Rheem RTG-74PVN-2 Natural Gas Pronto Whole House, Natural Gas, Tankless Wat "pronto error codes c4" Questions

...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 ...

...Pronto RTG-74 error code C4 We have a Rheem Pronto RTG-74. It was installed about 2 years ago. No problems before now. A few minutes into showers, hot water disappears and thermostat reads error C4 / ...

error code c4 13 C4 13 is probably PC board failure.Call Rheem and they will send new PC board.Or it could be sensor failure, or other cause, but generally PC board.Imagine if your computer needed a ...

...pronto after ten sec. Of running it flashes error code c4 -76. Need help. Need new PC board probably.And/or the required yearly general maintenance.Unknown if this is new installation, or if parts ...

...error code of c4 76. Called Paloma and they shipped a new motherboard to me after saying the controller and motherboard weren't communicating. Have installed new motherboard per provided instructions ...

error codes displayed c7 76. I turn of unit and restart and it runs ok for a while then shuts off for no real reason. Only other appliance running would be the furnace, this usually happens every fall

Pronto model#RTG-74PNV-1 has powered off for some reason unknown, I turned the unit back on and it supplied hot water for approx. 10 minutes before it started flashing a code [C7]on the remote control

...C4-C8 portion of the error code, is where the unit stops the ignition process...burner fails to light, or gives you intermittent hot water. In either case, contact customer support. If this helps, ...

...error code C4 13. It is very well ventilated, nothing in front or on the sides. I am at 7000 feet but without a high-altitude chip. Could this possibly be the problem? Yes and because it wasn't ...

...error codes and typical manuals. http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html C7 76 is problem with remote control. Following link might ...