CERTAIN DOMETIC TWO-DOOR REFRIGERATORS MANUFACTURED BETWEEN APRIL 1997 AND MAY 2003: SERIAL NOS. 713XXXXX THROUGH 752XXXXX; 801XXXXX THROUGH 852XXXXX; 901XXXXX THROUGH 952XXXXX; 001XXXXX THROUGH 052XXXXX; 101XXXXX THROUGH 152XXXXX; 201XXXXX THROUGH 252XXXXX; 301XXXXX THROUGH 319XXXXX, INSTALLED IN CERTAIN RECREATIONAL VEHICLES AS ORIGINAL EQUIPMENT AND SOLD AS AFTERMARKET EQUIPMENT. A FATIGUE CRACK MAY DEVELOP IN THE BOILER TUBE WHICH MAY RELEASE A SUFFICIENT AMOUNT OF PRESSURIZED COOLANT SOLUTION INTO AN AREA WHERE AN IGNITION SOURCE (GAS FLAME) IS PRESENT.