Fault with NEMA 14-50 and Nissan charger

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Welcome. You don't need a Neutral, but unless it's somehow being connected to the charging cable when plugged in, that shouldn't produce a fault.
Is that why the trickle charge adapter that comes with the model 296900 charger just shorts neutral to ground for use on ordinary 20amp outlets? I have to add an outlet that accepts the lugs as they are configured for the 240 outlet ... AKA "range outlet". That is nominally a 50 Amp circuit but I will put it on a 40 A breaker so the 30A load listed on the charger is properly fed. The 2020 Leaf owner's manual says this charger will not work if a proper ground is not present. Not needing a Neutral but having it wired anyway does not sound like it should cause a problem...I HOPE.
 
Is that why the trickle charge adapter that comes with the model 296900 charger just shorts neutral to ground for use on ordinary 20amp outlets? I have to add an outlet that accepts the lugs as they are configured for the 240 outlet ... AKA "range outlet". That is nominally a 50 Amp circuit but I will put it on a 40 A breaker so the 30A load listed on the charger is properly fed. The 2020 Leaf owner's manual says this charger will not work if a proper ground is not present. Not needing a Neutral but having it wired anyway does not sound like it should cause a problem...I HOPE.
The 120V adapter that comes with the OEM portable Nissan EVSE (296900 charger unit) basically configures the wiring on the EVSE plug as shown below:
NEMA 15-15P to 14-50R wiring diagram.png
Note that the neutral (red wire) is not shorted to ground. This allows the EVSE to see that it is getting a 120V supply.

If wired properly, having the neutral on a 240V outlet for your EVSE is not necessary, but should be fine.
Why are you having the neutral wired on this EVSE outlet? Will the outlet be shared with some other loads?
 
I had a NEMA 14-50 outlet installed at home panel is not 208v capable) by a licensed electrician.

Prior to its install, I've charged my 2022 SV Plus just fine on 110v and the included Nissan charger, but the charger faults within 5 seconds of being plugged into this 14-50 outlet.

I happened to find an available outdoor 14-50 outlet via Plugshare and tested the charger on it. Charger worked fine.

I've also tested a few public level 2 chargers and they also work fine, so 14-50 outlet at my home is the problem.

I was with the electrician while he did the install - ground, neutral, and the two hot wiring all look good (to me) on the panel side.

With the six gauge wire being used, which is obviously difficult to maneuver - he had an expected challenge trying to bend and stuff it into place, I'm not going to touch the outlet, and the double 40 amp breaker is too stiff in the panel for me to feel comfortable trying to remove and reseat, though I could try again.

He is due back on Friday to review it again. But, in the meantime, what are people's thoughts/insights on what I might be able to do to see if I can fix the problem on my own?

I did run a multimeter on the outlet and get 120-ish (123, etc) volts on either side, so the volts are there.

Thanks.
My Nema 14 240v outlet worked for 5 yrs with nissan ev charger. 4 months ago I leased an ioniq 5 and kept charging it too at home. A few days ago the power and fault lights came on and the charger stopped charging.
Could it be the charger or the voltage or leaking?
I shut down all power to the home except the 240v to charger and still did not work. So I guess if the other home outlets have any leaks are not the cause of the ev charger not working.
I am going to check the V on the charger outlet tomorrow.
Any opinion?
 
If the EVSE was working before but suddenly stopped, I would guess that the problem is a failure of the EVSE or the car charger.

Any incompatibility of voltage, etc would should up immediately unless there was a brown-out of the grid or something, which is very unlikely.
 
Unplug the EVSE and look for signs of heat damage to the Plug or receptacle.
If you are using the same EVSE to charge both vehicles, and it will not charge either vehicle, then the fault is likely in the EVSE or in the wiring to the NEMA 14-50 outlet.
 
Unplug the EVSE and look for signs of heat damage to the Plug or receptacle.
If you are using the same EVSE to charge both vehicles, and it will not charge either vehicle, then the fault is likely in the EVSE or in the wiring to the NEMA 14-50 outlet.
The charger does not work with 120
V either. Voltage across the 240 socket reads 240. So I guess the charger is gone bad after 4 yrs.
Nissan wants $285 to diagnose it!!!
Ordered an after market for 120. We will see how that goes 😀
 
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