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== == == == You may have a bad hot or a bad neutral, or both. This circuit should be protected by a GFCI and is covered in the NEC Code Book.

In many localities (Towns/States) there are now wiring code requirements for a bath sink light to be GFCI protected.

<><><>

LIFE SAFETY WARNING! [disclaimer]

Electricity is dangerous!

You can be injured or killed!

Improper installations can cause fire, injury and death!

Should you be doing this yourself?)

This is one of those questions - if you know this little, you shouldn't be doing what you are doing...

No disrespect intended, but this is SO basic that it suggests you have not studied the subject at all!

There are many good reference books and course books to study from.

Troubleshooting is the height of the art.

The only reason there is "not enough voltage" somewhere is because there is a

partially open connection providing resistance and a location to allow a voltage drop [bad splice, bad switch, bad breaker, broken wire, burned splice, ...].

It is the knowledge of how electricity works, and of the methods and materials used to create a functional wiring system, that enables a skilled troubleshooter to locate the problem and repair it.

Where should the "voltage" be, and how does it get there?

When you understand that, you will understand what is keeping it from getting where it should be...

Happy hunting! <><><>

As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

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โˆ™ 2009-07-21 21:11:40
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Q: Why is there only 40 to 50V across the hot and neutral wires in the 3-wire cable supplying a wall-mounted bathroom light fixture when the old fixture worked fine and all connections are tight?
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