The hardest faults to uncover are those that occur only From time to time—intermittent gatherings. They may be caused by terrible connections, dust, dirt, corrosion or just damaged 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?i có ghi