What is the reason why the induction cooker only bursts the fuse intact, and the induction cooker bu

If you cannot replace the current fuse immediately, you must make sure that the other parts listed below are in normal condition before replacing them, otherwise the fuse will burn out again.

1 Visually check whether the current fuse is blown out.

2 Detect whether IGBT breakdown:

Measure the "E" of the IGBT with the multimeter diode file; “c”；Whether there is a breakdown between the three poles of "g".

a: "e" pole and "g" pole; The "C" pole and the "G" pole are not conductive (normal) in the positive and negative tests.

B: The red pen of the multimeter is connected to the "E" pole, and the black pen is connected to the "C" pole, and there is a voltage drop (the model is GT40T101 and the three poles are not passable).

3. Measure whether the transformer is broken, and the normal state is as follows:

Use the multimeter resistance to measure the secondary resistance of the transformer about 80; The primary pole is 0.

4 Whether the rectifier bridge is normal (tested with a multimeter diode file):

A: The red pen connection of the multimeter "-"black pen connection" + "has a left and right voltage drop, and there is no display when the adjustment is reversed.

B: The red pen of the multimeter is connected to the "-" black pen and the two input terminals have left and right voltage drops, and there is no display for reversal.

C: The black pen of the multimeter is connected to the "+" red pen and the two input terminals are connected to the left and right voltage drops, and there is no display for reversal.

5 Check the capacitance C301; c302；c303；Whether it is damaged by heat. (if the damage has been deformed or melted).

6 Detect whether chip 8316 breaks down:

Measurement method: Measure 8316 pins with a multimeter, requiring 1 and 2; 1 and 4; 7 and 2; There can be no short circuit between 7 and 4.

7. Whether the insulation protection of the thermal switch at IGBT is damaged. Detection of poor key action measures whether the CPU port line is broken down

The first thing to say is that the fuse is in good condition, there is no problem with the high-voltage part of the front section, there is no presence of shorts, only the burst pipe, the rectifier diode needs to be checked, and the impedance of the forward conduction and reverse cut-off can be tested with a multimeter. The amplification filter circuit in the back, check the transistor and capacitance, which is also measured with a multimeter, and check the chip and external electronic components in the back, which is also measured with a multimeter.

First of all, the induction cooker is overhauled, and the components are generally burned because of the high temperature caused by the short circuit. Then there is the possibility of the following reasons:

1) The possibility of IGBT burning is relatively high. You can not use the terminal reel, change the new insurance after powering on the test machine, if you still burn the insurance, it is the rectifier bridge is broken, otherwise the IGBT is damaged.

2) The power tube is seriously short-circuited after breakdown, by the way, check the bridge pile, sometimes it will also break down, and there are also non-breakdown. Then you can change to a policy of the same model (10a).

3) Check the high-power resistance, directly replace the push triode 8050 and 8550, filter and resonate capacitors, and then connect the incandescent lamp of about 100W at the position of the fuse for observation. Also check the control voltage, etc.

4) Check whether the parts are loose and complete. No heating: Check whether the transformer has broken feet.

Long beep after plugging in: Check whether the temperature switch terminals are well mated. Won't turn on:

Check that the thermistor terminals are well mated. No small object detection (no alarm): Check whether the resistance R301 R307 is normal.

5) The power cannot meet the requirements. Coil Reel Short Circuit: Test the inductance of the Coil Reel:

The PSD coefficient was L=157 5 h, and the PD series was L=140 5 h. Whether the distance between the pot and the coil disc is normal. Whether the pot is the designated pot or pan.

1. The internal parts are damaged, and the fuse.

or IGBT burned out, it is recommended not to replace the part immediately, you must confirm that the other parts are in normal condition before replacement, otherwise the IGBT and fuse will burn out again. The cost is even greater. Check whether the fuse is blown and detect whether the IGBT is broken.

2. The action of the keys is not good. A multimeter can be used.

The diode gear measures the CPU pole and the ground terminal section, both of which have left and right voltages.

1. The whole induction cooker has no hail slow reaction. The induction cooker did not react and did not explode at the same time, and the fuse was not found to be burned while the electromagnetic grip was buried, so it can be preliminarily concluded that the power chip of the induction cooker was damaged. The 18V voltage generated by the power chip will become +5V voltage for the CPU to work after 7805, if the corresponding voltage is not provided, then the CPU of the induction cooker will not be able to work normally.

2. Induction cooker start-up burn insurance. When carrying out the maintenance of the induction cooker, in the case of the induction cooker start-up and burning the fuse, you can first disconnect the pinline, re-change the fuse, and then measure the voltage at both ends of it, and bridge rectification.

The DC output voltage is 220V-300V, if there is no voltage or less than this voltage, then even if it is replaced, it will continue to be burned. When judging the failure of the induction cooker, we can conclude that the bridge rectifier block is damaged, if there is a voltage when testing the voltage, then we can determine that the IGBT of the induction cooker is damaged, and the fault can be eliminated by replacing this part again.

Summary. Dear, the reasons and solutions for burning the fuse as soon as the induction cooker is powered on are as follows: 1. This situation is caused by short circuit or high temperature, and it is necessary to find the burned components and then replace them.

2. It is also possible that it is caused by damage to the IGBT inside, you can replace it with a new fuse without a terminal reel, and then try to power it on, if the fuse will burn out, it is basically caused by this reason.

The reasons and solutions for burning the fuse as soon as the induction cooker is powered on are as follows: 1. This situation is caused by a short circuit or high temperature, and it is necessary to find the burned components, clean the cavity and then replace it. 2. It is also possible that it is caused by the damage of the internal IGBT before the coincidence, you can replace it with a new fuse without a wiring reel, and then try to power it on, if the fuse will burn out, it is basically caused by this reason.

Excuse me, master, I have an electric stove that burns the fuse as soon as the electricity is turned on?

The reasons and solutions for burning the fuse as soon as the induction cooker is powered on are as follows: 1. This situation is caused by a short circuit or high temperature, and it is necessary to find the burned components, clean the cavity and then replace it. 2. It is also possible that it is caused by the damage of the internal IGBT before the coincidence, you can replace it with a new fuse without a wiring reel, and then try to power it on, if the fuse will burn out, it is basically caused by this reason.

Hello dear, I'm glad to answer for you: the fuse burns as soon as the induction cooker is powered on may be caused by the following reasons:1

Internal fault of the induction cooker: There may be a fault in the internal circuit of the induction cooker, such as damage or short circuit of the capacitor, transformer and other components, resulting in the fuse burning as soon as the induction cooker is powered on. 2.

Faulty circuit board: The circuit board of the induction cooker may be faulty, such as damaged components or poor soldering, causing the induction cooker to burn the fuse as soon as the power is turned on. 3.

The power supply voltage is too high: The power supply voltage of the induction cooker is too high, causing the fuse to burn as soon as the induction cooker is powered on. This can be caused by an unstable supply voltage or an incorrect selection of the supply voltage for the cooker.

4.Poor fuse quality: The fuse is of poor quality, does not withstand enough current, and is easy to blow out.

It is recommended to replace the fuse with a good quality trembling. If the problem cannot be solved by the above big hole method, it is recommended that you contact the after-sales service personnel of the induction cooker so that they can help you diagnose and solve the problem. At the same time, it is also necessary to pay attention to the safety of the use of induction cooker to avoid danger.

Eggplant imitation Wang.

Burning the fuse is an overload or short circuit, so you should look carefully to see if there is any wire damage.

The cause of fuse blowing is generally the cause of short circuit, and there are two main reasons for short circuit, one is the problem of short circuit in the line. The second is that the internal short circuit or excessive load of the electrical equipment module leads to overload of the line.

It should be a place where the stove has electricity.