Freezer Frame-Drain Heater (561)
          Use From Serial #M965470 to #M965869 and
          From Serial #1004775 to #1810000.
          Prior to #M/P1004775, except between
          Serial #M965470 to #M965869 see 4201060.
          If just the drain pan & pan heater are
          needed see 4201000