Batt Amps flashing - voltage regulator problem?

Thanks, Maximo.  In the RV-912iS, the Battery and Generator shunts are part of a printed circuit board.  I removed that board and the shunts look okay (nothing burned or broken).  Both shunts have 1-Amp fused leads going to ammeters in the G3X units.  I wasn't able to find those fuses, but I checked the continuity from the generator (or battery) input to the connector going to the G3X, and all those routes had continuity, so I think the shunts are okay.

I did set a larger value for the "zero deadband" for the Batt Amps, but haven't had a chance to run the engine or fly, in order to see if that eliminates a spurious warning when the actual Batt Amps is less than -1 Amp.  Also, next time I can go to the airport, I will check the continuity between the Gen A and Gen B ground plates, as you suggest.

Chris,

I understand.

Take also into account that (If I remember well), G3X-GEA24 does not provide a means to invert the polarity of shunt pins by configuration. Therefore, you will see positive values as long as you connect SHUNT Hi pin to the side where the current is comming in, and SHUNT Lo pin to the side where current is going out. If you want to see inverted polarity values, just interchange these 2 cables.

Maximo,

Chris is seeing a significant positive charge right after starting, so the polarity from the shunt to the Garmin Engine interface module (GEA-24) is correct.