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Alex, Master Electrician
Category: Electrical
Satisfied Customers: 1750
Experience:  Owner of independent electrical contracting company. Licensed Electrical Contractor in CT.
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I am installing a in wall timer for a porch light. I timer

Resolved Question:

I am installing a in wall timer for a porch light. I timer I removed has two black wires whcih was connected to the only line coming in, one black to black and the other black to the white. The new timer has a Black, Red, and white. How do I connect with only one line coming into the box.
Submitted: 5 years ago.
Category: Electrical
Expert:  Alex replied 5 years ago.
Hello. What color are the wires in the switch box? Are they both black or black and white?
Customer: replied 5 years ago.
Just one line coming into the swtich box with a black and a white wire.
Expert:  Alex replied 5 years ago.
I'm sorry to say but that means there is no neutral in the box. So you can not use that timer. You need A timer that does not require neutral. Please check the following links for few models that does not require neutral;

Let me know if you have more questions.  
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