TROUBLESHOOTING/ Monitor Unit Resetting Data If data is reset, push key 5 on the Interval ON/OFF setup screen. The message "Reset Data. OK?" appears. Then, push the confirm key. The value of remaining hours is reset to that of change interval. The previous change date/hour is updated with current date and time. Key 5 T1V5-05-01-052 Interval ON/OFF Setup Screen T1V5-05-01-140 Confirm Key T5-2-59