Andrewj

Thanks Coulomb for the link, downloaded and updated the firmware, so far so good. Great, I am very pleased

Bought it about 3 months ago. U2 02 40 U3 00 24

Hi Data, great thanks for the info, will try it today, will let you know what the outcome is. Did check the version current U1 41 14 Also have some more info, after a few cloudy days, it hasnt done it. (Have and external microcare mppt, not using the build in mppt.Bulk charge is set to 60V as my flooded lead acid is nearing the end.) Noticed it seems that when battery bulk charge reached over 58v the fan starts running and then does not turn off again. Maybe the other firmware will work better.

Thanks, there must be something wrong with mine then. It seems to be fine until there is a load that ramps it up, and then for some reason it runs continually. Wonder if it is a firmware problem or a hardware problem? Does anybody have a firmware update for vmiii or know were I can get it?

Hi Coulomb, thanks for your reply, that is correct it is a vm3 not a king. It does seem to ramp up the fan when first the inverter is turned on. It ramps up the fan, then slows down and stops, then in a in about 20-30min it starts again and then runs flat out continuously. Is that normal then?

Hi just installed new vmii king less than a week ago. Excited about the upgrade from the old 4k unit. My problem is the fan runs full speed continuously. If I switch the unit off and on the fan ramps up and stops but in about 30min it is running flat out again. This is with very little load on. This is not normal right? Is there a fix?