The reason for the induction cooker alarm, what is the matter with the induction cooker alarm

The induction cooker start-up alarm is often a failure to check the pot.

There are two main ways to inspect the pot of induction cooker: current and pulse.

1 Current transformer inspection:

The T1 secondary induces a voltage that changes synchronously with the magnitude of the primary current. It is rectified by D3-D6 full bridge and filtered by C8. Resistors R1, R8, R11, VR1 divide voltage, C9 filters and sends them to the corresponding function pins of the CPU for detection.

When there is no pot, the resonance capacitance time is long, the energy attenuation is slow, the primary current flowing through T1 is less, the secondary voltage of T1 is low, and the CPU judges that there is no pot. When there is a pot, due to the addition of a pot with a suitable material, the ** damping between the wire reel and the resonant capacitor increases, the energy decay is fast, the current that changes in the primary of T1 is large, and the voltage induced in the secondary is large, and the CPU judges that there is a pot.

2 Pulse Detection Circuit:

The C very high voltage pulse of the IBGT is divided by R10, R9 and R41 and sent to the reverse input pin of an amplifier inside the LM339. The co-directional input pin is divided by the power supply through R49 and R64 to input a fixed voltage. This constitutes a comparator.

On the 1 pin, a synchronous pulse with the opposite phase of the 6 pin is output and sent to the corresponding detection function pin of the CPU.

When there is no pot, the free time of the resonant capacitor is long, and the energy attenuation is long. In the unit time, the number of pulses is small, and when there is a pot, due to the damping of the pot, the energy decay is very fast, and the number of pulses per unit time is much more than that without the pot. In this way, a synchronized pulse is output at one pin of the comparator.

The CPU determines whether there is a pot of suitable material based on the number of pulses.

Induction cooker reporting delays are usually caused by the following situations:

1.The induction cooker is overheating. If the temperature inside the induction cooker is too high, it will automatically stop working and sound an alarm. This is a protection mechanism for the induction cooker, which is to prevent the induction cooker from overheating and causing disasters and other dangers.

2.The bottom of the pot is uneven or does not fit. If you use an uneven or unsuitable pot, the electromagnetic waves will not be well concentrated on the bottom of the pan, which will cause an uneven temperature, which in turn will trigger an alarm.

3.No pot or a small amount of water. The induction cooker requires the presence of a pot to function properly, and an alarm will also be triggered if there is no pot or there is too little water in the pot.

4.The induction cooker itself is faulty. Sometimes, when the induction cooker itself is malfunctioning, an alarm sound will also sound. This situation is less common than failure, and it is generally necessary to find a professional to repair the mold.

If the induction cooker keeps alarming, we can solve it in the following ways:

1.Check that the pot is in the right place. The cooker will only work properly if it detects that a pot is placed in place.

2.Check that the pot fits. With an induction cooker, you need to use a pot with a ferromagnetic bottom to interact well with the magnetic field lines of the electromagnetic field, so that the food in the pot can get a good heating effect.

3.Check the pot for water. If there is no water in the pot or there is not enough water, it is easy to trigger an alarm. Therefore, it is advisable to have a certain amount of moisture in the pot.

4.Clean your induction cooktop regularly. If you use the induction cooker for a long time, oil stains and dirt on the bottom of the pot will accumulate, which will affect the working effect. Therefore, it is advisable to clean the induction cooker regularly.

In general, the alarm sound of the induction cooker is a protective mechanism, we need to carefully check the abnormal situation, and gradually troubleshoot the problem to achieve normal use effect.

When the induction cooker sounds an alarm, it may be caused by the following conditions:

1.Overheat protection: The induction cooker will monitor the heating temperature during use, and when the temperature is too high, the overheat protection function will be automatically triggered and an alarm sound will be sounded. At this point, you can turn off the cooker and wait for it to cool down for a while before reusing it.

2.Unsuitable Bottom Pot Detected: Some induction cookers have a bottom pot detection function, which will sound an alarm if a non-suitable bottom pot is detected or no bottom pot is placed on the top of the noodles. You can check if the bottom pot fits or try again with a suitable bottom pot.

3.Other faults: The alarm sound may also be caused by other faults, such as problems with the internal circuitry of the induction cooker, etc. In this case, it is recommended that you check the instruction manual of the induction cooker or contact the after-sales maintenance personnel for troubleshooting and repair.

There are many reasons for the induction cooker alarm, the most common of which is that your cooker leaves the surface of the induction cooker, and the induction cooker will feel stupid and dig out the alarm sound, if you do not put the cooker on the surface of the electric gear sock magnetic stove in time, some of the induction nuclear cooker will automatically cut off the power.

Summary. Generally, it may be the "pot inspection circuit" or "overheating protection circuit" and the heat dissipation circuit of the induction cooker fan is more common. You can try changing the pot and pay attention to whether the fan at the bottom of the stove is spinning properly.

Pro: Generally, there are a number of answerable questions that are clear, only the "pot inspection circuit" or "overheating protection electric bilun circuit" and the heat dissipation circuit of the induction cooker fan are more common. You can try changing the pot and pay attention to whether the fan at the bottom of the stove is spinning properly.

Any component damage will cause the above phenomenon. It is recommended that you consult the warranty organization of the induction cooker brand product, and do not go to the informal maintenance point of the cavity, otherwise it will be extorted or even damaged.

The situation that the induction cooker will alarm for a while is generally due to the following reasons:

1.High temperature: Induction cooktops are usually equipped with overheating protection function, which will automatically alarm when the temperature is too high. This is usually caused by the use of too much heat or too long in the cooking process, so it is recommended to reduce the heat appropriately or reduce the cooking time.

2.Poor contact: Poor contact between the plug and socket of the induction cooker can also lead to an alarm. This usually requires checking that the plugs and sockets are secure, loose, and replugging them if necessary.

3.Unstable power supply voltage: The power supply voltage may be unstable in some places, which will cause the induction cooker to not work or work properly, and the alarm is one of the situations.

In this case, you need to check whether the power supply voltage and frequency meet the requirements of the induction cooker, if not, you can contact the power company to solve it.

4.Failure: There is also the possibility of failure of the induction cooker itself, such as the failure of the control board, the damage of the ** ring, etc., which needs to be solved by contacting the manufacturer or after-sales service.

When using an induction cooker, you should pay attention to the following:

1.Ensure that the power supply voltage and frequency meet the requirements;

2.Do not use high fire for long periods of time;

3.Do not place flammable materials around the induction cooker;

4.Clean the surface and interior of your cooktop regularly to keep it clean and tidy.

To sum up, there are many possibilities for the induction cooker alarm, which need to be investigated and dealt with according to the specific situation. When using the induction cooker, you should pay attention to the requirements of the instruction manual, and regularly carry out maintenance and maintenance to ensure the normal operation and service life of the induction cooker.

There are many reasons for an induction cooker alarm, and the common reasons include:

1.Excessive temperature leakage: Since the induction cooker will produce high temperatures when heating food, it will automatically send out an alarm when the high hand temperature exceeds the safe temperature of the stove.

2.Circuit short circuit: The circuit of the induction cooker is damaged or short-circuited will also cause it to alarm, then you can check whether the power cord of the induction cooker is in good contact, or check whether there is a problem with the circuit inside the induction cooker.

3.Abnormal magnetic field: The abnormal magnetic field inside the induction cooker is also a common alarm cause, so you can try to remove the food or restart the induction cooker to solve the problem.

In view of the above alarm causes, we can take the following corrective measures:

1.Cooling treatment: When the induction cooker alarms, we can cut off the power first, let it cool down naturally, wait for a few minutes and then turn it back on, which can usually solve the alarm problem caused by excessive temperature.

2.Check the circuit: When the induction cooker alarms, we can check whether the circuit is damaged or short-circuited, and if there is a problem, we can replace the parts or find a professional to repair it.

3.Adjust the position of the food: When the induction cooker alarms, we can try to adjust the position of the food to avoid the alarm problem caused by the abnormal magnetic field.

In short, for the induction cooker alarm problem, we need to determine the cause of the problem first, and then take corresponding repair measures, if you can't solve it yourself, you can seek professional help.

Double-check to see if something is wrong.

Induction cooker is a common kitchen appliance in modern homes, and it works by using a magnetic field to inductively heat food. However, this kind of electrical appliance will also malfunction during use, resulting in failure to work properly, let's take a look at the reasons for the failure of the induction cooker.

1.Circuit problem: The induction cooker may not be able to heat the heating plate normally, so you need to check whether the plug and power cord are damaged or fall off.

2.Heating plate damage: The heating plate of the induction cooker produces high temperature during work, and it may wear or age after a long time, resulting in poor heating effect, and the heating plate needs to be replaced.

3.Controller failure: The controller of the induction cooker is the key to control the strength and time of the electromagnetic field, if the controller is damaged or the operation is wrong, it will lead to heating failure or uneven heating.

5.Other problems: In addition to the above problems, there may be other problems, such as the induction cooker fan not working or the display is faulty, etc., and the equipment needs to be repaired or replaced.

In short, for the problem of induction cooker failure, we can first check whether we have made a mistake, such as keeping the bottom clean and using a suitable plate, adjusting the size of the fire, using a suitable pot, etc., if it is not an operation problem, you can contact professional maintenance personnel to check and chain and repair the induction cooker. Usually use it correctly, clean and maintain it regularly, prolong the service life of the induction cooker, and make our life more convenient.

First see if the fan is working properly.

1. If it is an old style of induction cooker, there is generally a fan rotating when it is turned on, and the sound can be easily heard.

2. The temperature measurement resistance is thermal, you link the table with a lighter or electric soldering iron to bake it, look at the value, the normal heating will continue to drop until 0, and the resistance value will continue to rise after stopping heating, so it is good.

3. The resistance is black, you can detect whether it is damaged, look at the resistance color ring, and you will know its resistance value. If the resistance deviates too much, it should be damaged and it is recommended to replace it. Generally, blackening is a manifestation of burning, which should be infinity.

As far as you said, it will alarm after turning on and heating, and it will be easy to use after heat dissipation, it should be a problem with the temperature sensing resistance and its corresponding circuit, focus on checking here.

If the rectifier bridge is broken, it will burn the board directly, and the insurance will melt down. IGBTs will be burned if they don't do well. If not.

The fan is overheated due to oil smoke blockage, so that the induction cooker will automatically stop heating, and the air inlet of the fan needs to be cleaned to increase the air volume smoothly.

Feel the air volume with your hands.

The thermostat of the IGBT tube of the induction cooker is broken.

Replace the thermostat.

The thermostat on the cooktop of the induction cooker is damaged.

Replace the thermostat.

The market voltage is unstable.

Not in the city.

In rural areas, it is common to find holes.

Another point is the aging of plugs and sockets.