it is more difficult to repair the stove; you will have to replace the spiral.
- The oven began to work intermittently. We'll have to ring the heating element with a special device, since in such cases only he can be to blame. Heating elements cannot be repaired, they must be completely changed.
Important! If you decide to install and connect the electric stove yourself, then keep in mind that no one will repair it for free, because by doing so you will deprive yourself of the right to warranty service.
The algorithm for troubleshooting electric stoves does not depend on the selected model and the type of burners with which they are equipped.
Follow these steps to find the problem:
- Use a voltmeter to check the voltage. Often the problem lies in the tripping of the circuit breaker. In addition, the insulation of the wiring may be damaged or the socket may be broken. If this is the reason, then you will have to disassemble the device.
- If the indicator on the control panel is on, but the stove still does not work, this means that there is no current supply to the burners, which means that it is necessary to disassemble the stove.
- Next, you should check how well the electronic or mechanical control unit works. The measurement is carried out with a device that indicates whether current is being supplied to the terminals of the cooking zones.
- Then check the heating element on each burner to find a burned-out coil.
- Inspect carefully all sensors, regulators and relays.
Your main task is to find the problem and localize it. If you follow all the recommendations, you will be able to identify the problem, and we will tell you how to fix it later.
Plates can differ not only in appearance, but also in design and dimensions. There is no specific algorithm that would be suitable for disassembling absolutely all models. But without exception, all devices have a thermal insulation layer, which should be worked with very carefully.
Important! The asbestos dust that accumulates under the burners in old models is incredibly dangerous to health and this fact must be taken into account when disassembling archaic stoves.
The first step is to dismantle the hob, which is fastened with screws to the body. It is enough to unscrew them and it can be easily removed. It is under it that the burners, wires, mechanical temperature controls located on the front panel are located. All these parts must be dismantled in order to get to the bottom of the appliance, where the heating elements of the oven are located.
Modern cookers are easier to work with - they are equipped with glass-ceramic hobs and to disassemble the body and get inside, you just need to remove the top panel.
Important! The glass-ceramic hob must be repaired by a service representative. Without sufficient experience and knowledge, it is better not to undertake the repair of such complex equipment.
Below we provide a list of the most common electrical stove breakdowns. Many of them can be eliminated on their own, while others require professional diagnostics. Do-it-yourself electric stove repair can be done in the simplest cases. Let's take a closer look at them.
Follow these steps to change the hotplates on your stove:
- Unscrew the nut and remove the ground.
- Under it, you will find a bracket or ring that presses the part against the body.
- The burners are fastened with threaded connections or inserted into a special hole. In the first case, it is necessary to pry the thread with a screwdriver and remove, in the second - to lubricate it with oil and try to carefully unscrew it from the case.
Important! If you have an old stove, then it is better to completely replace the burners with more economical and modern models that are suitable in size.
- If the burners are functioning, then the reason for their failure may lie in the control unit. It is enough to clean the contacts from carbon deposits with fine sandpaper.
Do everything according to these instructions to repair or replace a broken switch:
- If there is no click when turning the knob, then this indicates its malfunction. To check its condition, it is necessary to set the regulator in the middle position, apply voltage to the stove, as a result of which the automatic protection should work and turn off after 30 seconds.
- Then remove the control knobs from the outside, unscrew the front panel.
- You will find a strip underneath that must be removed to get to the faulty regulator and replace it.
If you do not hear a click when you turn on the relay, then check for a signal. In its absence, we can safely say that the problem lies in the cascade at the output or in the microprocessor.
To repair the electronic unit, you need to find a circuit and understand the complexities of radio engineering. If you do not have such skills and knowledge, then contact a specialist.
The market for gas stoves today is quite large, there are many conscientious manufacturers working on it. But, despite the reliability, quality and functionality, such household appliances still break. Therefore, many home craftsmen repair the Electrolux gas stove with their own hands.
Most often, problems are associated with such phenomena:
- Insufficient burner flame.
- There is a problem with the oven door.
- Violation of electrical ignition.
- Poor thermocouple performance.
Important! Remember that gas is a highly explosive source. When it mixes with air, reaches a certain ratio, it can lead to an explosion. Therefore, deciding to fix the gas stove on your own, the first thing to do is to block gas access to the apartment. It is better to play it safe and open the window or front doors. Experts recommend turning off the electric ignition.
Now we will describe the most popular problems with gas appliances and methods for their elimination.
Most often, problems arise with the burners. The flame gradually begins to weaken, then disappears altogether. The main problem is associated with clogged diffusers or burners. This is due to inaccurate cooking - spilled sauce, boiled broth, lead to the fact that small holes quickly become clogged.
It is not difficult to solve this problem, you need to remove the burner, then disassemble it, clean the divider or nozzle. You can use a thin knitting needle or needle for this.
Problems with oven doors are also common. Some time after the start of operation, the door begins to stick, not close tightly. As a result, the hostess cannot fully operate the oven.
To fix this element, you need to unscrew the screws that connect it to the stove, then wiggle it slightly in different directions so that it sits back on its hinges.
With this device, you can start a fire without matches or lighters. But in order to use it, you need to provide it with access to the network. It rarely breaks, if this happens, then the fault is inaccurate handling or contamination with food particles and dirt.
To replace it, turn off the stove, disassemble the partition under it.