Navien Flow Sensor Repair and Fix

Posted on Dec 9, 2019 | 4 comments

This problem typically starts with an ERROR 001, ERROR 038, or ERROR 039, but your Navien could show a number of other errors caused by the faulty flow sensor. We will discuss further below. First thing, if you need hot water immediately, try unplugging the system wait 30 seconds, plug it back in.  This resets your tankless and may give you hot water again for a quick shower or temporary use.  Don’t forget though, this...