How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Mike G. Your Own Question
Mike G.
Mike G., Master Electrician
Category: Electrical
Satisfied Customers: 7380
Experience:  Proven Professional 48 years Experience
29848548
Type Your Electrical Question Here...
Mike G. is online now
A new question is answered every 9 seconds

Replacing a dimmer switch with a updated version. two

Customer Question

Replacing a dimmer switch with a updated version for CL. two switches in the room control the lights. house wires are one white, two black. new dimmer has one black, one red, one red/white.
What's correct?:
Submitted: 1 year ago.
Category: Electrical
Expert:  Mike G. replied 1 year ago.

The wire attached to the black screw is the hot in the lead switch. You'll need a 2 wire voltage tester to determine which switch is the lead switch. The luton dimmer has to be installed in the lead position. See the attachment for the wiring diagram.