Repair of gas ovens: an overview of the main breakdowns of gas ovens and repair recommendations

The fire goes out after being ignited

There are times when a properly working gas stove suddenly starts to surprise. For example, you turn on the gas supply, it lights up, and after releasing the handle, it immediately goes out. Such symptoms indicate a malfunction of the thermocouple - a sensor that turns on the supply of a combustible mixture.

The thermocouple works as follows: when heated, it generates an electric current that magnetizes the solenoid valve. The valve, in turn, opens, and the gas flows freely into the burner. If the heating of the thermocouple stops, the electrical impulse disappears and the valve shuts off the flow.Thus, if after opening the tap to turn on the gas and ignite it with an electric candle, the combustion stops immediately - this means that the solenoid valve has worked and cut off the flow of the combustible mixture.

Repairing a gas stove with such a malfunction is quite simple.

Other breakdowns and their causes

Naturally, users may encounter other, less common malfunctions:

• The gas lever opens to full, but the size of the flame does not increase. This indicates a blockage in the injectors. This problem occurs both in the oven and in the burners on the hob. Cleaning of nozzles is carried out by removing contaminants with special cleaning devices.
• The lever turns with great effort. If the lubricant runs out, the valve cannot be turned at all. In this case, it needs to be cleaned, because various small debris constantly gets inside, which accumulates and complicates the turn.
• Smoking or unstable flame. Often this becomes the reason for the use of a poor-quality combustible mixture, so it is recommended to contact the public utility. But sometimes debris accumulates in the holes, which, when in contact with clean natural fuel, creates a corresponding effect. It can also be the result of burner deformation. It is impossible to restore its normal state, a replacement will be required.
• The burner refuses to function, but the nozzles were cleaned relatively recently. This can happen if there is no contact between the thermocouple and the special valve, the gas flows "past" the burner.
• The flame in the oven goes out, but again it's not about the nozzles. It is necessary to check the gas control system, electromagnet, thermocouple and thermostat.One of these elements is out of order.

To accurately identify a malfunction, a professional inspection, diagnostics on special equipment is required. It is not difficult to fix the equipment, it is much more difficult to localize the problem.

Primary check

Before you grab your multimeter, put on gloves, and take out a set of screwdrivers, it makes sense to check the power supply to the oven. It is worth looking for answers to the following questions:

1. Is food served?
2. Is the power cable OK?
3. Is there good contact between socket and plug?
4. Are there any traces of soot, melting on the plug and socket?
5. Is the plug or oven fuse blown?
6. Is the power wire in perfect condition, are there any fractures, abrasions or melting on it?

Plug fuse check

If there are no problems described above, and the oven still does not start, it is worth checking the appliance for standard faults.

What can break

Any oven, as well as any other complex device, can break. There are many typical malfunctions, the causes of which are clear even to users without special knowledge.

If after setting the temperature, time and modes the device does not heat up, you need to check the condition of the power cable. It will not be superfluous to make sure that there is normal voltage in the outlet.
If the heating element does not light up and there is no heating, it is recommended that you first check the correctness of the mode settings and program selection. You can also follow the manufacturer's recommendations for troubleshooting such a problem.
There is overheating, food burns - this indicates a malfunction of the thermostat side

Incorrect operation of this device also leads to a low temperature inside the oven.
If the food is poorly baked, does not cook normally even with an increased process time, you should pay attention to the heaters. Most likely, one of the heaters will have to be replaced.

In a completely inoperative oven, in most cases, the electronic control module fails. It can be replaced or reflashed. However, such repairs require special knowledge.

Some models of ovens have a self-diagnosis system. They report a breakdown with codes on the display. For example, error ER17 in Ariston models shows that the temperature in the oven does not rise for 125 seconds, and you need to check the power supply, the condition of the heating elements, the control sensor. If a particular device has a self-diagnosis system, all error codes are given in the instructions for its operation.

The oven switches off

During prolonged use, emergency shutdown occurs due to overheating of the housing. If the shutdown occurs on a short cooking interval (after 1-2 minutes), there is probably a problem with the temperature control sensor. A multimeter will help you find and determine the breakdown. We measure the temperature in the oven at the time of shutdown. We connect the probes with a multimeter to the temperature sensor and turn on the vertebrae mode. If you do not hear a signal, the temperature control sensor should be replaced. In some cases, a breakdown appears due to problems in the control unit, the board. If the shutdown was accompanied by a pop and a bright flash, most likely there was a short circuit in the electrical circuit after the destruction of the TEN housing.

If the faucet is hard to turn

With such a malfunction, it is the cork that turns tightly.When the valve returns to its original position when the pin enters the recess, no characteristic click is heard. The reason for the failure lies in the clogging of the slot in the valve body with the remnants of runaway milk or soup. The second point is thickened factory grease.

If there is a tight crank, the crane requires parsing. The general gas supply valve is pre-shut off. It is not superfluous to check the lack of fuel supply by trying to ignite the burner. For dismantling, remove all handles and the decorative panel located behind them. This will open access to the studs (they hold the plugs in the case).

Next, the required pin is unscrewed, the stem, spring, plug are carefully dismantled. In the event that the cork is stuck, you can carefully insert the blade of the knife into the hole by carefully turning it

Now the cork can be pulled out towards you, holding the groove. All parts are cleaned of grease and wiped dry.

In addition, I note that almost all parts of the crane, including the body, are made of bronze. That is why cleaning cannot be done with steel tools.

Particular care should be taken when washing the body and plug, as even a small scratch can cause gas to leak. The conical part of the body can be processed with a cotton swab

After cleaning, you should make sure that there is nothing superfluous left inside, the case is purged without fail.

The cork treated with a special heat-resistant lubricant is inserted into the body and turned slightly in both directions so that the composition evenly lies on the surface of the cones. Next, the crane is assembled in the reverse order.

Possible causes of failure

A broken oven door is a common problem.Many of the reasons have been discussed above when describing the visible signs of failure.

The main reason is incorrect or careless operation.

Sometimes heavy dishes are temporarily placed on the open door, children sit on it, which leads to excessive stress on the hinges and brackets. Deformed parts must be replaced.

Problems sometimes arise due to loose fasteners, imperfections on the part of the rubber seal. Fasteners can be tightened, and the gasket can be replaced. On some models of stoves, to replace the seal, you have to remove the door from the hinges.

Sometimes repairs are needed due to glass problems.

It may crack or burst
Reasons: factory marriage;
damage during transportation and installation of the plate;
temperature difference (heated oven and drops of cold water from outside).
This leads to the formation of microscopic cracks, over time, the glass wears out more and more, and at some point it can finally crack.

Important
You can replace the glass yourself, while you need to pay special attention to the purchase of new glass.

Typical malfunctions of gas ovens

We carry out a full range of services in relation to ovens, hobs and cookers. We will repair the gas oven in the event of malfunctions of all types of complexity.

Breakdown number 1. The fire goes out after releasing the handle - problems in the gas control system. If the lower burner of the oven or the upper grill does not maintain constant combustion after ignition, they turn off in the first seconds, replace the solenoid valve or thermocouple.

OR

Breakdown number 2. The faucet handle does not turn - the rotary mechanism is broken.If the adjusting valve of the oven stops at value 1, while it turns to value 8, i.e. does not turn off the gas supply, it is necessary to repair the gear mechanism with relubrication of the valve plug.

Diagnostics

We diagnose a gas oven by phone, so the cost of this service for you is equal to

0 rubles

Call

We will take money in the amount of 500 rubles for the call in case of refusal to repair, and this service costs

0 rubles

Repair

The cost of the technical work performed without the cost of the required spare parts varies with us.

From 900 rubles

Guarantee

Before leaving, our employees will issue a guarantee from our company for the work done for a period.

Up to 12 months

Power regulator repair

In fairly simple ovens, a mechanical power regulator is responsible for maintaining the temperature. It controls the operation of the heaters. In case of various failures (overheating, insufficient temperature, cold oven), it is recommended to check the condition of the copper contacts of the power regulator. The assembly will have to be disassembled by removing the body elements. The plates are wiped with alcohol. With too thick dense layers or soot - you can use a fine sandpaper

It is also required to inspect the condition of the bimetallic plates. If they are broken or deformed, further repairs are irrational. You will have to buy a new power regulator.

Cleaning the assembly in inexpensive ovens usually fixes all problems. Unfortunately, in complex electric ovens, heating elements are controlled by electronics. Checking the main module without special knowledge is not possible. It is recommended to entrust such work to the service center engineers.

The general principle of the oven

It is impossible to diagnose a breakdown without familiarizing yourself with the principle of operation of the oven.

In older models, gas was supplied to the burner from two pipes placed along the side walls. Such ovens were set on fire manually - with a tube from a newspaper. The safety of their work was ensured by free gaps on the sides of the unit and an open lower opening.

Modern models are equipped with profiled round burners and gas control systems. Some appliances have electric ignition, grill, convection option, which implies the presence of a fan, a heating element.

The most capricious part of the oven design is ignition.

When we turn the knob or press the auto-ignition button, a spark goes to the burner. A thermocouple is located next to the ignition system. It is also included in the gas control

The main problems of the oven are determined by the following symptoms:

• the gas stopped burning;
• ignition does not work immediately;
• the flame differs from the usual one by uneven color or burning;
• During operation, the device makes noise, a foreign smell is heard.

Finding something similar, turn off the gas supply. Next, we inspect the device for the presence of foreign objects: pieces of food and other debris. If necessary, we clean.

It is useful to check the operation and position of all valves. Periodically they need cleaning and prevention in the form of lubrication.

Pay attention to the condition of the landing hole. When it is destroyed, the part is easier to replace than to repair

Problems in the operation of touch panels are associated with breakdowns of individual elements or the entire unit. This is due to the ingress of moisture into the mechanism, the rupture of the connecting cable. Part replacement required

If everything is in order with the cleanliness and condition of the control unit, we proceed to checking the individual structural elements.

Program errors

The operation of all oven systems is controlled by an electronic control unit, which consists of a motherboard, a microprocessor and memory cards, where programs written by the developer of the device are stored. With this control unit or its software, the following problems may occur:

• Non-execution of programs. Occurs due to a software failure in the control unit. As a rule, the cause for such a failure is a power surge in the mains. In most cases, this problem is fixed by rebooting the unit, or flashing it.
• An error occurred while executing the program. Usually occurs due to a power surge and subsequent software failure, or due to the fact that the user entered another command without stopping the execution of the old one. Usually, to eliminate these errors, it is enough to turn the oven on and off. But in some cases, the problem may be in the control board itself.
• The system does not turn on or does not respond to commands. Clear evidence of serious problems with the control unit. It is possible that it will need to be replaced.

If the oven does not work, you can order a repair in our company

We offer masters with a high level of training and the availability of permits for gas hazardous work. The main criterion for assessing the quality of their work is a long-term guarantee for the services of the workshop. You can repair at home on any day of the week, our specialists go to applications on holidays. For complete information, contact the operator of the company by phone, name the model, year of manufacture and the cause of the breakdown.The cost of the work is negotiated with the service worker. For residents of Moscow and the Moscow region, we offer the following conditions.

Design and principle of operation

The device of a gas stove of any manufacturer is not much different, with some exceptions. The furnace includes several systems, the operation of which is interconnected:

1. Frame. Made of enamelled steel, the body is durable and resistant to aggressive influences.
2. Working surface. Usually covered with enamel with superheat-resistant properties. Expensive models contain a stainless steel coating. Above is a steel enameled or cast iron grate that protects the burners and the entire surface of the stove.
3. Burners. The quantity is from 2 to 4 pieces, depending on the model. Material - from ceramic to aluminum, different sizes. They release the gas needed for cooking.
4. Oven. It has most models of gas stoves. Located under the work surface, it occupies a significant part of the entire device. Designed for heat treatment of products: baking, drying, etc.
5. Gas equipment.It consists of distribution pipes, shut-off valves, burners and burners.
6. Automatic ignition system. This button, located on the front of the case, is needed to ignite the burners, and in some models, to grill, without the help of matches or lighters. Allows you to turn on the oven light.
7. Gas supply, control and monitoring module. It has a built-in timer, thermometer, processor, and other devices.

Advice
The design of gas furnaces is complex. To fully familiarize yourself with the characteristics of the device, refer to the instruction manual.

The principle of operation of a gas stove is to use natural gas for heating a home and cooking:

1. Gas enters the stove through a tube connected to a supply source. When the substance is supplied from a pressurized cylinder, propane is used as fuel.
2. After passing through the burner, the gas reacts with air, turns into a gas-air mixture, which reaches the perforated part of the burner in the upper part, breaks out through the dividers and ignites. The dishes placed on the rack are getting hot.
3. Regulate the gas flow with switches located on the panel.

If the design of the stove is of high quality, complete combustion of the gas occurs.

Thermostat not working

A thermostat is a device that is designed to maintain a given temperature inside the oven.

The principle of its operation is quite simple: when the set temperature is reached, it opens or closes the electrical circuit that feeds the heating element.Closing / opening is performed by expanding or compressing the gas enclosed in a container inside the thermostat, or by changing the size of the bimetallic plate, which also expands or contracts depending on temperature.

If the thermostat fails, the oven may not turn on, not heat the air inside the cooking chamber to the desired temperature, or overheat it so much that this leads to food spoilage.

Conclusions and useful video on the topic

You can learn how to solve the problem of intermittent operation of a gas stove thermocouple from this video:

Step-by-step repair of the oven door is presented in the following video:

A gas stove breakdown usually brings a lot of inconvenience, but it does not always require the help of a qualified specialist. If you completely disconnect the device from gas supply and electricity, then any owner can independently repair the gas stove.

The article presented the most common malfunctions of a gas device, as well as ways to fix them without the help of a wizard.

In this case, it is important to diagnose the equipment, and only after that proceed with repair work. But if you are not sure that you can cope with the breakdown on your own, it is better to seek help from specialists.

If you have already encountered the presented breakdowns of the gas stove, and at the same time you had to repair the broken part yourself, share your experience with our readers by leaving a comment immediately after the article. Tell us about the difficulties that arose in the process of repairing equipment, and how you managed to cope with them.