First, the failure phenomenon of the soymilk machine is energized: that is, a continuous beep alarm sound is issued.

Check whether the shell of the heating pipe, water shortage sensor, R5r6c11c12u1⑥ pin and their connections are normal. Analysis and maintenance: first make sure that the water level in the soybean milk barrel is normal and pure water or distilled water is not used.

Second, the failure phenomenon of the soymilk machine: it is not cooked, and the fault is reported in advance.

Solution: This failure is not only caused by the soymilk machine itself, but also may be caused by incorrect operation. For example, if beans have been soaked in water for too long and have deteriorated, the safety identification function of the soymilk machine itself will issue a safety alarm function to remind users. Or because too much water is added, it exceeds the load of the soymilk machine, which makes the soymilk machine unable to work. Therefore, when using the soymilk machine, it is best to add water between the upper and lower water lines so that the soymilk machine can operate normally.

Third, the failure phenomenon of soybean milk machine: overflow failure.

Solution: In the process of making soybean milk, the benefits of soybean milk are everywhere. This situation is relatively common, and I believe many people have met it. In fact, this mainly comes down to the following reasons:

1, the mesh of the net cover is blocked, and the treatment method: clean the mesh.

2. The anti-overflow electrode is not cleaned. Treatment: Clean the anti-overflow electrode.

3, too much water, treatment: please add water between the upper and lower water lines.

Fourth, the failure phenomenon of soybean milk machine: burning failure.

Solution: When the soymilk machine is burnt, it is generally considered that the soymilk machine has problems and can no longer be used. In fact, when the soymilk machine is burnt, it may be cleaned with the heating tube of the soymilk machine, so it is necessary to clean the heating tube of the soymilk machine. In addition, using mung beans to make soybean milk alone may also cause such a failure. At this time, it is best to add peanuts or soybeans to make it together, which can solve this problem.

5. Failure phenomenon of soymilk machine: no heating.

Pay attention to listen to whether there is a relay pull-in sound when entering the heating process in sequence, and analyze and repair: start the working procedure after electrifying. If yes, check the heating pipe after power failure; If the heating tube is normal, disconnect the heating tube H from the circuit and check whether the contact of relay K2 is normal. If there is no relay snap sound, check whether there is a voltage of about+5v at the U 1② pin, and check whether R 13Q2K2D6 and R 15C 15 are normal.