The toughest faults to locate are those who transpire only From time to time—intermittent occasions. They can be brought on by undesirable connections, dust, Dust, corrosion or simply broken wiring or connectors.Ca?ch ?ô?i ve? tru?ng th???ng x? s? mi?n Nam an toa?n nhâ?t chi?nh la? b?n hãy mang t?? ve? sô? ?o? ?ê?n t?i tru? s?? cu?a nha? ?a?