Hello all,
I recently acquired an Arctic Spa hot tub. I had to replace the motherboard because the main power lugs were broken. No idea how it happened. Mothers handyman disconnected it. No telltale signs of arcing on old board. When I turn power on, nothing happens. I have 240 at board and 120 individually at board. 2 power lines, ground and neutral. I have power at various relays on the board. No power to control panel at all. Swapped with known good panel and still nothing. Control panel disconnected results in nothing. I am a beginner with a multimeter but am pretty good at following directions! I have not checked transformer or heater.I included pics of transformer and a couple of new board and old where you can see power lugs broken out. Any guidance would be much appreciated!