Check the listing for details. RV Furnace Ignition Control Circuit Board For Atwood & Dometic 33488 33488 31501. Condition: New. Listed at 28.64 USD. Notice:We maintain high standards of excellenceand strive for 100% customer satisfaction!Please don't open cases or return requests without contacting us.If you have any questions about quality, shipping or other problems, please contact me first via eBay message.I will give you a satisfy solution. High quality replacement control board for Atwood heater, gas furnace igniter unit with Atwood 31501 PCB board.Powered with 12V DC, the board sends signals to open the gas valve and emits a high output voltage that creates an ignition spark to light the burner.Fit for models 7912-II, 7916-II, 7920-II, 8012-II, FA 79D, HF 80D, DC82 25-32, DC82 35-41, FA 76D, FA 78 25-32, FA 72D, 8500-IV Series, 8500-III Series, 85-II Series, 85-I Series,.