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About Greg Hughes
Expertise
Residential Electrical including Appliances and HVAC with 28 years experience.

Experience
Started training as an electrician in 1979, worked for major companies and the government.

Education/Credentials
Graduated from Electrician's School, Carrier Training, and various specialty schools.

You are here: Experts > Home/Garden > Home Improvement/Repair > Electrical Wiring in the Home > switch for blower

Electrical Wiring in the Home - switch for blower

Expert: Greg Hughes - 11/7/2009

Question
Im replacing a dimmer switch for wood stove the old switch has a blk and white wires the new has 2 blks and a ground why are they diffent and how do u hook the switch up

Answer
They are different because they were made at different times, perhaps from a different company, both wires are hot so it makes sense that they are black, and it is easier for them to stock the same color wire than two.

Read the instructions that came with the dimmer. Unless it specifically states otherwise, your switch does not care which wire gets the hot coming in and the hot going out.

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This site answers questions related to home electrical wiring, home wiring, general electrical help,and other electrical questions related to aleternating current (AC). You can find help on the National Electical Code, home electrical issues, wiring electrical outlets, installing lighting, electrical grounding, and general electrical help for do-it-yourself projects not require an electrician. If you do not see your home electrical wiring question answered in this area then please ask your electrical wiring question here