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Electrical Wire and Cable


How to Install a Time Switch for an Exhaust Fan

Installing a Bathroom Exhaust Fan Control Switch or Occupancy Sensor: Selecting and Wiring a Auto On or Auto Off Exhaust Fan Switch.

Wiring a Bathroom Exhaust Fan Time Switch or Occupancy Sensor
Electrical Question: I have a small bathroom with a ceiling fixture that includes a light, a heat lamp with circulating fan and an exhaust fan.

This electrical wiring question came from Steve, in Steamboat Springs, Colorado.

Dave’s Reply:
Thanks for your electric wiring question Steve.

Preparations for Wiring a Control Switch for a Bathroom Exhaust Fan

Application: Installing a Bathroom Exhaust Fan Time Switch Control.
Skill Level: Intermediate to Advanced. This electrical wiring project is best performed by a Licensed Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and the access to the wall switch for the exhaust fan and if a larger switch box will be required.
Precaution: The bathroom exhaust fan circuit should be identified, turned OFF and Tagged with a Note before working with the wiring and installing the fan speed switch.
Notice: Modifying existing wiring or installing additional bathroom electrical wiring should be done according to local and national electrical codes with a permit and be inspected.

Important:
The exact wiring of a bathroom exhaust fan switch will depend on the exact switch that is selected, the type of exhaust fan that is installed, and the electrical circuit wiring in the bathroom. Please consult the installation manual and owners manual which is provided from the manufacturer for the aforementioned equipment.

Example of a Combination Bathroom Exhaust Fan
bath exhaust fan

Selecting an Auto On or Auto Off Exhaust Fan Switch

Installing a Bathroom Exhaust Fan Control Switch or Occupancy Sensor

The wiring of  the bathroom exhaust fan switch will depend on the exact switch that is selected, however below is a description of the most common control switches and how they are wired.

Example of a Digital Time Switch
digital timer switch

More about Wiring Exhaust Fans

How to Wire a Bath Exhaust Fan
Bath Exhaust Fan

Bathroom Exhaust Fan

Answers to all of your questions about installing a bath exhaust fan and your bathroom exhaust fan replacement project.

How to Wire a Switch
electrical-switches

Wiring a Light Switch

Wiring Diagrams
Fully Explained Light Switch Wiring Diagrams. Detailed Electrical Wiring Diagrams and Pictures assist your Home Electrical Projects.

Topics related to Home Automation and X10 Controls
Home Automation
Electrician Explains about Home Automation in this Series of Articles.


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  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handywomen, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.




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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