The FAN 50 Plus is designed to replace the Suburban 520820 board, the new Suburban® # 232613 board and the Atwood® / HydroFlame® 37857 board, as well as the Dinosaur Fan Control boards which have been available since the middle of 1994. Reduce battery drain and needless cold drafts.
If the board fails to sense a flame after the third ignition try, the fan motor turns off. One hour later the board will automatically repeat the whole sequence again before permanent shut down. Exclusively for 12 VDC Furnaces.