Know that a tankless water is not a set it and forget it water heater.
Clean filter rinnai gas heater.
Never use chemical solutions of any kind.
Open the purge port valves by twisting them perpendicular to the position of the cold and hot valves.
5 steps to cleaning your rinnai tankless water heater filter learn best practices on cleaning your filter from our youtube video learn more.
How to clean rinnai inlet screen.
My rinnai energysaver 556wt is flashing filter on the panel in red we always keep this clean but i took it out to answered by a verified hvac technician we use cookies to give you the best possible experience on our website.