Why is the touch induction cooker insensitive? What should I do if the touch screen of the induction cooker fails?
The induction cooker is favored by many families because of its high efficiency and convenient cleaning, but Often in touch induction cookers, the touch screen buttons often fail. So what is the reason for this? If the touch screen buttons of the induction cooker fail, how to solve it?
The reason for the failure of the touchpad buttons of the induction cooker
1. Speaking of the failure of the touchpad buttons of the induction cooker, those who have experience in maintenance know that there is such a possibility: It is caused by the wet contact surface between the induction cooker panel and the shrapnel. In this case, you only need to clean the contact surface of the shrapnel of the induction cooker, but this reason is often unlikely to happen. And this is often due to a problem with the key signal processing, which happens very rarely.
2. Then this situation is ruled out. Let’s take a look at what aspects of the problem can be solved when checking the fault. The first point is to compare and detect the corresponding diodes in the touch screen button circuit of each induction cooker. The voltage at both ends can determine which key may be faulty. If the voltage at both ends of a diode of the induction cooker is low compared with others, it means that the diode is bad, or the filter capacitor at its output end is bad (usually 104 capacitors); Generally speaking, most of the diodes or capacitors removed are not good or bad, and most of them will be normal when measured with a meter.
3. The signal voltages processed by each key are added to the corresponding pins of the 4051. If there is oil or water stains between these lines, even if it is only a little wet, causing a slight leakage between the lines, the corresponding The touch screen buttons of the induction cooker will not work, and should be cleaned during maintenance, otherwise there will be so-called difficult problems.
How to repair the touchpad of the induction cooker if it fails
If this happens, the general user should stop using it and then repair it. The situation is not particularly serious. If you continue to use it, the machine will burn in.
1. First, check whether your machine is still in the warranty period. During the warranty period, it is not allowed to disassemble the machine. If it is still under warranty, please send it to the repair department of the brand in the place for repair.
2. If it exceeds the warranty period, you can disassemble the machine, first clean the control panel circuit board with alcohol, and dry it with a hair dryer, because it is very likely that the control panel is short-circuited by water or oil. Afterwards, check whether the line is loose. If it is loose, be sure to plug it in tightly.
3. The last case is that the user can check whether the keys are useful when they just buy it. If some keys are not very useful or not. Then the sensitivity should be eliminated in time.
Summary: The above is how to repair the touch screen of the induction cooker. In the process of using and repairing, users should pay attention to safety, and they should pay attention to these high-power electrical appliances when repairing and using them. For safety reasons, it is best to send it to a professional repair center for repair.
