I bought the 24 VAC 8000 watt power jack based on Oztules' post. I am off grid. I ave been using square wave inverters for years due to cost, but found out the square wave was burning out my refrigerators, got a bunch of dead ones I use for storage now. So when I saw your review on te Power Jack, I got one, as we had been struggling with a Harbor Freight square wave 6000 watt inverter that never gave us the power it said. Haven't been able to run my deep well pump for years, not since the AIMS, which was square wave, but at least ran the well pump for 4 hours a day if we wanted. (We store water in a 350 gallon tank and must pump for garden and automatic gravity waterers for livestock. )But I couldn't get my husband to help me fix the huge hole in te pumphoouse roof, and it rained, burning out the AIMS and throwing us back into primitive living for YEARS. Wasting money on gasoline for generator and noise.
Anyway, the Power jack I got only has one big torroid in it, and I think they learned from the windings on the magnet as a choke when I went to put mine in, (made from Oztules' instructions, ) they had placed a small one in there, just where he said to, only smaller than his (and mine) and on a small torroid magnet, not an E like I had made (like Oztules had) so I thought, well, nice! The wires they use are about 10 AWG while mine was 4 AWG (the one I didn't use) And it worked nice for three days. We have 10 deep cycle 12 volt batteries, wired in series to 24 volt, I have 1400 watts solar going in and 2 Outback controllers, which we adjusted to 24 volt system, There are 4 battery terminals which confused me for awhile until it looked like i only needed to hook up two. The one thing I don't like about it is the LED screen is easy to read when I first turn it on, but the backlight goes out in a minute and ten I can't see a thing as to what watts and amps and volts are going on!!. While it is on, it does appear that watts stay about 45 at idle. So that's good. I was able to run the pump AND cook on the griddle at the same time about noon, good sun. So I was pleased with that. I tested it on the small fridge (235 startup- and 104 watts working power according to the killowatt meter- and I plan to glue 2" insulation all around the outside except the area were the condenser is, and this keeps it cooler longer. Uses less power. ) and the fridge worked fine.
But it acted weird today. It pulls my water pump fine- 1400 start and 1200 continuous, and it will run it for hours as long as the sun is out and sky is clear. But when i turn the pump off, the small load from the laptops and LED lights are no longer seeming to keep it on, it does the blinking thing. Irritating, as I have a lot of low power stuff I need on. It was fine for a few nights there. Don't know what I did wrong. I fiddled with the inputs and the plugs and tried to see if something was unplugged, but no, then I plugged in te fridge and that got it working again- it seems it liked higher power even a few hundred watts, rather than lower power. I thought it had fixed itself until I unplugged the fridge to move it inside and the inverter went all screwy again. Back on generator at night until I get this troubleshot. Any ideas?