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Discussion Starter · #1 ·
Hello all,

Work is becoming increasingly congested with EVs, which make the two Chargepoint chargers constantly in use. If I get in any later than 6:30, they're both taken, and I'm stuck waiting and hoping that I make it out there first when I get a notification that a charger is available. The Chargepoint units they use here each have one J1772 level two charger, and then a level one 120v NEMA 5-15 plug. The chargers are positioned so that 4 vehicles may be parked in front of them, and while I struggle to get a level 2 charger in the morning, I consistently get a spot in front of the charger. I figure if I'm stuck at work for 8-9 hours, I should have enough time to recharge using level 1 (I use about 7.5-8 kWh on the way to work). I brought the EVSE that came with my MY 2013 Volt, and plugged it in. After the relay in the EVSE clicked on and the status light turns green on the car, the Chargepoint station cuts power to the plug and says "Ground Fault" on the screen, and that it will retry in 15 minutes (which subsequently fails). I have tried both the 8 and 12 amp settings, I connected a new plug to the end of the EVSE since the old prongs were worn, and I've still had no luck getting it to charge. I've read online that the stock EVSE has a significant amount of leakage to the ground, which the Chargepoint station assumes is a short. I know that the problem is not in the station since another employee with a Ford Fusion Energi charges using a level 1 charger. He ended up buying a random level 1 unit made who knows where, and it works perfectly for him. Short of going out and buying a $200 level 1 charger (which would take a while to pay off vs. using gas to drive home), is there anything wrong with my EVSE, or anything I can try to reduce ground leaking without burning the place down?

Thanks everyone for your input. I couldn't find a specific thread for charging issues so I hope I put this thread in the right spot.
 

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Discussion Starter · #3 · (Edited)
It does work with other 120V plugs (like at home), however it has about a 50/50 shot at other chargepoint locations. Both stations at work it does not work with, however if I go a mile up the road to other chargepoint stations, it may work on Monday, but not on Tuesday. Same type of station and everything. The power is shut off from the Chargepoint side of things, i.e. as soon as the EVSE brick begins supplying power to the vehicle, chargepoint cuts the power to the entire outlet. I know it's a confusing issue without consistency, and it's been driving me up a wall! I may end up buying an aftermarket EVSE and try that since others can make it work, however it's hard to justify the $200 investment, which would take me a while to make up in fuel savings

Thank you! Let me know if there's any other info that could help.
 
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