Although the micro switch is small, it has a big role! It is hidden in various devices and silently controls the on and off of the circuit. So, how to judge whether this little guy is broken? Don’t worry, let’s talk about the judgment method of the micro switch today, so that you can easily become a home expert!

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Introduction and judgment method of micro switch

The micro switch, this small device, triggers the switch action by pressing. It is actually very simple to know whether it works well. Pick up your multimeter, adjust it to the on-off position, and connect the two plugs of the micro switch. Press the metal sheet lightly. If the buzzer on the multimeter sounds, it is connected; release your hand, the buzzer does not sound, it is disconnected. In this way, you can quickly judge whether the micro switch is working properly.

Analysis of micro switch failure examples

I remember that there was a problem with my Bluetooth headset. The micro switch could not be pressed, resulting in the inability to start normally. At first, I thought the switch was broken and was ready to replace it with a new one. But when I took it apart, it turned out that the spring sheet inside had slipped off. Carefully move the reed back to its original position, and then stick it with some glue, and the problem is solved. This experience tells me that the failure of the micro switch is not necessarily broken, sometimes it may be caused by a small shift or damage to the internal parts.

Tips for judging micro switches on different devices

When it comes to micro switches on different devices, the judgment method must be flexible. For example, if the water heater cannot ignite, in addition to gas, power supply, igniter and other problems, the micro switch may also be the culprit. At this time, you have to check whether the connection line is loose, and then gently polish the contacts with sandpaper to improve the contact. If it still doesn’t work, you may have to replace the micro switch. Of course, don’t forget to check other possible reasons, after all, the fault does not exist alone.

How about it, have you learned to judge the quality of the micro switch? Next time there is a problem with the small appliances at home, you might as well check it yourself first, maybe the problem will be solved!