liht switch has power to both sides but light does not work


I have severial rooms that the light switch does not work but both sides of the switches have power going to them, before it happend the lights in all the rooms flickerd on and of -------------------------------------
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I would guess that you have a loose or disconnected neutral somewhere in that circuit. It could be at any receptacle, switch, or point of use, or even the panel itself.
The interrupted, usually black, wire that you read on each side of the switch is the hot. Neutrals are typically white. If your switch has a black and white on the switch, it is a "switch leg" - a way to use normal Romex while ignoring color conventions (pretend both wires are black).
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DanG wrote:

Of course, a good electrician uses tape or a permanent marker to mark the ends of the white wire, in that application. Just being polite to the next guy in there 20 years later, who may get distracted before he puts the wall or ceiling box back together. (especially the ceiling box)
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If both terminals of a single pole switch are reading hot, when tested to ground, and this situation exists in several rooms, you likely have an open circuit on the neutral conductor
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On Aug 16, 11:02pm, "Stormin Mormon"

Assuming this is in North America? The switch is (or switches are) in the hot/live side of the lighting circuit. The 'return' is the neutral, usually white wiring; it is not switched but must be intact all the way from each/all light fixture/s back to the main panel, where it there should be white neutral wires connected firmly to the neutral bar (not ground!). Sounds like that neutral side of the circuit may be broken/ disconnected somewhere. Check all connections. Was anything recently disturbed by other work, drilling holes, sawing, plumbing etc. that might give clue where to look for a break in the circuit?
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