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Old 02-06-2014, 12:02 PM   #1
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Weird Situation. Looking for Input.

My bathroom exhaust fan had died on me. Everything worked great before.
NOW, I receive a constant 120v at the fan end.

I decided the switch had to be faulty.
-Replaced switch same problem.

I had a bit of trouble pulling down the old fan. which made me believe I had pulled a little hard on the wire and broke the insulation making both wires live.
-Cut holes throughout ceiling and wall cut brand new wire fed through attached at switch as it exactley worked before. "no luck still 120v whether switch is one or off."

The only thing i had done different around the house lately is run some wire through the ceiling in the basement so I didnt have a extension cord hanging from my projector. I tied into a existing outlet with no issues.
- Opened up existing plug in basement reconnected everything. looked for pierce marks or anything (no sign of wear all looks instact.
- Flipped breaker switch as a last resort and tried switch upstairs. 120V even when off.

I usually do not switch off the breaker. i just flick the switch, my first event was when i touched the wires to be surprised it was live.

I do not understand. what else could be the colprit?


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Old 02-06-2014, 01:00 PM   #2
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How are you measuring 120volts? Between what two points. You should be measuring between hot and neutral not hot and ground. It is possible the neutral is open or the fan is bad.
Also if you are using a digital meter it could be reading 120 volts even with the switch off. It's called phantom voltage. Did you measure it with the fan still connected?


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Old 02-06-2014, 01:06 PM   #3
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Thank you for the response.
It was the wire as expected. But was playing with alternate switches yesterday.

So today after replacing the wire the colprit was indeed just the switch in living room over riding.

And correct hot to neutral. Multimeter
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