Philips HU4805 User manual - Page 16

8 Troubleshooting This chapter summarizes the most common problems you could encounter with the humidifier. If you are unable to solve the problem with the information below, visit www.philips.com/support or call 1-866-309-8817 for assistance. Problem Possible solution The humidifier does not work. • Make sure that the humidifier is connected to an electrical outlet. • Make sure the reservoir is filled with water and the upper unit is placed properly onto the reservoir. • If the problem persists, call 1-866-309-8817 for assistance. There is no air humidification. • Make sure the reservoir is filled with water and the upper unit is placed properly onto the reservoir. • The humidifier will stop working if the current humidity level reaches 70%RH. Humidity level above 70%RH does not make users feel comfortable, so the humidifier automatically turns off to ensure optimal humidification performance. The reservoir leaks. • Make sure the humidifier is not overfilled with water. • Make sure the humidifier is properly assembled every time after you clean it or after you remove the upper unit and/or reservoir for refilling. • Make sure the reservoir is properly placed. If the problem persists, call 1-866-309-8817 for assistance. I do not see the current humidity indication change. • Make sure you have assembled the filter around the filter support. • The filter is dirty. Rinse and/or descale the filter (see the chapter 'Cleaning the filter' and 'Removing scale'). • Your room might have too much ventilation. Please close doors and windows. • Your room size is too big. The recommended room size is 269 sq.ft/25m2. There are some white deposits on the filter. • The white deposits are called scale and they consist of minerals from the water. Scale on the filter affects the humidifying performance, please follow the cleaning instructions in the user manual. The filter turns yellowish after some time. • The yellow deposits are a natural effect of the wick material, and it has no impact on humidification performance. Clean the filter to remove the scale, and replace the filter every three months. 14 EN