d to reset the appliance to clear the code.
Turn the knob to off.
Turn the knob to 6 o'clock.
Press and hold the spin button.
While holding it, turn to 7 o'clock.
Release the button.
Turn to off.
Read more: Hello Washing machine WAE28363GB/02 Fault F 21 Action - JustAnswer http://www.justanswer.com/uk-appliance/41hqx-hello-washing-machine-wae28363gb-02-fault-f-21-action.html#ixzz29emDiBZR
r sharpe, October 2012