rstarr
New Member
I've had my Navien for 6 years (almost exactly) with zero problems. This past week we noticed the problem and with this site and troubleshooting I determined the problem is just associated with low water flow. When I turn on multiple faucets or both showers it works fine with high heat. I descale and clean it every year religiously. I have no error codes either. I did replace the Flow Sensor and the problem persists. Another thing to note, whenever I power it off and back on it works fine for about 5 minutes. I welcome any input or guidance.