The filter number corresponding to the numbered light indicates that the filter needs to be replaced.
- Replace the filter that is indicated by the illuminated light. See How to Change Filters
- After replacing filter, press and hold the black reset button on the backside of the base for at least 3 seconds or until the light turns off. (A paperclip is the perfect tool, but anything similar will do). Note: The unit needs to be powered on when pressing the reset button for it to properly reset and continue to accurately track your filters.
- If the filter light does not reset, unplug AquaTru from the wall outlet for thirty seconds, plug it back in and turn the power switch off and then back on. Press the reset button for at least 3 full seconds, making sure it is fully pressed (again, this is where a paperclip can come in handy).