First, be sure the pigtail is completely seated into the EVSE (mobile charger). It requires a very firm squeeze to fully seat.
It's used to generate 120 V if whatever is plugged in also needs 120 V... here's a longer answer I posted in another thread.
Three! I have had 4 different Level 2 chargers that haven't charged our 2021 Lincoln Corsair GT PHEV and two electricians who tested our 240VAC. The second electrician brought a new Juice Box and it would not charge, however, the owner brought his Tesla S over and it charged the Tesla fine. They concluded it is the car. Lincoln won't believe them because the car Level 2 charges at the dealer. The second electrician is a certified Tesla charging station installer. He says it is the same problem Tesla had until they changed software to allow more variance in the level of 240VAC supplied. He has seen the same with several Mach-e installations. There is a Ford Mach-e TSB that covers "charges at dealer but not at residence" Level 2 charging. The Lincoln dealer knows of the TSB but because it was not issued for the Corsair, he ignores it.
Yup, this is very likely your problem since I see you're in Illinois. I would guess that Lincoln will need to make a similar update available for their PHEVs, but there's not much your dealer will be able to do until that update is available. Does your Lincoln dealer also sell and service Fords?
Wickstrom Ford/Lincoln in Barrington, IL. They have had the car in 4 times for a total 26 days. They refuse to believe it is anything but our wiring. I have now taken it to Rohrman Lincoln in Schaumburg, IL. The car charged there but they have not closed the ticket as I gave them the Mach-e TSB and they want to check it out. They complain that Ford does not share issues with them and, even if it is the fix, they cannot be paid to do it because it is a Ford TSB. What a company!
Well, they're correct that they can't apply this Ford TSB to a Lincoln since it's a software update that won't show up in FDRS for your car. Lincoln will need to issue a module update of their own.
Many people have had problems with the Ford charger not working well. Appears that the charger is not that robust. First thing is to try a different charger and see if the problem persists.
I used the portable charger for eighteen months and didn't have issue, BUT long term it's just not that robust to be used as a regular charging option. If' you're still under the original 36 month warranty the charger is covered.
6-7 KW is the normal rate for the Ford Mobile Charger. The drop you are seeing in conjunction with the amber light is the typical failure mode of that charger. It is still in warranty, get it replaced.
