Never use chemical solutions of any kind.
Clean filter rinnai gas 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.
The rinnai is typical.
You should visit the heater at least once every three months.
Open the purge port valves by twisting them perpendicular to the position of the cold and hot valves.