1.This money counter can only count number of bills, but not recognizing denomination or calculating the total amount. 2.If you need to count different bill, please dont put them in same counting time, the machine can only count numbers of same bills; 3.Counterfeit/ Broken/ Magnetic stripe of the bills on different sites/ Bill width abnormal will all show error codes on the display, please use the instructions to confirm the exact problem; 4.Error Message Display,80Percent of all the operational problems may be caused by the dust and dirt inside the machine, please keep the machine clean all time (E01, E02, E03, E04, E05 error code shown for cleaning dirty needed) ?6 Modes Gives You More Choice? COUNT: to count the bills ADD: to count the bills in adding BATCH: BAT indicator lights on, the machine is into batch counting mode. Batch number by pressing 0/1/2/3/4/5/6/7/8/9 RESET: to zero and restart AUTO: the default mode is AUTO CLEAR: to clear the batch set ?Product Specification? Dimension:12.8 x 10.4 x 6.3 Inch Weight:15.4 Pound Power source:110V±10Percent?60Hz?75W Noise:<60dB Ambient Temperature: 0 ~104 °F Counting Range: 1~9999 Preset Range: 1~100 Banknote Size: Long: 4.3 ~7.5 Inch; Wide: 2~3.5 Inch; Thick: 0.003 ~ 0.006 Inch We committed: Due to this special time, we may meet different problems each day, if anything we can help or need your help, just share your little time for message checking sending without hesitation; our aims is to make every customer save time and earn more happiness with our product