Assuming you've got everything in the van turned off prior to plugging in, it might be a
shorted power cord, or the extra heavy duty extension cord may be too light or too long
and might be the problem. I bought a used 2002 190P and it looked as though the cord
had been spliced, probably damaged somehow. However, I've had no problems plugging the van
into the outside house receptacle with the 15 A converter plug. The panel breaker is a 15A too.
I've run the OEM heat pump, and the 110V outlets while plugged in to my house.
I only use the cord/plug attached to the van and don't add any additional extension cords, heavy
duty or otherwise. Can you do that, or do you have to use an extension cord to reach?
Is the breaker to your house's outlet at least 15A?
I didn't find too many hits on this site, but here's one from another site with some ideas.
Maybe one will ring a bell for you....
http://en.allexperts.com/q/RV-Repair-83 ... rtor-1.htm