What does the F20 error code mean and how do I fix it?

The F20 error code indicates a water inlet problem, meaning there is no water or insufficient water supply reaching the washer. To resolve it, select PAUSE/CANCEL twice, unplug the washer, and check that water faucets are fully turned on, inlet hose screens are not clogged, and hoses are not kinked or frozen. Plug the washer back in, re-select the cycle, and press START; if the problem remains, call for service.