I purchased my H340 about 18 months ago and after I purchased it, the inverter display started reading E06 error. It seems to indicate that there is some sort of output overload. The strange thing is that nothing is on and it still reads that error. About 10 months later, after doing nothing, I tried it again, and it worked fine. Now, all of a sudden, I seem to be getting the same error. Still, nothing is on that would use the inverter and I cannot, for the life of me, figure out why there would be an output overload when there is no output. I have a Xantrax Freedom FX1800. Anyone familiar with this inverter or this issue? Thanks in advance.