Induction cooker inevitably will have some minor problems in the process of use, but some small problems are that as long as the switch is able to return to normal once, but some faults need to be carefully checked, there is a situation that is more headache, that is, the induction cooker does not heat What to do, if you have encountered the problem that the induction cooker does not heat, don't worry, then follow the decoration home network Xiaobian to understand how the induction cooker does not heat, the relevant content of the induction cooker maintenance method!
Induction cooker working principle
1. The induction cooker is based on the principle of electromagnetic induction to heat the food. The furnace surface of the induction cooker is a heat-resistant ceramic plate. The alternating current generates a magnetic field through the coil below the ceramic plate. When the magnetic field lines in the magnetic field pass through the bottom of the iron pot or the stainless steel pot, eddy current is generated, and the bottom of the pot is rapidly heated to reach the food. purpose.
2. The working process is as follows: the current and voltage are converted into direct current through the rectifier, and the high-frequency power conversion device is used to convert the direct current into high-frequency alternating current exceeding the audio, and the high-frequency alternating current is applied to the flat hollow spiral induction heating coil. This produces a high frequency alternating magnetic field. The magnetic lines of force penetrate the ceramic platen of the cooktop and act on the metal pan. In the cooking pot, there is a strong eddy current due to electromagnetic induction. The eddy current overcomes the internal resistance flow of the pot body to complete the conversion of electric energy to thermal energy, and the generated Joule heat is the heat source of cooking.
3, the electromagnetic cooker is the application of electromagnetic induction principle for heating work, is the advanced electronic cookware for modern family cooking food. It is very convenient to use and can be used for cooking, frying, frying, steaming, frying and other cooking operations. Features: high efficiency, small size, light weight, low noise, energy saving, no pollution, safe and hygienic, uniform heating during cooking, can better maintain the color, aroma, taste and nutrients of food, is not to modernize the kitchen The new type of electronic cookware that is missing. The power of the induction cooker is generally around 700-1800W.
What should I do if the induction cooker is not heated?
The induction cooker does not heat. The external cause: including the external grid voltage is higher or lower than the operating voltage range of the induction cooker, then the protection mechanism inside the induction cooker will force the power off. If the internal temperature of the induction cooker is too high, the temperature alarm mechanism will also force the heating function to be turned off. There is also a pot to prevent dry burning, and the induction cooker will also force a power outage.
Induction cooker does not heat the second is the external cause: including temperature sensor open circuit, short circuit protection IGBT tube overvoltage protection IGBT overcurrent protection. You don't have to worry about these problems, and it will be enough to restart them later. Induction cooker inevitably will have some minor problems in the process of use, but some small problems are that as long as the switch is able to return to normal once, but some faults need to be carefully checked, there is a situation that is more headache, that is, the induction cooker does not heat What to do, if you have encountered the problem that the induction cooker does not heat, don't worry, if it is a glitch, try to check it out, maybe it will solve the problem.
Induction cooker maintenance method and fault analysis
Phenomenon 1. Start burning insurance.
1 First, disconnect the wiring pin of the electromagnetic wire disc and replace it with the fuse tube. Measure the voltage across the capacitor C102. The DC output voltage of the general bridge rectifier is 220V-300V. If there is no voltage or continue to burn, judge the bridge rectifier block. Bad.
Analysis reason: If the rectifier bridge breaks down, 220V AC is directly short-circuited.
There is voltage at both ends of 2C102, it is judged that the IGBT is broken, and the fault is eliminated after being replaced.
Analysis reason: There is voltage at both ends of C102, indicating that the DC output of bridge rectifier is normal. If the two output pins of IGBT break down, it is equivalent to DC short circuit.
3 bridge bridge and IGBT are not bad, but still burn insurance, IA8316S integrated block is broken, replaced after troubleshooting.
Analysis reason: Due to the excessive pulse angle of the TA8316S output, the IGBT is overloaded.
Phenomenon 2, the fan does not work
1 Remove the fan FAN plug-in row and check if there is 12V power supply. If there is, the fan motor is broken.
Analysis reason: The power supply is normal, usually the fan motor is short circuited or open circuit.
2FAN plug-in row has no 12V voltage, drive the transistor Q703 emitter breakdown, replace it with Q703, and troubleshoot.
Analysis: When Q703 is not bad, the integrated block IC4 is broken, replaced with IC4 integrated block, and troubleshooting.
3 Fan motor and Q703 are not bad, IC block IC4 is broken, replaced with IC4 integrated block, the fault is removed.
Analysis reason: If the 7th pin of the IC block IC4 has no high-level output, then the emitter of Q703 has no bias voltage, the integrated pole of Q703 still cannot be turned on, and the power supply is in an open state.
Phenomenon 3. The boot operation display is normal, but it is not heated.
1 Measure whether the third leg of TA8316S has 18V voltage. If it is not, you can check whether Q201 has breakdown or ZD201 has breakdown. If there is breakdown, replace it.
Analysis reason: If the third leg of TA8316S has no 18V voltage, the fault point should be in series power supply circuit, so the basic components that constitute the series regulator circuit must be checked first.
The 3rd pin of 2TA8316S has 18V voltage, and the fault should be in the IC3 integrated block TA8316S. After the replacement, the fault is eliminated.
Analysis reason: LED panel display and operation is normal, indicating that the computer control circuit is basically normal, does not burn insurance, indicating that the high voltage board is basically normal, just because the TA8316S has no pulse output to the IGBT control pole, the IGBT can not be turned on.
Phenomenon 4. After power on, the panel light keeps flashing.
1 The crystal oscillator is broken. After replacement, the fault is eliminated.
Analysis reason: The crystal oscillator is broken, causing the CPU central processor to have no clock frequency input, thus making the entire IC1 central processor out of control.
The above is about the induction cooker does not heat how to do, the detailed answer to the induction cooker maintenance method, I do not know if you are satisfied with the introduction of the decoration home network Xiaobian. If you want to know more about the exciting content, please continue to pay attention to our selection manual section!
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