Fault Codes/Discovery Energy, LLC (Rehlko)/P1562Discovery Energy, LLC (Rehlko)P1562ErrorFuelWhat This Code MeansInjector Return Voltage HighRelated Discovery Energy, LLC (Rehlko) Fault CodesP1633P2112P1522P2163P1521P2164P1520P2172P1134P2173P0224P2174Browse all Discovery Energy, LLC (Rehlko) fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for P1562 on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.Your question about P1562GET THE ANSWERFree account required — we'll bring your question with you.