[snowman]

You will not get a hot/ground crossed indication for an open neutral. The device is measuring a voltage between the neutral and ground and there should never be any voltage between these points, period, even with an open neutral. Your wiring is fked up.

Using an ac voltmeter, check the voltage between a water pipe and the ground (middle) connection. There should not be any voltage, zero, if you do have a voltage, you have a serious problem. Next, if there is no voltage between the ground and the water pipe, check the ohms between the water pipe and the ground connection. You must get a very low number, like almost the same as just connecting the leads togather. Zero ohms is ideal, less than 10 ohms for sure. If you do not pass these 2 tests your wiring is downright dangerous and must be fixed. If you pass these tests, you can have confidence that your indicator is telling you the truth, go by it. Hot/ground crossed is very dangerous.

Black is the color for DEATH, ie the HOT wire, you should have 120v between it and the ground or the neutral. White is safe and you should not have any voltage between it and the ground. Don't understand this, get an electrician or you will hurt yourself. I chose not to tell you which prong, the long or short is hot, go by your indicator. Just covering my butt in case you screw it up. Life can be short if you screw up.

I just re read your first post. Your wiring is backward and dangerous. Whoever did this, screwed up, big time.

Green is GROUND
White is Neutral
Black is HOT

Never any voltage from green to white, period.
Always 120v from green to black OR white to black.

Someone said forget going after the builder, maybe, but whoever re wired your house should be in the hot seat, no matter how long ago you bought it. They certainly did NOT have it inspected, they certainly did NOT do it to code.

CurtEgerer, you seem to know what your talking about, give your opinion again, after re reading just what was said in the original post. I think someone screwed up, big time and should be on the hook to fix it. They knew there was a problem, they did not know how to fix it, and they screwed it up trying to fix it. They made a bad problem, a very dangerous problem.