I plugged my laptop into an outlet, but it showed a warning that it couldn't confirm the voltage, so it wouldn't charge. I checked the outlet with a receptacle tester and found that it's not grounding properly. After turning off the breaker and opening it up, I confirmed the ground wire is connected. However, my multimeter showed these readings:
- Live to Neutral: 120v
- Live to Ground: 43v
- Ground to Neutral: 32v
I've watched a bunch of YouTube videos, and it's clear something isn't right, but I haven't found guidance specific to this situation. I'm not sure how to proceed from here.
3 Answers
It sounds like there might be a problem with how the ground wire is connected at the other end. Generally, ground and neutral wires should be very close in voltage because they tie together at the main panel. You’re seeing a significant voltage difference, which indicates a serious issue. It could be that the ground or neutral wire has a break, corrosion, or a poor connection somewhere, preventing proper bonding. It's not safe to use that outlet until it’s checked out by a pro!
Absolutely, better safe than sorry! Make sure to get an electrician to take a look instead of trying to fix it yourself.
Another tip is to see if you can connect a wire to a good earth ground, like a buried copper pipe, and measure the voltage again. Normally, you shouldn’t see voltage between neutral and ground unless there’s something else on the circuit drawing power. If anything is plugged in, try turning it off to get a clearer reading.
Good point, but keep in mind that it’s normal to see some voltage between neutral and ground depending on the load. Try to keep your measurements low impedance!
Exactly! Just make sure you remember that the earth isn’t a true ground, since it’s not bonded like your system's ground is.
You might want to consider that this could be a bigger issue affecting your home. The neutrals and grounds should be properly bonded at the main panel, which means if there’s a bad connection in the breaker box or even outside, it can cause issues like this. I advise you to reach out to an electrician since these things aren't really DIY-friendly. They can really assess the whole situation.
Yeah, I hear you. Just don’t use that outlet until it’s checked!
Right? DIY fixes can sometimes lead to more trouble if it’s an underlying connection issue.
Yeah, definitely double-check other outlets too. It might help pin down if it’s just that outlet or something with the whole circuit.