User manual PHILIPS WP3891

[. . . ] If the water pressure is very high, reduce the water flow of the tap to prevent damage to the cartridge. Keep the water purifier away from heat to avoid distortion or breakage. Do not remove the filter cartridge while you use the water purifier. Do not use the water purifier without a filter cartridge. [. . . ] Installation a-type adapter For taps with a round spout with a diameter of 16mm, 17. 5mm adapter or 19mm adapter to fit the diameter of your tap (Fig. Screw the attachment nut firmly onto the water purifier housing (Fig. Take out the original adapter and screw the matching adapter (B-type) onto the tap (Fig. Firmly screw the attachment nut onto the water purifier housing (Fig. Take out the original adapter and screw the matching adapter (C-type) onto the tap through the attachment nut. If water leakage occurs, wind Teflon tape round the screw thread of the adapter before you screw it onto the tap. Firmly screw the attachment nut onto the water purifier housing (Fig. Screw the D-type adapter about halfway onto the water selection unit. Make sure to leave enough room in order to tighten the fitting at a later step. Push the water selection unit firmly onto the tap from below and tighten the 4 screws evenly. Replacement New filter cartridges are available under type number WP3922. Discard the used cartridge and replace it with a new one. When to replace filter cartridge The actual lifetime of the filter cartridge depends on the quality of the local water and the water pressure. For optimal performance of the water purifier, replace the filter cartridge if one of the following situations occurs: - The hollow fibre of the filter cartridge (visible through the cartridge window) has turned rust brown or dark grey (see section `Cartridge replacement indicator'). - The filtered water still has an unpleasant smell or is still turbid after purification. Cartridge replacement indicator To help you determine when to replace the filter cartridge, the water purifier and each replacement filter cartridge comes with a self-adhesive Place this replacement indicator in a convenient place for future reference. Tip: Remove the cover of the filter cartridge and stick the cartridge replacement indicator to the inside of the cover. Check the colour of the hollow fibre of the filter cartridge through the cartridge window from time to time. If the colour of the filter matches the rust brown or dark grey shown on the cartridge replacement indicator, replace the filter cartridge (Fig. Reduced filter cartridge life The filter cartridge has a shorter life and should be replaced more frequently in the following situations: - The water pressure is very low. - When you use cloudy water immediately after heavy rain. [. . . ] Solution Perhaps you have not installed the water purifier properly. Reinstall the appliance according to the instructions in this user manual. Perhaps the tap water pressure is higher than specified. You may need to wind some Teflon tape around the screw thread of the adapter. [. . . ]