Boat switch, which is very common when the red light is on. Sometimes it can't be turned off, it just can't bounce back, and the air switch often jumps. The way to deal with the problem is as follows:

There is a metal sheet inside the boat switch, with a spring fulcrum in the middle. The spring displacement and the aging and deformation of the plastic support make the switch inflexible. It can be disassembled after power failure. If the plastic parts are not damaged, it may be recovered. The zero line inside the switch is straight through and has nothing to do with the switch components. Therefore, if the switch trips the air switch, the insulation layer of the zero line passing through the switch is damaged. The damaged section can be cut off and connected from the beginning. Pay attention to ensure the insulation. It may also be that the pin of the indicator light is short circuited. Just connect it from the beginning.