GFI fails after turning off circuit power

**Matt Fellman** · 11-20-2011, 09:52 PM

This is my own house, thankfully. Kind of strange and I thought I'd see anyone has seen this happen.

I had to shut off power to replace some outlets and a GFI failed. By failed I mean there was no more power through it. It died in an on or "non-tripped" position but the wire going in was the last hot thing. Nothing at the receptacle openings or downstream. Something that shouldn't matter but I'll mention anyhow is that the circuit the GFI is on is actually a common trip with the circuit I was working on (not shared neutral - just common trip). So, the only thing done on the GFI circuit was literally turning the breaker off then on.

I don't have another GFI handy but I nutted the wires together and the circuit is live again and I tested the faulty GFI on another circuit and it's bad.

This mainly gets my attention because just a couple weeks ago I had a buyer call and complain about a dead GFI outlet and it was the exact same thing... wiring to the GFI was fine but the outlet and downstream items were dead..... and I know I tested it at the inspection and it was live. And the power to the house had been off between the time I was there and the buyers moved in.

So, has lighting struck twice or is there some reason a GFI is more likely to fail after the power on the circuit is turned off?

Similar Threads:

**Bruce King** · 11-20-2011, 10:00 PM

It probably has a power on self test that runs internally. When some certain component fails, you don't see it until you cycle the power. If you hear it click when you turn it on and the handle does not move then you could have just a bad trip mechanism or a ground fault and a bad trip mechanism.

**Jack Feldmann** · 11-20-2011, 10:03 PM

Probably the same reason they sometimes won't go back on after testing them - its just the time they decided to go bad.

Roger Frazee · 11-21-2011, 12:28 AM

Originally Posted by Matt Fellman

This is my own house, thankfully. Kind of strange and I thought I'd see anyone has seen this happen.

I had to shut off power to replace some outlets and a GFI failed. By failed I mean there was no more power through it. It died in an on or "non-tripped" position but the wire going in was the last hot thing. Nothing at the receptacle openings or downstream. Something that shouldn't matter but I'll mention anyhow is that the circuit the GFI is on is actually a common trip with the circuit I was working on (not shared neutral - just common trip). So, the only thing done on the GFI circuit was literally turning the breaker off then on.

I don't have another GFI handy but I nutted the wires together and the circuit is live again and I tested the faulty GFI on another circuit and it's bad.

This mainly gets my attention because just a couple weeks ago I had a buyer call and complain about a dead GFI outlet and it was the exact same thing... wiring to the GFI was fine but the outlet and downstream items were dead..... and I know I tested it at the inspection and it was live. And the power to the house had been off between the time I was there and the buyers moved in.

So, has lighting struck twice or is there some reason a GFI is more likely to fail after the power on the circuit is turned off?

You did try to reset it correct?

**Jerry Peck** · 11-21-2011, 04:37 PM

Is the GFCI possibly mis-wired line and load?

Not sure why it would even have been on the first time, but the newer GFCI will not reset if mis-wired line and load.

Darrel Hood · 11-21-2011, 04:42 PM

They are not very reliable. It probably failed and a replacement is needed. Pretty simple deal.

**Matt Fellman** · 11-21-2011, 08:49 PM

Yes, tried the reset (you didn't really ask that did you

)
Yes, wired correctly
Yes, very simple to fix

Installed it about 6 months ago and best I can remember this is the first time I've turned off power on the circuit.

I think I'll chalk it up to the CCC principle.... cheap chinese crap.

Roger Frazee · 11-21-2011, 11:19 PM

Originally Posted by Matt Fellman

Yes, tried the reset (you didn't really ask that did you

)
Yes, wired correctly
Yes, very simple to fix

Installed it about 6 months ago and best I can remember this is the first time I've turned off power on the circuit.

I think I'll chalk it up to the CCC principle.... cheap chinese crap.

Yes I did and I got the reaction I was hoping for ....

Was this a Leviton gfci ?? Red reset button and black test button

**Matt Fellman** · 11-22-2011, 07:33 PM

Originally Posted by Roger Frazee

Yes I did and I got the reaction I was hoping for ....

Was this a Leviton gfci ?? Red reset button and black test button

Yep... Leviton

Roger Frazee · 11-22-2011, 08:05 PM

Originally Posted by Matt Fellman

Yep... Leviton

I don't remember the years but Leviton had a ton of bad product (gfci's) out on the market. I had a case lot once and they would trip out with a light tap of a screwdriver on the face plate and never reset again once tripped. Some sort of defect in the contact locking mechanism.