Emporia charger completes but ends session with fault

[GatorJ_MME]

Just filed a ticket with Emporia for the same issue. The last time my car was at the dealer for the HVJB recall, I asked them to check on this behavior. The dealer claimed they pulled codes from the charging system and could see that the Emporia charger doesn't always shut off the charge current/voltage in time when the car asks for it to be shut off. This apparently is what causes the charge fault on the car. It's happened to me over the past couple of years fairly infrequently, and if it did happen, it was mostly in the winter, and never in the summer. This winter, however, it seems to be about 50% of the time. Unplugging / replugging solves it most of the time (although sometimes I've had to do that 2 or 3 times in a row).
In the chat with Emporia, they claimed already that there was nothing wrong with my charger, but they'll investigate.
I did try to charge my car on another charger a few times, and none of those sessions resulted in a fault.... So it's likely a compatibility problem between the charger & the car. But I'm sure it'll be Ford pointing to Emporia and Emporia pointing to Ford...

Thanks for the update. In you case, does the charge fault only happen after you reach the current charge limit (i.e. 80%), or immediately upon plugging in?

Sponsored

 

[Maquis]

Just filed a ticket with Emporia for the same issue. The last time my car was at the dealer for the HVJB recall, I asked them to check on this behavior. The dealer claimed they pulled codes from the charging system and could see that the Emporia charger doesn't always shut off the charge current/voltage in time when the car asks for it to be shut off. This apparently is what causes the charge fault on the car. It's happened to me over the past couple of years fairly infrequently, and if it did happen, it was mostly in the winter, and never in the summer. This winter, however, it seems to be about 50% of the time. Unplugging / replugging solves it most of the time (although sometimes I've had to do that 2 or 3 times in a row).
In the chat with Emporia, they claimed already that there was nothing wrong with my charger, but they'll investigate.
I did try to charge my car on another charger a few times, and none of those sessions resulted in a fault.... So it's likely a compatibility problem between the charger & the car. But I'm sure it'll be Ford pointing to Emporia and Emporia pointing to Ford...

What the dealer told you doesn’t sound right. The EVSE shouldn’t “shut off” until you unlock the charge plug.

 

[azerik]

I've put about 30 more sessions through mine without a fault. But like I said, I'm somewhere in the 6.3 updates still.

 

[rvdbijl]

Thanks for the update. In you case, does the charge fault only happen after you reach the current charge limit (i.e. 80%), or immediately upon plugging in?

It happens right when the charge finishes at 90% in my case. The car is set to 90%. Starting a charge is never an issue, nor is the actual charging process.

 

[GatorJ_MME]

Thanks. That’s not something I’ve run into with my Emporia.

 

[rvdbijl]

What the dealer told you doesn’t sound right. The EVSE shouldn’t “shut off” until you unlock the charge plug.

From what I understand, the car tells the EVSE it's had enough and wants it to stop providing power. The Emporia apparently doesn't do that quickly enough and that's what the car doesn't like. I have an older no-name 40A charger that does not have this issue at all.
When the charge completes, I hear a relay or two click in the car, followed by one in the Emporia. Sometimes I guess that's in time (no fault) and sometimes it's a bit slow (fault).

 

[Maquis]

From what I understand, the car tells the EVSE it's had enough and wants it to stop providing power. The Emporia apparently doesn't do that quickly enough and that's what the car doesn't like. I have an older no-name 40A charger that does not have this issue at all.
When the charge completes, I hear a relay or two click in the car, followed by one in the Emporia. Sometimes I guess that's in time (no fault) and sometimes it's a bit slow (fault).

I hear nothing until I press the release button.

 

[shelnian]

I have the same charger fault issue with the Emporia EVSE. Emporia indicated the issue was with the Mach-E and Ford indicated it was the EVSE. I also have a ChargePoint and it never has caused a charger fault so I believe it's an Emporia hand-shake issue. I observed that when I'm charging or pre-warming and press the engaged latch on the connector it takes the Emporia longer to drop the contactor (hear the click in the EVSE) then the ChargePoint.
I complained about this a second time with Emporia yesterday and today they emailed and indicated they were going to refund me even though it's been two years since I bought it.
I relayed my observations with the contactor dropping delay time. As others have indicated, I'm thinking a firmware update of the Emporia EVSE to reduce the contactor dropping time delay would fix the issue.

 

[Mach-Lee]

I have the same charger fault issue with the Emporia EVSE. Emporia indicated the issue was with the Mach-E and Ford indicated it was the EVSE. I also have a ChargePoint and it never has caused a charger fault so I believe it's an Emporia hand-shake issue. I observed that when I'm charging or pre-warming and press the engaged latch on the connector it takes the Emporia longer to drop the contactor (hear the click in the EVSE) then the ChargePoint.
I complained about this a second time with Emporia yesterday and today they emailed and indicated they were going to refund me even though it's been two years since I bought it.
I relayed my observations with the contactor dropping delay time. As others have indicated, I'm thinking a firmware update of the Emporia EVSE to reduce the contactor dropping time delay would fix the issue.

The J1772 specification says power needs to be shut off within 3 seconds of switching to state B (idle). Do you think the Emporia is taking longer than 3 seconds to shut off?

Press the release button while charging and time how long it takes the Emporia EVSE to click with a stopwatch.

 

[azerik]

Mine isn't taking longer and .5 second. I can see it in the ring. My Tesla charger on the other hand sparks on unplug.
Eh crap, first time I've opened my Emporia app away from home and it had me log in again, I guess I never set up an account with them. But either way I was trying to get you the hardware spec and software version. I'll get it later today. I know I had the main board replaced about 1.5 years ago.
I'm on Firmware 467. Charging at 11.5kW now.
Edit: at 15 minutes it derated to 9kW so I'm not sure if I'll have any luck hitting 11.5 at the ending of the charge.

 

[hack-e]

Thanks. That’s not something I’ve run into with my Emporia.

Would you mind reporting here what your Emporia firmware fees on is as listed on the EV Charger Info page in the app?

Mine says: EVCharger-467

Mine faults about 10% of the time at end of charge since maybe last August. Never happened before that.

 

[GatorJ_MME]

Would you mind reporting here what your Emporia firmware fees on is as listed on the EV Charger Info page in the app?

Mine says: EVCharger-467

Mine faults about 10% of the time at end of charge since maybe last August. Never happened before that.

Same - EVCharger-467

 

[hack-e]

Press the release button while charging and time how long it takes the Emporia EVSE to click with a stopwatch.

I have never seen the fault occur when pressing the release button while charging. Instead it only occurs when the MME reaches its charging target (80% in my case). I get the charge complete notice immediately followed by the fault notice:

 

[GatorJ_MME]

In case it helps, I have a ‘23 std range, RWD. I also set my current limit in Emporia to 28A. I don’t have any other limitations set in the EVSE (time of day, etc.). The car is set to limit charge to 80%.

 

[GatorJ_MME]

I have never seen the fault occur when pressing the release button while charging. Instead it only occurs when the MME reaches its charging target (80% in my case). I get the charge complete notice immediately followed by the fault notice:

Do you have the Emporia set to limit based on time?

Sponsored