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 AssuredElectrical Your Own Question
AssuredElectrical, Master Electrician
Category: Electrical
Satisfied Customers: 4241
Experience:  Contractor-42+ Years in the ElectricalTrade
Type Your Electrical Question Here...
AssuredElectrical is online now
A new question is answered every 9 seconds

My old speed control switch has 1 red 1 1 black wire plus

Customer Question

My old speed control switch has 1 red 1 white 1 black wire plus ground(green) 8amps which switch is compatible? It controls NuTone whole
house fan Model WHV-30. It is labeled fan accessory model CFS-2
Submitted: 2 years ago.
Category: Electrical
Expert:  AssuredElectrical replied 2 years ago.

Welcome. My name is ***** ***** would be glad to assist.

Can you please clarify the situation?

You posted one switch and asked which one is compatible?

Are you just wanting one to replace a bad one and need the compatible one to replace it?


Customer: replied 2 years ago.
replace bad one
Expert:  AssuredElectrical replied 2 years ago.

Ok, thanks for the information.

There is difficulty finding the specification on your fan unfortunately.

Have found several 2 speed switches, but cannot confirm your motors amperage.

Is there any way to get the motor nameplate information to see what the Amp draw is?

Customer: replied 2 years ago.
no fan in unfinished attic & I would have to walk on beams which is unsafe
Expert:  AssuredElectrical replied 2 years ago.

Ok, I can understand, we do it all the time, so it is second nature working in attics, but definitely tricky.

Wanted to verify the motors amperage for that reason to be sure it is a fit.

Not much luck in one similar to yours.

Expert:  AssuredElectrical replied 2 years ago.

I would just install a standard style toggle switch, instead of a fancy wall control.
All you need is a a Single Pole, Double Throw Center off switch.
Connect the common power and the 2 speeds just like the one you have now.
Up will be one speed, down the other speed and center is off.

CLICK HERE to see one

These are rated at 15 amps and should serve well.
They can be found at most building supply, just may be in a different brand