This case is a rare problem. Nothing is wrong with the main switch board, but the wiring connecting to the power source is disconnected within the walls. Thank God it is for the lighting to power 2 rooms upstairs which allowed us to draw supply from somewhere near (lights consume low power). We did exactly that and the lights in both the room is able to be turn on again! Please call us if you have lighting issue around Setia Alam at 012-2088629 for immediate assistance.