Answer Hello Ted. The f33 code is: When the connection between pump and the Central Control Unit (CCU) is lost. 1. Unplug washer or disconnect power. 2. Check wire harness connections to the pump and Central Control Unit (CCU). 3. Plug in washer or reconnect power. 4 Replace the drain pump assembly. 5. Replace the CCU. Hope this helps. Read More... Answered by AppliancePartsPros.com | Monday, January 2, 2012