Dinosaur Electronics Replacement 3850415.01Dinosaur Electronics 3850415. 01 Replacement * Use the 3850415. 01 to replace Dometic's 3850415 xxx Black Box Board 2 way or 3 way operation. Fuse protected. Variable Temperature adjustment for those FIXED TEMP refrigerators. The CHECK light comes on after each ignition to sense a flame. Repeats the 3 try ignition cycle at 30 minute intervals if no flame is sensed. DC element will drop out and the DC mode light will flash in 3 ways if the voltage