PSt  or  PERSIST FAIL  Message

The "Persistent" (PSt) Memory Cannot be Read.

At Power-Up, part or all of the System Board Persistent Memory could Not be Read.  The Persistent Memory Retains all of the Programming Information, such as Filter Cycles, Set Temp, User Settings and Configuration Settings, and does not require any  form of Power or Battery for Retention. This indicates a Possible Problem with the System Board.  Try Turning the Power OFF and back ON again, or Continue for a Detailed Test Procedure.

Note: It's Common to see this Message the First Time you Reset the System after Programming it with an ESM (Elite Service Module).