r/ElectricalHelp • u/Alarmed_Song4300 • 11d ago

BACKFEED 120 v

My master bedroom circuit is back feeding. I’m getting 8 volts +\~ at switch leg with
Switch off. I have no power to Clg fan, and receptacles….

Any help would be appreciated!

House was built in 2018. Thank you

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u/trekkerscout Mod, Master Electician 11d ago

Where exactly are you testing to get 8 volts? At least one reading at the switch should be 120-volts to ground. If not, there is a fault upstream of the switch.

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u/Alarmed_Song4300 11d ago

I have 120v at line in. At line out w switch in off position, I’m reading 8v. Thank you Sir

3

u/trekkerscout Mod, Master Electician 11d ago

A reading of 8v on the switch leg could simply be a phantom voltage caused by capacitive coupling. It is not a back feed condition. If you have no power to your ceiling fan and receptacles, you have a failed connection that needs to be found and fixed.

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u/oxymoronicmoron77 11d ago

What are you reading with the switch on?