Originally Posted by markmiiler
Inverter acting up. AC back feed alarm and inverter groans and clicks when reset. I have a heavy burnt electronic smell in the cabinet. We presently have a me2012 and plan to install ms2012. The pure sine seems to be the way to go with residential fridge on board. The problem is I see that there are ms2012 15 b, ms201220 20b and the ms2013 100amp. What unit am I needing to replace what I have so I keep the same capacity charger and pass thru capability? The price difference indicates there must be a difference. I have shopped and just want to purchase the correct unit.
a call to magnum will get you all the info. they are very helpful and normally walk you extra miles to get your issues resolved.
since your coach is pretty new, i would recommend a 3012 or 2812 inverter. price wise not too much difference between them. you don't need to change anything but just the inverter and the remote. i replaced my zantrex freedom 20d with a ms2812, diy, couldn't be happier.