Fault Codes/Rehlko/CHECK EXER NOT SCHRehlkoCHECK EXER NOT SCHUnclassifiedGeneralWhat This Code MeansExercise Not Scheduled warningPossible Causes•No exercise has been scheduled on the RDC2 controllerSuggested Actions1See Section 2.5 for instructions to set the exerciserRelated Rehlko Fault CodesCHKNGMETERCMCAN COMM FAULT SDCOMMON FAULT SHUTDWNCAN COMM FAULT ARCOMMON WARNGBATTERYCHARGERFAULTCONCHECKINGBATTERYCHARGER FAULTCURRENT A HIGH WARNINGBATTERY VOLTAGE LOW AVDC 2100Browse all Rehlko fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for CHECK EXER NOT SCH on your specific Rehlko unit — cited to the OEM manual, not a forum guess.Your question about CHECK EXER NOT SCHGET THE ANSWERFree account required — we'll bring your question with you.