Is a Rheem tankless water heater supposed to beep when turned on?
I had a rheem tankless water heater installed Yesterday. It is the model below. It works great. But... each time it comes on there is a small beep. No error codes and it works fine. Maybe it is supposed to do this? Nothing about it in the manual. I have it set at the normal 120. Performance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless