Problem with home charging ChargePoint home Flex

[Alexsouthcleveland]

Just took delivery of my 2022 F-150 lightning ER a little bit ago. But I’ve been having some issues with my home charging that I’m not sure if anyone else is having.

So I have had a ChargePoint home flex that is hardwired to a dedicated 60 amp circuit. I have been using this charger for a year without any issues. It charges my Kia Sorento PHEV with no issues as well as my Ioniq 5. But every time I plug in the lightning it stops charging during the middle of the charge. Sometimes it goes for an hour and a half sometimes for 3 or 4 hours. But then I always get a charging interrupted (red light) and have to unplug and replug. I have reached out to ChargePoint but have not gotten any response as of it.

here’s what I’ve done to try and resolve the issues.
reboot the charger from ChargePoint app.
reset it to factory settings.

Then I tried setting the amperage to a 50 amp breaker vs what it should be set as a 60 ampbreaker.

Ive tried turning off charging locations in the F-150 lightning.

My thinking is it’s a communication issue between the truck and the charger. It charges from the included mobile charger with no problem. Any suggestions would be great! Thanks so much!

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[frautumn]

I also have a Chargepoint Home Flex (50A circuit, plugged in, charging at 40A), it's been working mostly fine for me since I got the truck in early July. Early on, I did have the issue you mention where charging is interrupted for no reason and got the red light, it happened 2 or 3 times over the course of a week but hasn't happened in the past 6 weeks so it seems to have righted itself.

 

[Maquis]

Can you charge successfully on a different EVSE?

 

[Alexsouthcleveland]

Can you charge successfully on a different EVSE?

Yes it charges fine on Fords Mobile Charger. Going to install Charge station pro next week but just want to figure this out in case others don’t have any other options. Plus it should just work.

 

[Maquis]

Yes it charges fine on Fords Mobile Charger. Going to install Charge station pro next week but just want to figure this out in case others don’t have any other options. Plus it should just work.

The FMC is quite a bit less current than your CP. My guess is that there’s a problem with the CCS socket in your truck. This same problem has been reported by a couple Mach-E owners. If too high a temperature is sensed at the connector, charging is stopped. Have your dealer check for a DTC.

 

[Alexsouthcleveland]

I also have a Chargepoint Home Flex (50A circuit, plugged in, charging at 40A), it's been working mostly fine for me since I got the truck in early July. Early on, I did have the issue you mention where charging is interrupted for no reason and got the red light, it happened 2 or 3 times over the course of a week but hasn't happened in the past 6 weeks so it seems to have righted itself.

hmm interesting! I hope it does the same here driving me crazy…

The FMC is quite a bit less current than your CP. My guess is that there’s a problem with the CCS socket in your truck. This same problem has been reported by a couple Mach-E owners. If too high a temperature is sensed at the connector, charging is stopped. Have your dealer check for a DTC.

Ok thanks for the suggestion! I assume if it is a overheating problem with the truck it will run into the same problem with FCSP. Sorry I’m a noobie what’s DTC?

 

[Tomwilli2025]

If you have a 60 amp breaker, your EVSE needs to be set to 48 amp. I don't think the other EV's you mentioned have onboard ac chargers as large as the ER so you were probably calling for more than the breaker could handle. Just my guess.

 

[Maquis]

hmm interesting! I hope it does the same here driving me crazy…


Ok thanks for the suggestion! I assume if it is a overheating problem with the truck it will run into the same problem with FCSP. Sorry I’m a noobie what’s DTC?

DTC = Diagnostic Trouble Code.
Since your problem seems to only occur at higher charge rates, you could set the FCSP at 32A or less until you get the problem resolved. But yes, I’d expect the problem to still occur at higher charge rates.

 

[Alexsouthcleveland]

If you have a 60 amp breaker, your EVSE needs to be set to 48 amp. I don't think the other EV's you mentioned have onboard ac chargers as large as the ER so you were probably calling for more than the breaker could handle. Just my guess.

Hey Tom Thank you but I am referrering to the app setup on the ChargePoint home flex. When you first set it up or restore it to factory settings in my case it asks what amp breaker it is installed on. Then the charger itself would limit it to 48 Amps I believe. Here is a screenshot of me just charging the ioniq 5 which charges at around 11 KW. It charges it no errors every time! So that’s why I think maybe there’s communication errors between f-150 lightning and ChargePoint home flex. But again I’m a noobie and relatively new to EVS.

 

[The Rogue Robot]

Hey Tom Thank you but I am referrering to the app setup on the ChargePoint home flex. When you first set it up or restore it to factory settings in my case it asks what amp breaker it is installed on. Then the charger itself would limit it to 48 Amps I believe. Here is a screenshot of me just charging the ioniq 5 which charges at around 11 KW. It charges it no errors every time! So that’s why I think maybe there’s communication errors between f-150 lightning and ChargePoint home flex. But again I’m a noobie and relatively new to EVS.

we just charged our Lightning on our CP Home Flex last night. No problem with charging, except we did have an issue with it not calculating correctly.

60 amp circuit, 6 gauge wire, hardwired about 6’ from our panel. Charge cable and breaker were slightly warm after an hour but by no means hot.
Try plugging in and checking the temp of your breaker, wiring, CP HomeFlex, charging cable, plug, and charge port.

 

[Alexsouthcleveland]

Just an update in case any others are experiencing this problem.

ChargePoint customer service identified the fault codes in my charger as “Virtual breaker detected by current coil”

They said that error code happens when you have your ChargePoint home flex installed on a GFCI breaker. However my ChargePoint is NOT installed on a GFCI breaker. The truck is tripping the ChargePoint for some reason.

After setting the amperage on the ChargePoint to a 30 amp breaker it’s working fine with no problems. I can still charge to 80% overnight so it’s not a big deal. However it is frustrating to me.

Again this same charger works fine with my Ioniq 5 at full 60 amp setting.

Also I scanned the truck with my Veepeak OBD and car scanner and there were no error codes.

Obviously charging is critical to BEVs and ford needs to make these issues a priority.
Looking forward to getting my FCSP installed to see how that goes.

Hopefully a software update will fix this soon.

 

[greenne]

Hello,

I am having similar problems with my chargepoint flex 48A hardwired.

I had an electrician install a new 60A breaker, wire and hardwire a chargepoint flex 48A with an additional breaker just beside the EVSE mount in garage. (I was told this was needed to meet code).

Been doing a deep charge (20-90%) of my Lightning ER for a few months every week or so. (I do not plug it up every night). No problem until last night.

After about an hour on the charger(at about 30% SOC) the EVSE tripped the breaker on the panel. (The breaker next to EVSE OK).

I rest the breaker and tried to charge again. After about 15min I tripped again. I did try to adjust the setting on the EVSE App, but chargepoint in their infinite wisdom decided to get rid of that.

So I removed the EVSE from my acct and reloaded it with a new rating for 50A breaker(should charge at 40A vs 48A). I tried again and it worked for a bit longer.. about an hour. Then breaker tripped again.

Repeated method and tried at 40A breaker setting(32A charging) and it worked for a few hours. Tripped again.

I have the installer coming back next week to look at it. I am wondering if there's anything i can do to troubleshoot. I should say that the breaker next to the EVSE "box" does NOT trip--it trips at the panel Also, I do not get a charger fault of any kind..it simply trips the breaker. So I am thinking the EVSE is NOT detecting a fault and/or internal GFCI is NOT being tripped.

One other thing..I felt the circuit panel breaker and it was warm--not HOT--but I've never had a breaker get warn before. Of course I am drawing a steady load on it. It that normal,,for it to get warm?

Suggestions/Thoughts?

EDIT: unlike OP I am NOT getting a red light or any sort of error on the EVSE unit...it simply trips the breaker. I'm thinking its a bad breaker but we'll see...

 

[Maquis]

Hello,

I am having similar problems with my chargepoint flex 48A hardwired.

I had an electrician install a new 60A breaker, wire and hardwire a chargepoint flex 48A with an additional breaker just beside the EVSE mount in garage. (I was told this was needed to meet code).

Been doing a deep charge (20-90%) of my Lightning ER for a few months every week or so. (I do not plug it up every night). No problem until last night.

After about an hour on the charger(at about 30% SOC) the EVSE tripped the breaker on the panel. (The breaker next to EVSE OK).

I rest the breaker and tried to charge again. After about 15min I tripped again. I did try to adjust the setting on the EVSE App, but chargepoint in their infinite wisdom decided to get rid of that.

So I removed the EVSE from my acct and reloaded it with a new rating for 50A breaker(should charge at 40A vs 48A). I tried again and it worked for a bit longer.. about an hour. Then breaker tripped again.

Repeated method and tried at 40A breaker setting(32A charging) and it worked for a few hours. Tripped again.

I have the installer coming back next week to look at it. I am wondering if there's anything i can do to troubleshoot. I should say that the breaker next to the EVSE "box" does NOT trip--it trips at the panel Also, I do not get a charger fault of any kind..it simply trips the breaker. So I am thinking the EVSE is NOT detecting a fault and/or internal GFCI is NOT being tripped.

One other thing..I felt the circuit panel breaker and it was warm--not HOT--but I've never had a breaker get warn before. Of course I am drawing a steady load on it. It that normal,,for it to get warm?

Suggestions/Thoughts?

EDIT: unlike OP I am NOT getting a red light or any sort of error on the EVSE unit...it simply trips the breaker. I'm thinking its a bad breaker but we'll see...

It could be a bad breaker, undertorqued wire connection, or bad buss connection to the breaker. Yes, a continuously-loaded breaker will get warm. You electrician can easily check this plus measure the actual charging current. If the charging current is not excessive, the problem is one of the above.

The local breaker next to your EVSE is nice to have, but the NEC only requires a disconnect in sight of the EVSE if the circuit is greater than 60A.

 

[greenne]

It could be a bad breaker, undertorqued wire connection, or bad buss connection to the breaker. Yes, a continuously-loaded breaker will get warm. You electrician can easily check this plus measure the actual charging current. If the charging current is not excessive, the problem is one of the above.

The local breaker next to your EVSE is nice to have, but the NEC only requires a disconnect in sight of the EVSE if the circuit is greater than 60A.

Maybe he was playing it safe with the disconnect OR that is just something his company does. (They are very professional.. highly rated). In any case I'm happy its there.

I'm sure the electrician will check everything, but my money is on a bad breaker or something. like you described above. Since I am NOT getting a fault at the EVSE I'm thinking the problem is with the breaker/wiring vs the EVSE unit itself(or truck).

 

[greenne]

Maybe he was playing it safe with the disconnect OR that is just something his company does. (They are very professional.. highly rated). In any case I'm happy its there.

I'm sure the electrician will check everything, but my money is on a bad breaker or something. like you described above. Since I am NOT getting a fault at the EVSE I'm thinking the problem is with the breaker/wiring vs the EVSE unit itself(or truck).

Update:

Electrician just left and EVSE is now operating normally. Truck is charging.

Both screws on the circuit breaker were loose..one slightly, one about half turn.(ugh)

Screws tightened and we did a load test. No issues...continuous load at 48A (+/- 0.2A). Was told this was well within reason.

So..moral of the story..make sure those connections are tight!

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