Control Board - CT30E SVCE
    NOTE: PRIOR TO SERIAL NUMBER 11226017 ALSO
          ORDER 807071 RELAY BOARD
          Use Prior to Serial #17000000, And Also
          Between Serial Breaks Below.
          #17003483 to #17003485
          #17021561 to #17021592
          #17021838 to #17021869
          #17022171 to #17022202
          #17022408 to #17022439
          #17037535 to #17037576
          Starting With #17000000 See 811769