The
outboard isn't the problem.
I looked on Ebay. I found the "
Wagan Tech high efficient model #20072" and the "Power Express". The
Power Express is advertised as
"This inverter is made from the same factory as the Coleman brand". It's only $195 US and comes with a wireless
remote control. Maybe to change channels?
I buy a lot on Ebay but I stay away from any mystery brands. The risk of getting junk is just too high.
A
refrigerator is very tough on an inverter. The
motor has a heavy surge when it starts and it runs many hours a day.
Switching to a pure sine unit is not necessarily the right solution. If the fridge ran fine on the modified sine it won't be better off on pure sine. It would be a much better idea to get a very high quality modified sine unit than try to go with a
cheap pure sine unit.
Carl