R Series Service Manual9650-0903-01 Rev. L 2-1Chapter 2TroubleshootingOverviewThis chapter contains a list of error messages that users may see if the unit is not operating properly.If the problems you encounter are not listed below, call ZOLL Medical Corporation’s Technical Service Department for further assistance. (See page iii forcontact information.)ZOLL R Series Error MessagesThe following is a list of ZOLL R Series error messages that may appear on your display. The “User Advisory” column informs you about an action inprogress or provides feedback on a user correctable situation that typically does not require further technical support. The “Technical Action” columndescribes what you as a technician can do to correct the situation. Note that these messages will sometimes overlap part of the waveform display.First, attempt to clear the message by turning the Selector Switch to OFF for ten seconds, then back to the desired operating mode. If the fault persists, callZOLL Technical Service.Error Message Explanation UserAdvisory Technical Action200J MAX BIPHASIC User attempted to set defibrillation energy >200J onBiphasic Unit. No higher energy is available. 30 J TEST OK Unit successfully passed the 30J defib self-test.50 J MAX Energy < 50J for internal paddles. No higher energy isavailable.