The lights in my bathroom are not coming on I am getting 120 volts from the Breaker but only 4 volts at the switch I have changed out the switch and still no luck as Far as my knowledge the bathroom lights are the only thing on that circuit does anyone have any advice on what I should check next

 

How are you measuring the voltage at the switch? Against what?

 

How are you measuring the voltage at the switch? Against what?

Buy putting the Multimeter on the hot and neutral.

 

I think you have two choices:

1. Adapt to using the room in minimal lighting conditions.
2. Learn enough about how your house is actually wired to properly diagnose and fix the problem.

 

The lights in my bathroom are not coming on I am getting 120 volts from the Breaker but only 4 volts at the switch I have changed out the switch and still no luck as Far as my knowledge the bathroom lights are the only thing on that circuit does anyone have any advice on what I should check next

First thing: describe the type of light in the bathroom.
Have you tested the bulbs at another location?
How do you know that you are measuring at the correct breaker?

 

Buy putting the Multimeter on the hot and neutral.

Do you have a ground wire on the switch?
If so read the voltage from hot to ground.
If the reading is 120 then the neutral is open. Otherwise the hot to the switch must be open

 

Inspect the wiring at any other switches or outlets on the same circuit by opening the boxes and checking connections. Sounds like a failed through-connection between the dead switch and the breaker. Be careful and turn the breaker off when looking around.

 

I think you have two choices:

1. Adapt to using the room in minimal lighting conditions.
2. Learn enough about how your house is actually wired to properly diagnose and fix the problem.

Yea the reason I'm on hear is to get help on learning what I should check next so I don't have to use the room with no lights but thanks for the advice

 

Do you have a ground wire on the switch?
If so read the voltage from hot to ground.
If the reading is 120 then the neutral is open. Otherwise the hot to the switch must be open

No there are no ground wires to the switch

 

Is this an older house?

 

Check the neutral connection in the cable associated with the breaker at the panel.

 

The hot line may be jumped from another light+switch elsewhere and the junction there could have failed.

Failure is almost certainly at a junction or splice in the circuit between the breaker and the switch.

Tripping the breaker off and seeing which lights no longer work should show you where to investigate.

 

Do you have a ground wire on the switch?
If so read the voltage from hot to ground.
If the reading is 120 then the neutral is open. Otherwise the hot to the switch must be open

Is this an older house?
[/QUOT

Is this an older house?

Built-in 1984.

 

Built-in 1984.

No bare copper ground wire in the cable either?

 

First thing: describe the type of light in the bathroom.
Have you tested the bulbs at another location?
How do you know that you are measuring at the correct breaker?

Yes I have changed the bulbs,and I know it's the right breaker because when I turn it off I get no power at all

 

Are you sure it's the correct breaker for the bathroom lights? If the wiring is the problem how would you know which breaker to check unless its correctly labeled or nothing else in the house is affected when that breaker is Off.

 

There are no ground wires going to the switch they are twisted together inside the box I just test fron hot to ground and in getting 120 volts but hot to neutral I'm getting 4 volts

 

OK then you have an open neutral. Check the neutral connection in the breaker panel. Do you know how to do that?

 

OK then you have an open neutral. Check the neutral connection in the breaker panel. Do you know how to do that?

I'm assuming to look for loose neutral wire

 

Yes, on the common neutral bus bar. Possibly a loose connection on the screw terminal