RV Repair: water heater wont stay lit, atwood water heater, pilot line

Question
Hi I have an atwood water heater that wont stay lit. When we lite the pilot lite and turn the knob to to on it will stay lit for about five minutes and then the flame goes out even the pilot lite. We recently replaced the pilot assembly Hoping that this would fix the problem but it  hasen't I am at my wits end could you please help me . It would be appriecated.

lauren

Answer
WHEN YOU REPLACED THE PILOT ASSEMBLY DID YOU ALSO GET A NEW THERMOCOUPLE?
THE PROBLEM COULD BE THE GAS VALVE ITSELF. THE PILOT HEATS LIGHTS, THE FLAME SENDS A SIGNAL THROUGH THE THERMOCOUPLE TO THE GAS VALVE TO HOLD THE PILOT LINE GAS SUPPLY OPEN. THEN THE GAS VALVE CAN OPEN WITH THE COMMAND FROM THE THERMOSTAT.
WHAT MODEL WATER HEATER??

THOM