Electrical – All outlets but one work in bedroom

electricalreceptaclewiring

To preface my question: I’m not too familiar with electrical and am planning to most likely have an electrician come take a look at my house.

My upstairs bedroom and guest bedroom are both running on the same circuit on my breaker. All outlets and lights work fine in my guest room. Lights in my bedroom work fine. There are 5 outlets in my bedroom and the one I would say is “first” or closest to the door is the only one that works.

They other four stopped working and I have no idea why. I attempted my best efforts to kill the main breaker and I took each outlet apart and examined the wiring(after making sure they weren’t hot of course) and I couldn’t find anything in particular to be wrong. I have no outlets that are turned on via a switch either so I couldn’t find any issues there. I haven’t checked the guest bedroom yet.

Anyone have any suggestions of where I could possibly take a look?

Best Answer

Typical method of connecting outlets on the same circuit in a chain:

Daisy-chain SWBC

This is the main reason outlets are made with four terminals instead of two. (I bet you thought it was so the outlet could be split between two circuits by removing the tabs.)

Suppose you find that outlets 3 and 4 have stopped working, while 1 and 2 still have power. The failure is almost certainly at one of the terminals A, B, C, or D -- in other words, at the last live outlet in the chain or at the first dead one.

This is a very common failure in home wiring when the builder has used the backstab terminals on the outlets instead of the screw terminals. The only excuse for ever using the backstab terminals is that your cheapass boss will fire you if you take the time to wire it right.

Many professional electricians recommend wiring outlets like this:

Pigtailed SWBC

Those hookup wires from the terminal screws to the wire nuts are called "pigtails". They should be about 6" long.

Wire nuts are certainly more reliable than backstabs. There is some disagreement over whether wire nuts are more reliable than screw terminals. The pigtails may be a bit of overkill but they allow removal of a problematic outlet without affecting the rest of the circuit.