I recently completed my RV system. Every thing worked fine but about 2 weeks after start up my Cerbo GX failed, No lights were on and the GX no longer showed up in the list of components using the App on my phone. I have the power cord attached directly to one of the battle born batteries. I checked the fuse and it's good. I checked the power at the black connector and there is 12 Volts going into the unit. My supplier replaced it with a new unit and all was good after hooking the new unit up, but hat lasted less than 24 hours and the new unit was dead. I have been at a loss as to what is wrong.
I do have a smart shunt in the system and in a previous question Seb71 commented that nothing should be connected to the battery Negative if you are using a Smart shunt. Could my failures be due to directly attaching to the battery?
If this is the case where should I attach the negative for the GX, and have I burned up two units at this point?
Thank you in advance to anyone that can help.