Why does my slushy machine keep counting down?

Why does my slushy machine keep counting down?

The countdown of two minutes indicates that the compressor only needs to work for two minutes before it reaches the desired firmness setting.you can adjust the thickness by press A/B button.Press A/B/C button can change viscosity/thickness setting for each bowl .Viscosity level from 1-10,level 1 is softest and level 10 is hardest.Factory default level 4 For example,change A bowl viscosity: Press A button ,screen show means A bowl viscosity level is 5.press A button again can adjust this number from 1-10,after adjust wait 3 seconds can save the setting automatically.