Kenmore Washer Error Code 21

[app1]

Working on a Kenmore Washer Model # 110.47512600 and it will NOT pump the water out and it has an error code 21. What is this code and how difficult to fix. Thanks for any help!
Bob

[AJ]

I have attached a copy of the tech sheet.


F/21  LONG DRAIN   


 
 Possible Causes/Procedure
 

• Check the drain hose and make sure it is not plugged or kinked.
    Unplug washer or disconnect power.
    Check the electrical connections at the pump and make sure the pump is running.
    Check the drain pump filter for foreign objects.
    Plug in washer or reconnect power.
    If the above does not correct the problem, go to step 7.
    Unplug washer or disconnect power.
    Replace the pump.