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johnmorris68

05:55PM | 08/21/07
Member Since: 08/20/07
2 lifetime posts
Bvelectrical
I have a pool filter about 100 feet from my home. My problem is that my electrical feed to the motor seems to be doing something wierd. I put a volt meter on the neutral and the load, and got no reading. But when i put the meter on the neutral and the GROUND I got a 120 volt reading, as well as the Load and the ground I got a 120 volt reading.. How and why could this happen. Also If I wanted to check for continuity, how could I do it over such a long distance? Any help would be GREATLY apprecited.

Billhart

06:49PM | 08/21/07
Member Since: 04/25/05
1915 lifetime posts
Most likely the neutral is open.

And are reading 120 from neutral to ground because the motor load is connected from the hot to neutral and the motor is ON.

Try turning off/disconnecting the motor load making that mesasurement again.

If you have a digital voltmeter you will most like read a phanton voltage of 20 to 100 volts.

johnmorris68

05:38AM | 08/22/07
Member Since: 08/20/07
2 lifetime posts
When I tested the voltage, it was directly from the outlet. The motor and the light were not connected.

Billhart

07:14AM | 08/22/07
Member Since: 04/25/05
1915 lifetime posts
Disconnect the wiring at both ends.

Then at one end connect two of the 3 wires together. Then check at the other end for continuity.

Repeat for the other two combination.

Also with all 3 wires open check for resistance between each pair of wires. Best if doen with a meggar (basically an ohmmeter test done with high voltage), but you probably don't have acess to one.

joed

10:58AM | 08/27/07
Member Since: 09/17/02
524 lifetime posts
You have an open neutral wire somewhere on the circuit. Look for an open connection somewhere.
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