Reference attached photo of my FlagStaff 832-IKBS. Has control for both "tank heaters and something control for "OSD."" I don't have any idea what the OSD FLOORS is. Can anyone tell me what that control does. When I turn them on I hear a buzzing noise like maybe something running coming from the converter/inverter. It's suppose to get down to 26 degrees tonight and we just got back rom Florida so want to re-winterze for just one night.
Yep... I think in the 3rd pic (or maybe the 2nd), it says ODS Flood... which I believe to be Outside Driver Side Flood light(s). If it/they is/are fairly bright, they draw enough 12v battery power that the converter (and its cooling fan) comes on to recharge the electricity loss.