Rheem RTG-66DVN Direct Vent Natural Gas "error code 13" Questions

Error code C4 13 is bad oxygen sensor, inadequate incoming air supply, or bad venting. Also bad PC board, or internal wiring, or temperature set too high, damaged burner parts. http://waterheatertimer

...error code . jim B. Before calling service technician, open following links for troubleshooting resources including Rheem chat and typical manuals: http://waterheatertimer.org/pdf/Error-code-13.pdf ...

error code 13 mean? 1) Copy following links for Rheem tankless error codes http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html http://waterheatertimer.org/pdf/Tankless-Error-code

error code c4/13 what does this mean 4 error message, the 4th (last) error code is #13, not enough oxygen. Check the location of the heater, if it is fine the ODS sensor (actually is a thermal couple)

...error code c8 I think error code C8 is #13 Check following links to see if they have information: Check following link for recall list: http://www.tankless-recall.com/tanklessSearch.aspx Manual shows ...

...Error code c4 - 13 (alternating). Then I have to reset th unit: turn off & on via the remote and the error code goes away until the next time we use the unity. I called Rheem but they couldn't ...

...heater with error code c4 13 rheem gas tankless water heater error code c4 13- how do i fix problem is inside burner compartment o2 sensor dirty or block..need to have a qualify technician clean

error code 11. Rheem sent me three new flame rods and a new controller board. after cleaning unit and replacing parts, it is getting error code 13 after approx 2 minutes of running. the unit is only 8

...error code on my tankless Internet doesn't have clear-cut solution for C7 13 error code. If concise repair information or service bulletin comes available, I will update this thread. Open ...

...code issue and then today, the display flashes -0, 13..... The all air vents are clean and clear. Multiple error codes can mean different things, including bad PC board. C2 13 might be the oxygen ...