Overall, your Bosch washer needs to be put in drum clean mode because it’s due for a routine drum clean, the onboard computer has malfunctioned and you need to restart your Bosch washer. But, there can also be an error code showing on the LCD display, which you can look up in your owner’s manual.
In general, the laundry is out of balance and needs to be adjusted so that it’s evenly distributed. The following are also issues that can cause this to happen, it’s overloaded with heavy items, or too much laundry, your Bosch washer is not level, or the belt or actuator has failed.
As a general rule, the filters where the water supply lines connect to your washer need to be cleaned, the taps that supply water aren’t turned on all the way, or aren’t supplying water, there is a kink in the water supply lines, the door is broken, or the pressure switch is broken.
As a general rule, the drain filter is clogged and needs to be cleared, the drain hose has a kink or a blockage, your Bosch washer needs to be restarted, the drain pump has failed and needs to be replaced, or the drain pump has something like a child’s sock stuck in it.
In general, first check the wall outlet is supplying power. If it is then the internal computer can be faulty and your Bosch washer needs to be restarted, the door switch isn’t closed completely or it’s faulty, the power cord is faulty, or the control board has failed and needs to be replaced.
Overall, your Bosch washer needs to be restarted, The child lock is on, the door mechanism is almost broken and is stuck, the door mechanism has failed, the internal computer is faulty and won’t release the lock, or your washer won’t drain and so the computer won’t allow the door to open.