I searched out this forum due to strong sulfer smell in the coach.
I had drained my hot water heater last night in preparation for cold weather. I was just sure that the sulfer smell was due to that.
Read the last post about checking the batteries. Low and behold that is where my smell is coming from. Had never had a problem with that before. Very warm in the battery compartment and some moisture seen too.
Coincidentally I had just had my dealer install a cutoff switch to my coach battery... had never had a converter problem like that before.
I will be calling my dealer back but any suggestions in the meantime? I certainly have unplugged the RV power cord from the house.