Installing a Dimmer Switch for a Light Fixture
I am replacing a dimmer switch that controls a light fixture and an outlet. In addition, there is one more black lead that goes somewhere
Dimmer Switch Wiring
Question: I am replacing a dimmer switch that controls a light fixture and an outlet. In addition, there is one more black lead that goes somewhere, not sure where. So while replacing the dimmer, I thought I would separate out the outlet from the light fixture. I have removed a pig tail to the switch and left with 4 black wires. I turned the breaker back on to figure out which black wire is the source back to the breaker. I can touch one wire to two others and get 120 volts on the MM. On the third wire, I get just under 40 volts. What causes only a 40 volt reading on the circuit?
This electrical question came from: Jason, a Homeowner from Whitefield, New Hampshire
See more about Home Wiring for New Hampshire
Additional Comments: Nice resource!
Thanks for your electrical question Jason
The Following links will assist you with your electrical question:
3 Way Dimmer Switch Wiring Diagram
Fully explained 3 way dimmer switch wiring diagram will take the mystery out of wiring a 3-way dimmer switch.
Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
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