Got Mildew? Here's How to Install a Bathroom Exhaust Fan

In this brief article brought to you by Mr. Electric, we give you a rough outline of how to install a bathroom exhaust fan. If you’d rather leave this work to a certified electrician, then call Mr. Electric and schedule a convenient appointment today.

What to know before installing

Installing a bathroom exhaust fan requires a moderate level of electrical knowledge and expertise. While this task can be undertaken by a confident DIY enthusiast, it involves working with electrical wiring, which carries inherent risks.

Familiarity with basic electrical wiring, including how to identify hot, neutral, and ground wires, is essential. Knowing how to safely connect and disconnect these wires is crucial. You should also know how the circuit breaker works and how to use basic electrical tools such as wire strippers, a voltage tester, a screwdriver, and pliers.

Moreover, you should have the ability to read and understand basic wiring diagrams that may come with the new fan, to mount the new fan securely, and to connect the ductwork to the fan.

Safety precautions to remember

Always turn off power at the circuit breaker before beginning any electrical work and use a voltage tester to confirm that the power is off. Still, wearing appropriate safety gear such as gloves and safety glasses is wise in any case.

Remember to check with local building codes, regulations, and relevant compliance. Governments and insurance companies are just a couple of the interested parties who want this compliance.

Guide to replacing the bathroom exhaust fan

• Turn Off Power: Locate the circuit breaker for the bathroom and turn it off. Use a voltage tester to ensure the power is off at the fan.
• Remove the Old Fan: Remove the cover of the old fan. Disconnect the wiring by unscrewing the wire nuts and separating the wires. Unscrew the fan from the mounting brackets or housing.
• Prepare the New Fan: Follow the manufacturer’s instructions to prepare the new fan for installation. This might involve attaching mounting brackets or making adjustments to the housing.
• Connect Wiring: Connect the new fan’s wiring to the existing house wiring. Typically, this involves matching the color-coded wires (black to black, white to white, and green or bare wire to the ground).
• Mount the New Fan: Secure the new fan to the ceiling joists or mounting bracket. Ensure it is firmly attached and won’t vibrate or move.
• Attach Ductwork: Connect the ductwork to the fan, with a tight fit to prevent air leaks. Use duct tape or a clamp if necessary.
• Test the Fan: Restore power at the circuit breaker and test the fan to ensure it operates correctly. Verify that the fan turns on and off properly and that it effectively vents air.

When to hire a professional

Some electrical repair service is best left to a certified electrician. If your exhaust fan or wiring are making loud and unusual noises, sparking, or giving you cause for concern, then play it safe and call Mr. Electric to hire a uniformed professional.

We have you covered with everything from maintenance and repairs to exhaust and ceiling fan replacement services. Call Mr. Electric to speak with a member of our team today.