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How to Replace a Bathroom Exhaust Fan in Singapore

It is extremely important to replace a bathroom exhaust fan if it does not work properly to dry the air in the humid conditions of Singapore. It maintains proper ventilation and reduces moisture content. Therefore, it contributes to reducing the growth of molds and mildew. However, like any other appliance, exhaust fans are prone to some faults over time. Then comes when you must replace your exhaust fan with a new one. Replacing a bathroom exhaust fan is straightforward and requires proper tools and guidance. Therefore, this guide helps homeowners and professionals efficiently replace a bathroom exhaust fan.  

How to Replace a Bathroom Exhaust Fan in Singapore?

Replacing a bathroom exhaust fan is straightforward with the right tools and knowledge. You need to know the steps to replace an exhaust fan in bathroom. PS Home Maintenance Singapore explains a complete process for bathroom exhaust fan replacement along with their professional services in exhaust fan installation, ceiling and exhaust fan repair, and house rewiring. 

Tools and Materials Needed

Before you begin, keep the following material to avoid inconvenience during the replacement process. 

  • New bathroom exhaust fan
  • Screwdriver 
  • Drill 
  • Pliers
  • Wire connectors
  • Utility knife
  • Ladder or step stool
  • Safety goggles
  • Dust mask

Step-by-Step Guide to Replace a Bathroom Exhaust Fan

Step 1: Turn Off the Power

Safety is paramount when working with electrical appliances. Locate the circuit breaker that controls the power to your bathroom and turn it off. Turn on the fan and check if any current flow is in it. If it does not turn on, you can safely proceed to work on it. 

Step 2: Remove the Old Exhaust Fan Cover

A ladder is the best option to reach the old exhaust fan. When you reach the exhaust fan, remove its cover by simply pulling it. If the cover is held in place with screws, you should remove them to uncover the exhaust fan. Keep the cover on the table or any other surface.

how to replace a bathroom exhaust fan

Step 3: Disconnect the Old Exhaust Fan

After removing the cover, remove the screws that hold the exhaust fan with the ceiling joist. Bring the fan down to view the electrical wiring. Use appropriate tools to disconnect the fan from the electrical wires. Take a picture of the connections to use them while connecting the new exhaust fan.

Step 4: Remove the Exhaust Fan Housing

Different fan models have different assemblies. You have to remove the fan housing that could be attached with screws or clips. Remove the screws and clips to help remove the housing. If the fan is connected to ductwork, you need to disconnect it. Afterwards, carefully bring down the house.

Step 5: Prepare the New Exhaust Fan

Unpack your new exhaust fan and carefully read the manufacturer’s instructions. The size and rating of the new fan should match those of the old one. If the new fan is bigger, you need to cut the ceiling hole and make it bigger. Moreover, check the ductwork and wiring for compatibility with the existing system. 

Step 6: Replace a Bathroom Exhaust Fan

Put the new fan housing into place and connect the ductwork. Tighten the duct with tape or clamps as needed. Align the housing with the ceiling joist and attach it using screws provided. Ensure it’s firmly attached to prevent any movement or noise during operation.

Step 7: Connect the Electrical Wiring

Connect the fan with the electrical wiring. Use the picture you captured earlier as a reference. Connect the neutral, live, and ground wires. Utilize wire connectors to sort the cables in order and place them in the housing cleaning. 

Step 8: Attach the Fan and Motor Assembly

Once the housing is connected, attach the fan and motor assembly per the manufacturer’s instructions. Generally, you have to snap the assembly into place and secure it with screws. Ensure the fan blades spin freely without any obstruction.

replacing a bathroom exhaust fan

Step 9: Install the New Fan Cover

Attach the new fan cover and squeeze the metal clips to put them into the slots in the housing. Tighten the screws if the cover has screws. If the cover is screwed in, use a screwdriver to secure it. Make sure the cover is properly aligned with the ceiling. 

Step 10: Test the New Exhaust Fan

Turn the electric power supply on at the circuit breaker when the installation is complete. Turn on the new exhaust fan to ensure it’s operating correctly. Listen for any unusual noises and check for proper ventilation. If the fan doesn’t operate, verify the wiring connections and ensure everything works alright. 

Conclusion

In conclusion, it is straightforward to replace a bathroom exhaust fan. However, you need proper guidance and tools. The above steps help you achieve a seamless exhaust fan replacement. A well-maintained bathroom exhaust fan ensures a moisture and odor-free bathroom. Therefore, it minimizes mold and mildew growth. 

Frequently Asked Questions

The CFM rating indicates how much air the fan circulates. Typically, you'll need a fan with at least 1 CFM per square foot of space. A fan that's too small will not remove moisture effectively. Therefore, the fan will have to run longer, potentially leading to more wear on the motor.
It is quite a simple process if you follow the guidelines and installation steps properly.
If you want to constantly keep the exhaust fan on, choose a quieter model that does not make too much noise while operating. Otherwise, it will be a continuous source of noise pollution.
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