Does anyone know what FLT is for in the cabinet where all the lighting switches are? Does it have something to do with the water heater or the water pump. It sits between both switches. I have a 2015 CC 28 RD.
It's your DSI (Direct Spark Ignitor) fault light. If the DSI fails to light the propane, this light will stay on after three cycles of trying to light.
It can also come on initially when you turn the DSI switch on until the propane ignites.