Home Level 2 Charger Issues

[Brademcee]

Should we just not use the FordPass for now? https://www.macheforum.com/site/threads/avoid-fordpass-app.3973/

I was thinking my home charging issues could be something relating to the Ford Pass charging schedules getting corrupted. But I did do a Sync Master Reset and deleted the car from the Ford Pass app. I then tried to charge without setting up the Ford Pass app or having any home locations and it would still not charge. Now there is a chance that there is a deeper issue which the Master Reset doesn't erase. So, I can not answer your question definitively but based on my troubleshooting I am not able to fix my issue by not using the Ford Pass app.

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[SMDJim]

I have a charger in MD, but the car is still on STOP SHIP in Mexico. I think they already knew about the charging problem, and are hold some cars with the problem in Mexico.

 

[Mirak]

I'm not well-versed in electrical speak but, for what it is worth, my electrician looked at the mobile charger documentation he could find online and concluded that 6/3 romex w/ ground was required. In other words, that's four wires total: 2 hots, 1 neutral, 1 ground. You might be able to get by with 8/3 on a 40amp, but you're going to need 4 total wires regardless.

I take it this is not the OP's issue, but just throwing that out there for anyone else doing the install.

 

[Edgardk]

I was thinking my home charging issues could be something relating to the Ford Pass charging schedules getting corrupted. But I did do a Sync Master Reset and deleted the car from the Ford Pass app. I then tried to charge without setting up the Ford Pass app or having any home locations and it would still not charge. Now there is a chance that there is a deeper issue which the Master Reset doesn't erase. So, I can not answer your question definitively but based on my troubleshooting I am not able to fix my issue by not using the Ford Pass app.

I have been dealing with this issue for 2 weeks. Couple of days at the dealer. Tried everything. Double check all the wiring at home. It would charge everywhere but at my house (Ford charger and ChargePoint) I Must have done something last Friday which suddenly let me charge now but only if I plugged in while the car is ON. The charge with ChargePoint is 9.8kwh/28miles. 50 amp breaker. But I’m still getting weird messages on my FordPass. I’m 100% sure it is a software issue with blocking the charge when home. As Brad mentioned, it seems that the car has some kind of memory which can’t be erased by the master reset and still remember the house.

 

[malba2366]

So this is going to throw a twist on things. I drove my car in to the shop today and it charges fine on both the Ford mobile charger and on the Juice Box charger at 220V.

This is really looking like an issue caused by voltage that is slightly higher than spec. It works at the dealers/commercial chargers because most of them are probably on commercial 208v power. It may work intermittently at home because your voltage dips when the car does it’s handshake with the charger and then the sustained draw may keep the voltage just low enough to keep going.

 

[CHeil402]

This is really looking like an issue caused by voltage that is slightly higher than spec. It works at the dealers/commercial chargers because most of them are probably on commercial 208v power. It may work intermittently at home because your voltage dips when the car does it’s handshake with the charger and then the sustained draw may keep the voltage just low enough to keep going.

I agree. I still beleive the root cause is high voltages. Even if Ford increased the voltage they were willing to accept for the onboard charger, I would strongly recommend bringing that up with your electric utility.

I don't have my car to test yet, but for reference my 14-50 plug just measured at 246 V.

 

[Edgardk]

This is really looking like an issue caused by voltage that is slightly higher than spec. It works at the dealers/commercial chargers because most of them are probably on commercial 208v power. It may work intermittently at home because your voltage dips when the car does it’s handshake with the charger and then the sustained draw may keep the voltage just low enough to keep going.

the voltage at my house has been always around 254v-256v now it is working at 256v.

 

[Brademcee]

Also does not explain why another Mach-E was able to charge at my house with no issues. We were literally moving the EVSE connector between both car's charge ports and mine wouldn't charge and the other MME would charge every time.

 

[tkompass]

This is really looking like an issue caused by voltage that is slightly higher than spec. It works at the dealers/commercial chargers because most of them are probably on commercial 208v power. It may work intermittently at home because your voltage dips when the car does it’s handshake with the charger and then the sustained draw may keep the voltage just low enough to keep going.

But when the dealer brought another Mach E over to Brads house it charged fine. Maybe some are more picky than others?

 

[CHeil402]

Also does not explain why another Mach-E was able to charge at my house with no issues. We were literally moving the EVSE connector between both car's charge ports and mine wouldn't charge and the other MME would charge every time.

If the voltage is near the cutoff point, one car's voltage sensor might be +/- 1 or 2 % different.

 

[Maquis]

Voltage tolerances are defined by ANSI C84.1. Here are the numbers for 240V:

While the max is 252, I would consider equipment to fail to operate at 256 to be of poor design.

 

[Curt]

You need to contact your dealer. You have the same exact issue as us. It’s an issue with the car. Just curious, where did you buy your car (state and if in Illinois, which city)? Also, you can see the build date of your car by looking at the driver side door well. What is your build date?

I'll add my name to the list. I had another thread started a few days ago, but my experience mirrors the ones shared here. 12/20 build date and I live in Florida. Still no resolution, trying the dealership but not hopeful.

 

[Brademcee]

I'll add my name to the list. I had another thread started a few days ago, but my experience mirrors the ones shared here. 12/20 build date and I live in Florida. Still no resolution, trying the dealership but not hopeful.

I am finishing my works calls in another hour and I am going to create a spreadsheet for tracking so we can all enter our VINs. It is becoming a known issue, as I am in communication with Ron Heiser @ Ford corporate.

 

[Brademcee]

Voltage tolerances are defined by ANSI C84.1. Here are the numbers for 240V:

While the max is 252, I would consider equipment to fail to operate at 256 to be of poor design.

I had the electrician at the house this morning and he disconnected by charger, took a meter and verified I have 248V at the outlet. We plugged the EVSE back in and it still did not charge. I agree, either an issue with the 240V and the variable voltage that can happen that some MMEs are not liking or it is software relating to the car not charging while at home (or sporadically charging at home). Either way, makes me feel better that the Chief Engineer of the Mach-E is in communication with me and the dealership. After I create the online excel sheet and we start listing the effected VINS, hopefully that can provide his team further insight.

 

[Edgardk]

I had the electrician at the house this morning and he disconnected by charger, took a meter and verified I have 248V at the outlet. We plugged the EVSE back in and it still did not charge. I agree, either an issue with the 240V and the variable voltage that can happen that some MMEs are not liking or it is software relating to the car not charging while at home (or sporadically charging at home). Either way, makes me feel better that the Chief Engineer of the Mach-E is in communication with me and the dealership. After I create the online excel sheet and we start listing the effected VINS, hopefully that can provide his team further insight.

Thank you

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