Some users get confused when they see h01 (h: 01) or h02 (h: 02) and other messages. These are not errors. These messages occur after an accidental activation of the start-up timer menu (delayed start). For example, h01 means that the cycle is set to start in 1 hour; if there is h02, the dishwasher will be launched in 2 hours. In most Bosch dishwashers, the maximum delayed start can is 1 to 24 hours.