Fault Codes/Discovery Energy, LLC (Rehlko)/FAIL TO ACQUIRE PREFDiscovery Energy, LLC (Rehlko)FAIL TO ACQUIRE PREFUnclassifiedGeneralWhat This Code MeansPreferred source fail to acquirePossible Causes•Preferred source not within acceptable voltage or frequency rangeRelated Discovery Energy, LLC (Rehlko) Fault CodesFAIL TO ACQUIRE STBYFAILURE TO ACQUIRE PREFERREDEXTERNAL FAULTFAILURE TO ACQUIRE STANDBYENGINE STAFILE CONTENTS ARE FOR A DIFFERENT CONTROLLEREMERGENCY STOPGROUND FAULTE3I/O MODULE LOST COMME0IPM SYNCHING (IN - PHASE MONITOR SYNCHING)Browse all Discovery Energy, LLC (Rehlko) fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for FAIL TO ACQUIRE PREF on your specific Discovery Energy, LLC (Rehlko) unit — cited to the OEM manual, not a forum guess.Your question about FAIL TO ACQUIRE PREFGET THE ANSWERFree account required — we'll bring your question with you.