How to fix error code F01

There are a couple of things you can try to fix the F01 error yourself

• Power reset - Unplug the washer from the outlet for five minutes. This can sometimes clear any temporary glitches in the control board's memory. Plug the washer back in and see if the error code returns.
• Check connections - Sometimes loose or corroded connections between the control board and other parts of the washer can cause an F01 error. If you're comfortable with some disassembly, you can visually inspect the connections for any issues.

Unfortunately, if the power reset and connection check don't fix the problem, then the control board itself is likely damaged and will need to be replaced. Replacing a control board can be a complex repair, and it's recommended to consult a qualified appliance repair person for this task.