I can definitely help you with the E27 error code on Bosch washing machines. This code typically indicates a door lock issue, where the machine detects that the door is not properly closed and locked. 

This is a safety feature to prevent leaks and potential damage.

These error codes all share a common cause: a problem with the motor.

The F20 error code generally signifies unexpected heating during a non-heating cycle, like the rinse cycle. This unexpected temperature rise can be caused by several reasons

The F19 error code on Bosch Washing Machines indicates a heating time exceeded issue. This means the machine is unable to reach the desired water temperature within the expected timeframe during a wash cycle.

The F18 error code on Bosch washing machines indicates a problem with the drain pump. This means the pump is unable to drain the water from the machine efficiently during the wash cycle.

The F17 error code on Bosch washing machines typically indicates a water intake issue. This means the machine is taking longer than expected to fill with water.

The F16 error code on Bosch washing machines typically indicates a door issue, meaning the machine detects that the door is not properly closed and locked. This is a safety feature to prevent leaks and potential damage.

Unfortunately, the F15 error code on Bosch washing machines doesn't have a single universal meaning across all models. Its interpretation can vary depending on the specific machine you have.

The F14 error code on Bosch washing machines typically indicates a mains voltage problem. This means the machine is detecting an abnormality in the electrical power it's receiving.

Unfortunately, the F13 error code on Bosch washing machines can have different meanings depending on the specific model you have