The rinnai is typical.
Clean filter rinnai gas heater.
Never use chemical solutions of any kind.
Use 4 gallons 15 1 liters of undiluted white vinegar to clean your tankless water heater.
You should visit the heater at least once every three months.
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.