Thanks for all the help. even though my model number indicates electric screw in element there is no place for it inside rv. Tore it all apart. It does however have the hott rodd kit installed in the drain hole on the lower left side of the heater outside. traced the 110v wires, disconnected them and ohmed the element out and it is bad.
did i understand that you can drain the water heater from outside the moho? that would be great and make it easier to flush the heater before you install a new element. crud in the bottom of the atwood could have caused the element to fail.
there is a small diameter hose you can purchase at rv stores that goes in the water heater drain hole and allows you flush the heater.
since you have it all apart, now would be a good time to replace the tp valve.
if you cannot drain the water heater from outside your moho, it is going to be a messy job flushing it.