I have a problem outlet that reads 30V (digital voltmeter) between neutral and ground, 88V between hot and neutral and 120V between hot and ground. The outlet is on a branch circuit; it appears to be the only outlet on the branch. Other branches of the circuit show the normal 120V between hot and neutral. I shut off all the breakers at the panel except the breaker for the problem outlet. The voltage readings do not change. I then shut off the breaker for the problem outlet (all breakers now off) and the outlet now shows zero voltage between all wires. The voltages at the panel appear normal. Also: there is no continuity between ground and neutral at the problem outlet. This would suggest an open neutral, but what would cause the voltage differentials on the neutral wire if it was open? There isn't an obvious back load soure such as an appliance.
I'm going to attempt to find out where the branch ties in, but it's a
1950's split level with pretty inaccessible wiring. I hate older houses... help!-T