Replaces Dometic part number 3850712.01. Built in ignitor. 2-way or 3-way operation. Fuse protected. Variable temperature adjustment for fixed "automatic" temp refrigerators. The "check" light comes on after each ignition try fails to sense a flame. Repeats the 3 try ignition cycle at 30 minute intervals if no flame is sensed. In 3-way models, the DC element will drop out and the DC mode light will flash If the voltage level falls too low for more than 10 seconds.