I am working on my swim spa. It runs on 230 volts. I have ground, white (neutral) black (hot) and red (hot). At the circuit board for the pumps, etc. without any power, I am using a ohm meter. White to ground has continuity, as it should. Red to ground or white has no continuity as I expect. Black to white has continuity which seems wrong to me. I tested a few things around the house with power cords and found that testing each male plug shows continuity. Now I know if power is on it should read 230 volts or so on red to black. Red to white should be 115. And black to white should be 115 also. I have 2 identical circuit boards and they both test the same. I am afraid to apply power at this point. I play electrician but am not an expert. Any help appreciated.