Bosch Wvf 2402 User Manual -

A: The WVF 2402 uses an "Eco Economy" logic. If you select a low temperature (20-40°C) and the water is cold from the tap, the machine extends the wash time to achieve the same cleaning result. This is normal.

The digital display on the WVF 2402 is simple but informative. Here is what the symbols mean according to the manual: Bosch Wvf 2402 User Manual

Here are some additional tips and advice to get the most out of your Bosch Wvf 2402: A: The WVF 2402 uses an "Eco Economy" logic