Thank you for your question regarding your 668RP exhaust fan/light. First, remove the grille and lens assembly to gain access to the inside of the fan so you can vacuum out the inside. We also recommend that once a year you clean the blower wheel inside the fan housing. To see how the unit is put together, you can download the installation instructions from our website. You can also contact the Technical Services Department at 1-888-336-6151 for further assistance.
Date published: 2014-09-15