While I was under bed working on a RV bed lift, I found a 110 volt receptical with a plug in it. I have no idea where the cord goes because it disappears into the engine compartment.  Looking under and around the engine itself, I can not find a block heater set up on the C-9 engine.  The outlet is only hot on shore power.  We have a north/south bed (Montclair IV). 
Also we have a CareFree  electrical awning with  wind sensor to retract,  With a hair dryer I can not make it retract in the auto mode, I have read instructions and manuals as well as the forum.  When wind sensor/auto retract is on (I think) the rocker switch indicator light does not light up. Bad switch, bad wiring?  I just don't know.