Toshiba DW-08T1CIS-UA Instruction Manual page 13

5 Warning
indicator
Display
6
12
If the " " indicator is lit, it means the dishwasher is low on
dishwasher rinse aid and requires a refill.
If the " " indicator is lit, it means the dishwasher is low on
dishwasher salt and requires a refill.
To show the remaining time and delay time, error codes etc.