All the power sources in the house are dead, but the lights are on and there is no trip. In Xuanxi Community of Harbin, there is no property in the old building.

First, look at how many switches there are in your house. Generally, there is a master switch in the corridor, and there is an access switch at home, which is divided into two switches, one is the power supply and the other is the light. If there are two, check the switch of the tube power supply. If there is only one switch, look at the wires behind the switch in your home. It may be that the wire connected to the power supply has come loose and fallen off.