DIY gas stove electric ignition repair bosch

In this topic, you will get acquainted with the electric ignition device for gas stoves, with their electrical diagrams and how the diagnostics of the electric ignition is carried out, in case of its malfunction.

The gas stove electric ignition unit consists of the following elements:

• diode;
• resistor;
• capacitor;
• thyristor;
• triac;
• transformer;
• closing contact of the push-button station switch;
• spark plug.

The primary winding of the transformer (electric ignition) consists of two semi-windings Fig. 1. At the ends of these half-windings, the magnetomotive forces will be different, that is, a pulse of positive and negative polarity will be supplied to the control electrode along the cathode of the thyristor VS1 alternately. At the moment when a pulse of positive polarity is applied to the control electrode of the thyristor, the thyristor opens. In this case, the current - by a surge will increase to the nominal value.

The secondary winding of the transformer, consisting of two windings of parallel excitation, will feed the spark plugs

phase current. When the electric ignition is turned on, the phase intermittent current in the form of a spark will break through, according to the law of physics, onto the body of the gas burner.

The second scheme in Fig. 2, in its essence, in comparison with the first scheme, does not change anything. In the circuit with the primary winding of the transformer, a VS1 triac with anode control is included. In the open state, the current is passed in both directions, the anode control is also carried out using current pulses.

Diagnostics of household appliances, namely electric ignition, is carried out in a passive way without connecting to an external source. To check a resistor, for example, having a resistance of - 510 Om, the “multimeter” device is set to the position of resistance measurement, - in the range from 200 Om to 2 k Om, that is, the digital value - 510 must be included in the set measurement range.

It should be remembered that in addition to its resistance, each resistor in the circuits in Fig. 1, Fig. 2 is designed for its rated power.

When replacing a capacitor, not only its capacity is taken into account, but also the permissible voltage value set on it. For example, a capacitor has its own capacity of 4 microfarads, the permissible nominal voltage value for a capacitor is 400 V, therefore, two values ​​must be taken into account:

The thyristor is checked for its conductivity, the device is set to the position of resistance measurement, while the resistance value is checked between:

• control electrode and anode;
• anode and cathode;
• cathode and anode
• anode and control electrode.

The primary and secondary windings of the transformer are checked for resistance, while the device is set to the position of the smallest resistance measurement.

In gas stoves (without electric ignition), as you know, it is convenient to use piezo ignition.

The piezo ignition of a gas stove consists of two components:

• drive element;
• piezoelectric generator.

The piezo igniter works on the same principle as an ordinary piezo lighter.

That's all for now. Follow the rubric.

Good afternoon.
Hob BOSCH. Sparked electric ignition on one burner - works without interruption. Turned off the electricity, cleaned it, turned it on - the second burner sparkled - I looked at it before that. can I fix it on my own?

Hello Igor.You need to check in the electric ignition circuit - a button switch, that is, the contacts of the switch, as I believe, are constantly in the closed position. The switch contacts are exposed to:
heating to the effect of current strength;
oxidation;
burning.
If the switch is made in a stamped version, then, of course, it cannot be repaired and, accordingly, you need to choose the same switch.

On one of the burners, the discharge does not seem to pass completely, that is, you can feel it, but one burner does not light up, if you change the contacts on the block, then everything is fine, is there any point in cleaning the block itself or is it easier to buy a new one?

Hello Dmitry. The wire from the spark plug is inserted into the "socket" of the electric ignition unit. That is, here is the usual connection (socket-socket). The contacts must be well cleaned with a cotton swab moistened with any alcohol (for an electric ignition unit). Also, you need to inspect and, if necessary, clean the candles and their contact connections.
Victor.

The Whirlpool gas hob, when connected to the network, the spark hits all the burners at the same time and does not stop until you disconnect from the network, please tell me what could be the reason

Hello. I believe that this breakdown lies in a malfunction of the electric ignition switch.

Hello! I have an Electrolux hob and the same problem, I disassembled it, I checked it like everything was clean, washed it with alcohol and anti-fat to the buttons, dried it, it didn’t help. Tell me how to check the bf95046-n00 electric ignition unit itself for operability, everything is filled with plastic, only contacts come out! It costs 1500 re at the service, before giving that kind of money for it, I want to make sure that he really grunted! Thank you.

Hello. Try to strip: contact connections of wires with electric ignition, contact connections of wires with spark plugs, contact connections of wires with buttons of electric ignition. Also, you need to check the buttons themselves. The electric ignition button is checked with an indicator screwdriver, that is, you need to check the button contacts for switching on. When the electric ignition is turned on, a spark breaks through from the candle to the burner, respectively, you need to check the tips of the candles (if there is oxidation, the tips must be cleaned). Check the electrical outlet to which the ignition is connected, check the electrical cord with a plug, each wire with candles. In general, you need to check everything carefully. Maybe the cause of the malfunction lies not in the electric ignition itself, but in the malfunction of the button and so on. It may be necessary to solder the wires from the candles.
If you have any questions for me, please let me know.

Hello Victor! So the situation is like this. When the electric ignition elements are assembled and connected to the network, the spark breaks through all the candles and clicks constantly. When you turn off the block of electric ignition buttons, there are 4 of them sitting in parallel on 2 wires, a spark does not occur. I draw a conclusion: the unit itself is working normally, and the spark switch block is short. When dialing, its tester shows a short circuit. I disassembled and rinsed all the buttons with alcohol, cleaned the contacts, it still whips away ... I put it on the battery to dry, I'm waiting ...

Hello Sergey. Now you need to clarify the cause of the short circuit. It may be necessary to use a dielectric material - small pieces of pvc cambric of the appropriate diameter (that is, pieces of cambric are put on the terminals of the contacts to prevent a short circuit). Buttons probably should not be washed with alcohol, condensation may form, followed by oxidation of the contacts. Nevertheless, not everything is so bad - you yourself performed the diagnostics and found out that the electric ignition is in good condition.

In general, I will report! The electric ignition unit turned out to be intact. It was all about one or two (did not specify) of the 4 ignition buttons. Determined by the method of elimination.I took turns filming and calling for a short circuit. As a result, I washed and dried both removed buttons and connected them to a new place on the wires. The shorty was gone, everything worked! In the service, they asked for 1500 rubles for the ignition unit. for 4 buttons assembled 1400 r. Master's challenge 500 р. Well, probably the installation of 500 rubles, for less they strain into scrap. As a result, he stayed with the money and with a working ignition. Thank you very much to Victor for your attention and help. Good luck everyone

I am pleased Sergei that you have succeeded.

Hello Victor. The situation is as follows. When installing a new stove Hephaestus 5100-03, we checked the electric ignition, everything worked. A few days later we decided to use the oven and it turned out that the electric ignition (no spark) of the oven and grill did not work. In this case, there is a spark on all burners and the gas is ignited normally.

Hello Sergey. I need to clarify whether the gas stove (Hephaestus 5100-03) has an electronic oven timer or not? If with an electronic timer, does the display show the time (current time and cooking time)?

Hello Victor. The timer is electronic, but it does not automatically turn off the oven. Only beeps the signal.

Hello Sergey. I think that you yourself should not do anything (for repairs). The gas stove is new and the organization that deals with warranty repairs is obliged to fix this malfunction free of charge.
If the electronic timer of the oven is working properly, then the cause of the malfunction should be looked for in the contact connections of the wires:
with electronic timer module,
with spark plugs (oven and grill).

Good day!
The problem is as follows: There is an electrolux hob with electric ignition. One fine day, a spark began to beat non-stop on the burners. Turning off the power and ringing the buttons, I concluded that there was a short circuit on one of the buttons. I disassembled it, fixed the short circuit, fixed the buttons, everything seems to work. But after connecting, there was a "BOOM!" and knocked out the machines. The left contact on the electric ignition unit with the inscription "on the buttons" has melted. Perhaps due to the fact that I confused zero and phase.
I concluded that it was necessary to replace the electric ignition unit (when connecting the standard electric ignition unit and closing the contacts "to buttons" with a screwdriver, nothing happens). But such blocks are not available anywhere. There are only universal blocks (white). 220 comes on them already from the buttons, and not like on the standard one.
The question is - how can I put on a universal block? Can I simply embed an existing block of buttons with a thin section of wires into a circuit, for example, in a phase?
I attach a picture for an example.

Hello. The electric ignition unit must correspond to the model of the Electrolux gas stove. Such information should be indicated in the manual for the gas stove. Solve your question simply - call a specialist to connect the electric ignition.

Hello, I removed the top cover from the gas hob, it was necessary to get the spring from the handle, it failed when I washed the stove. Put the lid back on. electric ignition stopped working, tell me how to fix it yourself

Hello. You need to contact a specialist (for repairing gas stoves), since this missing part (spring) can subsequently create a gas leak.

When you turn on the burner from a spark, it burns, but if you remove your hand, it goes out right there.

Hello. This means that this breakdown refers to a malfunction of the mechanism - the gas switch. To eliminate the malfunction, you need to call a gas stove repair specialist.

Hello. Stove Hephaestus 5100-02 ooo9. A spark has disappeared in the lower burner candle of the oven (there is a spark on all other burners). He took off the hob, changed the places of the marks of the upper and lower burners of the oven in the electric ignition block, on the lower burner a spark appeared on the upper burner. Is this situation a breakdown of the electric ignition unit? If yes, can it be repaired.

Hello. I assume that this reason is a malfunction of the electric ignition. I recommend that you send the electric ignition for repair.

Victor, good afternoon! I have a NARDI stove, 2 burners stopped lighting. There are clicks, but they do not light up. no spark. Please tell me who should I contact to fix this malfunction? And do you need to call a specialist or perhaps eliminate it on your own?

Hello, Tatyana. To inspect and eliminate a malfunction of a gas stove with electric ignition, the participation of a specialist is necessary, that is, it is necessary to contact the organization that makes the appropriate repairs. Carrying out repairs on your own is risky, since the stove is gas.

When you press the knob, the electric ignition goes to all the burners at the same time, but one burner does not light up since there is no spark on it, if you substitute a screwdriver, a very weak spark jumps, tell me how you can fix it.

Hello. It is necessary to check the contact connection of the wire with the spark plug and with the electric ignition itself.

Hello. There, in my opinion, is soldering to the electrode ...

On many models of gas stoves, designers install automatic ignition, which is switched on with the supply of gas or from a separate button. This function is very convenient: you do not need to be in contact with an open flame in order to ignite the burner. If you suddenly find that the autoignition on the gas stove does not work, do not rush to call the service: it is quite possible to repair this malfunction with your own hands.

Based on the statistics collected, gas stove specialists have compiled an approximate register of common failures.

1. When the burner control knob or the dedicated separate button is pressed, the electric ignition does not occur.
2. The automation of the product in the gas stove works constantly, clicks are heardbut there is no spark - the gas is not ignited.
3. Releasing a button or knob does not turn off the system.
4. The device continues to operate continuously, even when the button is not pressed.
5. Knocks out a machine gun protection in the apartment panel at startup.
6. The circuit of piezo ignition or electric ignition of the stove is closed.

Electric ignition can only be used on gas stoves. Its main function is to ignite the blue fuel at the moment it exits the diffuser of the burner installed on the gas stove. It happens automatic and mechanical type... In the first version, special piezoelectric elements ignite the gas-air mixture when you turn the switch on the control panel, and in the second case, the user must press a special button. The spark ignites the gas and cooking can begin. An automatic gas ignition device is the most capricious and unreliable device from the entire arsenal that a modern gas stove is equipped with.

Very important! Never try to turn on the system with the burners removed - breakdown to the body is guaranteed.

Taken together, the entire operation of this system looks like this:

• the user presses the button, thereby supplying voltage to the capacitor, which begins to charge;
• the level on the thyristor gradually increases, when it reaches the set threshold, then the capacitor is discharged;
• a voltage arises at the output of the entire system, which activates a special device - an arrester;
• the spark ignites the gas.

The whole system works much faster than we are talking about it. The spark is supplied to the burner that is currently on (in older models it was supplied to all devices, but the one where the gas was open was ignited). The start buttons are located under the controls. Electric ignition powered by mains with an alternating current of 220 volts and is vulnerable to voltage surges that occur quite often. After a power surge, it can constantly click, which indicates a breakdown.

The system will work only if the plug of a separate cable is connected to the home electrical network, which many users forget and call the service with complaints.

Why does the electric ignition of the gas stove not work? There are several reasons for a malfunction in this device.

1. There is no spark on the electrodes.
2. Moisture or grease has come into contact with the interior of the system or the surface of the plug.
3. A crack or a burst of ceramic candle insulation has appeared.
4. Burnt out transformer - spark generating unit.
5. The contacts of the power button have oxidized or carbon deposits have formed on them as a result of a short circuit (short circuit).

Some malfunctions can appear after wet cleaning the hob, when moisture gets into the inside of the hob. To eliminate them, it is enough to do prophylaxis: cleaning contacts, drying candles - almost the same measures are done by motorists.

If only one burner does not ignite, then the reason may be damage to the high-voltage wire to the ignition electrode, the ignition device itself, or a malfunction of the channel of the entire unit.

When you have made an inspection, found out the cause and diagnosed the problem, you can start to repair the gas stove yourself. It is carried out similarly for all models. The famous Italian brand Ariston or the Belarusian Hephaestus stove, which is in great demand among Russians - there is no difference, the ignition systems are almost identical except for purely individual nuances.

Refresh your knowledge by reading the instructions for use of the product before starting work. Knowledge of the principle of operation and the device of a gas stove is necessary for its successful repair.

1. We ignite the faulty burner using a third-party source of open fire, matches or a special lighter - the flame must be even and distributed over the entire circumference of the divider. Flame yellow means the wrong concentration of gas and air: it is necessary to clean the nozzle or replace it. It is possible that the holes in the divider are clogged or moisture has entered. It is necessary to do preventive maintenance, blow out all the holes, remove the burner body and inspect it.
2. All electrodes and switches are connected in parallel. Each electrode is powered from a single ignition unit, but their activation comes from different buttons. To make sure that only this button does not work, and the control unit is normal, you need to turn on the next hotplate. If gas is ignited - repair the button, and everything else in the system is working properly.
3. If the ignition device cracks constantly, then it is necessary check contacts - they could stick from the ingress of fat or carbon deposits formed as a result of oxidation. Before repairing, do not forget to disconnect the stove from the mains, then carefully dismantle, clean the contacts or dry them with a hair dryer. Compliance with safety guidelines will protect you from injury.

Most of the breakdowns that led to the failure can be eliminated on their own - they are not dangerous for the user, but it must be remembered that gas stoves are potentially dangerous products, so even preventive work must be performed carefully.

Sometimes a breakdown of the ignition button leads to the fact that the repair will not help - a complete replacement is required. In this case, it is better to go to special stores and purchase a similar option.

Cheap printed circuit boards that make up the electronic stuffing of household equipment cost $ 10. The consumer avoids repairing budget gas stoves with electric ignition with their own hands. A price exceeding $ 30 unwittingly provokes the thought of saving money. You visit the forum of radio amateurs: you see ... Ready-made electrical circuits of ignition devices. Wind step-up transformers, look for capacitors, solder, smoke equipment at your own peril and risk.

In contrast to most household appliances, repairing gas stoves with electric ignition forces you to master the technique of replacing resistors. A frequent, ongoing process. Newcomers challenging the appropriateness of the event cause general indignation among members of the forum. They call the dilettante offensive phrases, condescendingly explain, inside the high-voltage unit:

1. High voltage transformer.
2. Capacitor.
3. Diode.
4. Resistor.

The electrical circuit is specially filled with compound, the burdock will not get inside. You pick it up, saving your hard-earned $ 30. The self-taught ignore the manufacturer's thoughts about protecting products against unauthorized access.

The gas stove electric ignition unit optionally contains control elements - thyristors, triacs. It takes a long time to explain the exact principle of operation of the components of the electric ignition. It is worth noting: the behavior of semiconductor products resembles a key (a tap - plumbers are more accustomed to think). Semiconductor electronic elements are used to drive a power line through a voltage of 5-12 volts.

The analogy of a water valve is complete. A person makes a symbolic effort, opening the tap, releases the incredible power of the pump. The scanty voltage of the control electrode reaches the operating point, the thyristor opens, starting the electric ignition circuit. There are two positions: open, closed. Pure digital microelectronics. Any processor is formed by semiconductor keys - miniature, indistinguishable by the human eye. The PC is considered a logical evolutionary continuation of electronic circuits.

The high-voltage transformer increases the voltage (units of kilovolts) of the output winding, the slot of the burner arresters illuminates the electric arc. Gas is supplied by the handle of the same name, starting the electric ignition circuit. There are other models of devices. Thanks to the spark, the gas ignites:

• pressing the button, the cook charges the capacitor with rectified voltage;
• the capacity begins to accumulate electrons;
• the voltage level of the control thyristor rises when it reaches the threshold value, the capacitor discharges, warming up the primary winding of the transformer;
• the output of the electric ignition circuit generates a voltage that causes the arrester to operate;
• the spark ignites the gas.

The principle of operation of electric ignition is based on charging a capacitor through a rectifying diode to a certain level. The specific implementations of the schema vary. Be ashamed to study an electrical engineering textbook: repairing the electric ignition of a gas stove with your own hands is easier than a steamed turnip. Know a couple of rules, be able to solder.

The mentioned resistor of the electric ignition circuit is more often with a nominal value of 3.9 kOhm. The dissipation power is 0.5, less often 1 W. The size of the capacity has long been known (according to the opinion of members of the forum) - a couple of fractions above 2 microfarads (the numbers go in jumps according to the rows given by GOST, it will not be possible to find exactly 2 microfarads, except from the E24 series) with an operating voltage of 250 volts. The radio amateur will not notice the difficulties. There were times when TVS were manually rewound!

The average person wants to know the sequence of actions. First, it is necessary to disconnect the electric ignition of the gas stove from the voltage source. The second step is to remove the electronic, high-voltage blocks. The design comes with separate printed circuit boards, a single substrate. There are other options.

Begin inspection by evaluating the quality of the tracks, soldered joints. The conductor layer, which looks like a silver stripe, is covered with a layer of varnish. Made to protect the electric ignition circuit from external factors, primarily moisture. The varnish reliably covers the conductive layer. Do you have nail polish at home? It will do one hundred percent.

Carbon deposits are cleaned with a zero skin, degreased with alcohol, varnished on top. The peeled, torn tracks of the electric ignition circuit are repaired.

Example. The conductive layer is torn. Both edges are slightly cleaned with emery, tinned, connected with solder.A varnish is applied on top of the cooled solder, alcohol is applied as needed. For wiping the PCB, of course.

Burnt resistor is black. The denomination is indicated above. It is not forbidden to put an element more powerful. Eyewitnesses unanimously say: the further process of exploitation is going excellently. Let's give the plate circuit a 9 kΩ resistor. It is better to take the dissipation power equal to greater than the analogous parameter of the original element. 1 watt will do.

The breakdown of the capacitor is visible from afar. Some (electrolytic) ones swell, the swollen keg cannot be missed by an attentive master. Regarding the denominations, it is recommended to ask the members of the forum. Modern marking of resistors with multi-colored rings is more complicated than the existing alphanumeric inscription. Tolerance was expressed as a percentage.

Repairing the electric ignition of a gas stove can be a simple matter. If the transformer windings are burnt out, you will have to buy a new one. Do you want to check the localization of the fault? For each output we find a pair that rings. The resistance (use a multimeter) is hundreds of ohms. There were "legs" hanging in the air: rather, there was a problem with the installation of the transformer. Rewinding a lesson is not easy. The vastness of the network will provide you with valuable information. A core of the form of the letter Ш is used. There are dozen primary turns, the secondary winding will have to be taken seriously.

After examining the circuit boards of the gas stove, pay close attention to the state of the button. Control panel element that initiates the process of ionization of the spark gap. The contacts of the electric ignition button are powered by the voltage of the centralized network of 230 V. Brass contacts with a short circuit of the circuit are easily melted by the welding arc. It is recommended to clean the pads, check the performance of the switch with a multimeter (ringing).

A product that can withstand the operating voltage is suitable. Electric ignition will not work any worse. At times, installation is accompanied by technical difficulties. The button does not fit the installation dimensions of the case. Modify with a file.

The main thing is to solder the jumper correctly, the necessary spare parts are often sold separately.

Each burner is equipped with a candle, a combustion control device (thermocouple). Electric ignition of a gas stove schematically differs little from an ordinary car. Do you want to check if the gas stove spark plug is working? Turn off the gas. Remove the reflectors, the baffles of each burner (round things that form tongues of fire), look ... When the ignition is pressed, the products give a good spark. Has 1 candle broken? The cause of the breakdown of the electric ignition of the gas stove has been found.

The combustion control circuit is composed of a thermocouple (temperature sensor of an arbitrary type). It happens that the electric ignition works 100%, the gas refuses to burn. The point is rather in this node. The command closes the blue fuel supply path. A properly beating spark of a gas stove is powerless to set fire to air devoid of a combustible mixture.

The electric ignition unit is equipped with 4 or 6 outputs, the literature ignores the reason for the need for the specified number of contacts. We assume 1 pair is used by the oven, grill. Modern trends oblige the manufacturer to produce two-in-one models. A gas stove with an electric ignition of the oven is convenient: you will find models where the opportunity is not realized, and those where you will have to modify the circuit with a copper core. Will need help from her husband.

We will be ashamed to call the electrical circuits for igniting a gas stove complex. Hams make it easier. The getinax board is etched out, the necessary elements are soldered. The original composition of the electric ignition of a gas stove provides a ready-made transformer, the button discussed above.

An experienced engineer can usually improve this by the manufacturer. The Internet gives an interesting scheme for the electric ignition of a gas stove, formed by a triac, striking a simple one.

The electric ignition Zanussi gas stove will make you forget the look of a matchbox. This is what company officials say. The business class segment is represented by products from Gorenje (Slovenia). Despite the abundance of brands, an almost complete list belongs to the Electrolux concern (headquartered in Stockholm). The mentioned Zanussi belongs to the category.