e04de9a7_cess_ATM___Hyosung_Error_Codes__Resolution
[Code] 20002 [Description] Low Cash [Resolution] 
Low cash warning sensor on dispenser is open. When “Low Cash Warning” is enabled in the Transaction Setup menu, this sensor will open when the cassette reaches (+/-) 75 bills. If this machine is typically stocked with a low amount of bills, we recommend disabling this function.
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