This (F21 or FF22) error occurs if the touch-pad/LED assembly is not able to transmit/receive data to/from the central control unit (CCU).
1. Check the touch-pad/LED assembly by selecting different cycles and changing the modifiers and options available to confirm the touch-pad/LED is responding.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the
touch-pad/LED assembly and Central Control Unit (CCU).
See the full list of codes at:
http://www.servicematters.com/docs/wiring/Tech%20Sheet%20-%208182277.pdf
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