U1

• U1 Filter Replacement Schedule and How to Replace Filters

  The U1 Space-Saving 4-in-1 Water Filter System uses quick-twist filters and a hydrogen module that are easy to replace without any tools. Here is when to replace each one and how to do it. Replacement Schedule QT Sediment and Carbon Pre-Filter — Every 6–12 months. This filter removes sediment, ...

• U1 will not filter any water

  The U1 front panel shows "No Water" and "Fresh Water" notifications in red(shown below), meaning there is no available filtered water to dispense. Sometimes, an airlock phenomenon can occur with the new or fully drained water systems. If you haven't already, please try the following to resolv...