When we use the device, there are usually some problems such as poor filtering effect and long filtering time. In fact, this may be just a problem with a filter component. If we know how to detect it , it will be well repaired.
The first is the exclusion method. Under normal circumstances, after a long time of use, the filter will burn out. Once burned out, there will be color changes, etc., and some irritating odor will also be emitted.
The second is the tapping method. Much of this happens because the equipment has been in use for too long. This is mainly due to the occurrence of peeling of the solder joints of the internal parts, resulting in poor contact. If you find that there is such a phenomenon in the filter, you can test it first by tapping. If there is any problem, it means that there is a problem in the part we hit, we can press it and increase the tightness of the connection to see if the air filter problem is solved.
The third is the local heating method. The machine will cause the machine to malfunction when it is running for a long time at a high temperature. However, in this case, as long as you close the machine, the machine will recover, because some internal components are not suitable for running at high temperatures. Therefore, we can also observe which components will fail after heating up during normal operation.