Fault Codes/Onan/SDC BAR 00-0ACOnanSDC BAR 00-0ACUnclassifiedGeneralWhat This Code MeansEngine unstable (hunts) (Genset)Possible Causes•Fuel lines leakage•Loose wire connection•Governor linkage bindingSuggested Actions1Check fuel supply2Check fuel lines for leakage3Check for loose wire connection4Check governor linkage for binding5Check governor adjustments6Check carburetor adjustmentsRelated Onan Fault CodesSDC BAR 00-033SDC BAR 00 − 042SDC BAR 00 − 0AGSDC BAR 00 − 0ADF6424137300-04500-04200-0BTBrowse all Onan fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for SDC BAR 00-0AC on your specific Onan unit — cited to the OEM manual, not a forum guess.TRY IT FREE