The toughest faults to seek out are those who occur only Now and again—intermittent occasions. They may be attributable to poor connections, dust, dirt, corrosion or just damaged wiring or connectors. Gi?i m?i (bao g?m t?t c? gi?i nào có s? thay ??i, c?p nh?t m?i ho?c ?i?u ch?nh)V?y nên nhà cái 123b ch? c?n có b?t k? hành ??ng gian l?n ha