You should visit the heater at least once every three months.
Clean filter rinnai gas heater.
How to clean rinnai inlet screen.
Know that a tankless water is not a set it and forget it water heater.
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.
5 steps to cleaning your rinnai tankless water heater filter learn best practices on cleaning your filter from our youtube video learn more.
Never use chemical solutions of any kind.