What are the faults in commercial induction cooker and how to eliminate them?

Commercial induction cooker is much stronger than what we usually use at home, but its performance is more stable. Commercial electromagnetic cookers are widely used, such as hotels, hospitals, schools, factories, troops and many other public kitchens. Because there is no open flame in commercial induction cooker, it is also very suitable in many underground shopping malls, basements, gas stations and other places. But even the best things have problems, and commercial induction cooker is no exception. So what are its main disadvantages? How to remove obstacles? This article will take you to understand.

Key points of maintenance in commercial induction cooker

1、? Basic code:

E 1:？ No marijuana alarm? E2:？ Over-temperature protection of pot? E3:？ Pot thermistor is open; ? E4:？ Short circuit of IGBT thermistor? E5:？ IGBT？ Is the thermistor open? E6:？ Low voltage? E7:？ Short circuit of pot thermistor? E8:？ Short circuit of IGBT thermistor? E9:？ Excessive tension

Note: After power-on, the red light (power light) flashes, the blue light does not, and the display screen shows "-". At this point, the switch is turned on. If the knob switch is turned and the display element changes, it means that the knob switch is damaged or the related plug or connecting rod is loose. Replace the switch potentiometer (encoder) at this time. If it cannot be discharged, it may be that the switch circuit is abnormal.

E 1: no pot. E 1 will be displayed after startup (after a few seconds, the extension will display 1 or "-"), and the red light will flash and "one" will be displayed at the same time.

Answer: Small fry stove/flat-headed low soup stove should not be put into the pot. Put it in the pot and see if it is normal.

B, is it? If the cauldron and other pots display 1, check whether the distance between coils has changed or whether the pots are magnetized. Please use the special pot issued by the company at this time.

C, is it? When the red light is on, the current gear is displayed. The blue light goes out as soon as it flashes and appears repeatedly. The pot is wrong or the coil is far away.

E2: pot (coil) over-temperature protection. After a period of startup, E2 appears. Check whether the coil fan is running. If it is running, it is likely that the thermistor of the coil is aging. At this time, replace the coil without temperature seat.

E3: Turn on the thermistor and replace the temperature measuring base of the coil.

E4: E4: The IGBT thermistor is overheated, and the cooling fan on the movement does not turn, or it is too slow. Check the fan and plug. If there is no problem, the relay may be damaged. At this time, the emergency repair method is: clamp the upper shell of the relay, even if the contacts of the relay are always open. But make it clear to the customer that the power supply will turn, but it will not affect the use.

E5:IGBT？ The thermistor is open. At this time, try to change the movement or professional maintenance to remove the plate and replace the aluminum temperature measuring base.

E6:？ The voltage is too low, and the power supply voltage is not enough.

E7:？ The thermistor of the pot is short-circuited, and the temperature measuring base at the bottom of the pot is faulty. Replace it and solve it.

E8:？ IGBT thermistor is short-circuited. At this time, try to change the movement or professional maintenance to remove the plate and replace the aluminum temperature measuring base.

E9:？ The voltage is too high, the power supply voltage is too high.

2、? There is no response when power is turned on, the display is not bright, and the switch handle cannot be turned on to work. At this time, disassemble the front plate of the furnace under the condition of power failure, and check whether the cable of the transformer is damaged or the plug is loose. If the fault still exists, it may be that the transformer is damaged. Note: This operation must be carried out in case of power failure.

3、? When the power-on display is normal, twist the switch handle, and there is no response. At this point, it is very important to check the potentiometer or encoder of the switch handle to see whether the potentiometer and encoder rotate together when turning the handle, whether the wiring is intact and whether the plug is loose. If these are all in good condition, open the top cover of the chassis, see if the plug connecting the switch is loose and plug it in again. If it cannot be discharged, replace the switch. Note: If it is a potentiometer, the switch will beep all the time when it is blocked.

4、? The machine works normally, but after working for a period of time, the switch in front of the machine trips automatically and can work again after being turned on. This situation is generally due to the insufficient overcurrent capacity of the front switch, which requires the customer to replace the switch.

5、? If you can't power on, you will trip every time you power on. At this time, disconnect the machine grounding wire and hang it up, and then turn it on. If it can be turned on, it means that the machine has leakage. Check the insulation cotton, fan or switch of the coil. At this time, you have to remove the suspected parts one by one. When you remove which one can close the brake, it means which part is broken and must be replaced or repaired. Note: After repair, the grounding wire must be replaced.

6、? If the fans do not turn, first check whether each fan does not turn. If one fan rotates, the fan control circuit is good. At this time, check the connectors or plugs of the non-rotating fans. If all the fans don't turn, it may be that the control circuit is damaged, and the above E4 method is used for emergency repair.

7. After electrifying, the digital display is chaotic, pen is missing, buzzer is silent, and the display is different every time it is electrified. The main chip or crystal oscillator or two filter capacitors beside the crystal oscillator are damaged.

8, power-on trip, first of all, to determine whether the trip is caused by machine damage or the poor quality of the customer switch itself.

The above contents are the introduction of common faults and troubleshooting methods in commercial induction cooker. If friends encounter the above problems when using commercial induction cooker, they can try to solve them according to the methods provided by Bian Xiao. If it still doesn't work, you need to take it to the repair shop and ask the maintenance master to repair it. If the above problem is not the cause, but the quality problem of commercial induction cooker itself, then you should contact the dealer or manufacturer for replacement or return.