What should I do if the induction cooker beeps and does not heat up
The beeping sound of the induction cooker does not heat up, which means that the induction cooker does not detect the load pot. The basic structure of a household induction cooker: There will be a sensor in the middle of the electromagnetic heating control panel and the wire coil, which is glued to the glass steel plate of the induction cooker with radiating oil. When the pot is brought up, there will be a beeping sound. On the consumer’s side, the sensor should be loose, or the sensor fell off after being dropped and did not stick to the glass plate well. If the warranty period has expired, you can disassemble it for inspection. Just one click, or take it for repairs.
Common faults and maintenance of induction cooker
One. On
1. Bad keys: Check and replace the key board.
2. The power cord wiring is loose: reconnect.
3. The power cord is not powered on: reconnect or replace it with a new one.
4. The fuse is blown: replace it.
5. The power crystal IGBT is broken: replace it.
6. The resonant capacitor C103 is broken: replace it.
7. Negative diode: check and replace.
8. The transformer is broken, no 18V output: check and replace.
9. The substrate assembly is broken: replace it.
Second, set the pot, the indicator light is on, but does not heat up
1. The thread reel is not locked: lock the thread reel.
2. The Zener diode ZD101 is broken: replace the Zener diode ZD101.
3. The base plate assembly is broken: replace the base plate assembly.
Three. The light is off and the fan rotates.
1. The LED slot is not plugged in properly: re-plug or replace the LED board.
2. The Zener diode ZD2 is bad: replace the Zener diode ZD2.
3. The base plate assembly is broken: replace the base plate assembly.
Fourth, heating, but the indicator light does not light
1. The LED diode is broken: replace the LED diode.
2. The LED substrate assembly is broken: replace the LED substrate assembly.
5. No pot, the indicator light is on, no heating
1. The thermistor wiring is loose or damaged: re-plug or replace the thermistor Resistor components.
2. The integrated block LM339 is broken or the integrated block TA8316 is broken: replace the LM339 or TA8316.
3. Poor connection of the transformer: Check or replace the main control IC.
4. The base plate assembly is broken: replace the base plate assembly.
6. No change in power
1. Adjustable resistance: Change the adjustable resistance.
2. Wrong use or short circuit of the heating/constant temperature resistor: Check the heating/constant temperature resistor.
3. The main control IC is bad: check or replace the main control IC.
4. The base plate assembly is broken: replace the base plate or the base plate assembly.
Seven, the buzzer beeps for a long time
1. The thermal switch is broken/thermistor is broken, and the main control IC is broken: exchange/thermal switch/thermal Varistor/Master IC.
2. The oscillator is broken and the transformer is broken: change the oscillator, check or replace the transformer.
3. The base plate assembly is broken: Check or replace the base plate assembly.
8. The pot is normal, but it flashes and emits a “ding ding” sound
1. The pot detection is at a critical point
2. Replace the resistance of R104
9. Set the pot, the light flashes
1. The current transformer CT is bad: change the current transformer CT.
2. Wrong cookware, non-standard cookware: use the correct cookware.
3. The adjustable resistance of IC1/IC6/R501 is bad: check the corresponding device.
10. No response or inoperability after power-on
1. Poor contact between the plug and the socket or too loose the metal sheet in the plug is not in contact.
2. Insert the plug of the induction cooker.
3. Other electrical appliances cannot be powered on this socket without 220V power supply.
Eleven, the induction cooker always jumps to the keep warm mode
The thing on the circuit board is broken, maybe after getting wet, the circuit board grows hair and rots Yes, if a lot of places grow hair.
The induction cooker has been used for a long time, because the oil smoke is too large when cooking, and it enters the furnace through the fan, which causes the oil to hang on the control circuit board. , If it is serious, replace the control board.
Some smart induction cookers have this function. When the preset maximum temperature is reached, it will jump to the low temperature gear, and when the temperature drops, it will jump to the high temperature gear to perform constant temperature heating within a certain range.
12. The induction cooker automatically shuts down and extinguishes the flame
1. The cookware of the induction cooker is incorrect (it must be iron or stainless steel) and can be used. If it is not made of these two materials, it cannot generate eddy current with the induction cooker to heat it.
Solution: Change to other matching pots.
2. The circuit board is broken.
Workaround: Replace the circuit board.
3. The internal circuit is loose or falls off.
Solution: Check the wiring and replace or re-solder if it is loose.
4. The lamp board of the induction cooker is broken.
Solution: The induction cooker light board is generally touch-type, and the failure may be caused by the failure of the switch button. Just replace the light board.
