Fault Codes/Rehlko/BATTERY VOLTAGE HIGH WRehlkoBATTERY VOLTAGE HIGH WUnclassifiedElectricalWhat This Code MeansEngine starting battery voltage rises above 16 VDC for more than 10 secondsPossible Causes•Incorrect battery rating or poor battery condition•Faulty battery charger operationSuggested Actions1Check the battery rating and condition2Check the battery charger operationRelated Rehlko Fault CodesBATTERY VOLTAGE LOW WBUSDEADLIVEBATTERY HIGHCFGMODELNUMBATTERY CRLOCFGSYSVOLTAGS-10CHECK AC SENS LOSSADC-RESCONCHECKFAILAC SENS LOSSCONNOTDETERMBrowse all Rehlko fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for BATTERY VOLTAGE HIGH W on your specific Rehlko unit — cited to the OEM manual, not a forum guess.TRY IT FREE