I have a small bar type fridge that shows 120VAC and .8A operating load. I hooked up a watt meter inline with household current and start up is about 270 watts then down to 75 watts after about 15 seconds and stays at that load while running. When I plugged it into a pure sine wave inverter (300 watts with 600 surge) it trips the inverter about 2 times then resets and starts the fridge motor but the load on the watt meter stays in the 255 range for about 2 minutes then trips the inverter again. Any ideas as to what's happening here? Do I need a larger inverter? I previously tried it with a modified sine wave inverter of about the same capacity but it would not start up at all -- thus I went to a pure sine inverter.