The hardest faults to discover are those who come about only Occasionally—intermittent gatherings. They can be caused by poor connections, dust, Grime, corrosion or simply 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)K?t qu? c?a ?ài nào s? ???c m? th??ng tr?c ti?p t?i tr??ng quay