Rheem Tankless Water Heater Error Code 13- How to fix?

Did your Rheem tankless water heater display an error code 13, leaving you in a cold shower? Don’t fret! Many homeowners experience this, and you’ll be relieved to know there are actionable steps you can take to rectify the issue. In this article, we will unpack the meaning of the Rheem tankless water heater error…