Fault Codes/Discovery Energy, LLC (Rehlko)/P0563Discovery Energy, LLC (Rehlko)P0563WarningGeneralWhat This Code MeansP0563Possible Causes•Problem with charging system•Problem with charging system or battery not maintaining a nominal system voltageSuggested Actions1Check the battery and the battery charging alternator for proper operation.2Replace the battery and alternator if needed. Refer to the Engine Service Manual.Related Discovery Energy, LLC (Rehlko) Fault CodesP0603P0604P0509P0605P0508P0606P0335P0638P0172P0642P0171P0643Browse all Discovery Energy, LLC (Rehlko) fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for P0563 on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.Your question about P0563GET THE ANSWERFree account required — we'll bring your question with you.