Replacing vs. Cleaning an Exhaust Fan

July 7, 2019

By Austin Heyen, Head of Aurora’s HVAC Division

Does your existing bathroom fan seem to be lacking efficiency? Before you upgrade to a new or larger model, try giving it a good cleaning. Signs that a cleaning is needed include:

  • Accumulated debris on the decorative grille

  • Sudden decrease in effective air circulation

  • Loud operation

Bathroom fans should be cleaned twice yearly to remove dust, grime and allergens that collect on the outside of the grille and the inside of the housing. To clean a bathroom fan, turn the power off at the circuit breaker and remove the cover from the ceiling. Place the cover on a towel and vacuum over both sides using a brush attachment. Use your vacuum’s dusting attachment and/or crevice tool to clean the inside of the housing and motor. Place the cover back on, turn the power back on and test the fan’s operation. If cleaning the fan doesn’t fix the issue, the fan may need to be replaced. has a great step by step guide to replace your bathroom exhaust fan and light combination.  Although homeowners with some carpentry and electrical experience can approach this as a DIY project, if you’ve never worked with electrical equipment before, you should hire a professional to make sure everything is installed correctly. Don’t hesitate to give us a call at Aurora Plumbing, Electrical, Heating and Cooling to schedule an upgrade. 701-242-7202.

Home Advisor's link to replacing your fan.