Fault Codes/Rehlko/COMMUNICATIONSFAULTRehlkoCOMMUNICATIONSFAULTUnclassifiedEmissionsWhat This Code MeansFault shutdown; An X in a red circle on UI screenPossible Causes•Network connection or battery power issue to the network bridgeSuggested Actions1Check network connections and battery power to the bridge (generator set engine starting battery)Related Rehlko Fault CodesCOOLANTFAULTDEFAULT PARS WARNINGBATTERYVOLTAGEFAULTEEEEFREQUENCYFAULTNOECSCF0STATUS: LOSTVOLTAGEFAULTCONCHECKFAILCONCHECKINGCOMMON WARNGBrowse all Rehlko fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for COMMUNICATIONSFAULT on your specific Rehlko unit — cited to the OEM manual, not a forum guess.Your question about COMMUNICATIONSFAULTGET THE ANSWERFree account required — we'll bring your question with you.