NEMA 14-50 not working with my mobile charger

[RV help]

Hi,
I am having issues with my mobile charger. It works good with the 120v but when I connect to a 14-50 it drops the charge and there are 5 red lights blinken. Its says reduce charge. I had an electrician make sure the power was correct and we are at 239v so that seems to be well within range. The minute I plug in the mobile charging unit, the red light starts blinken. That is before it even gets plugged into the car. We tried to mobile charging units. Anyone have any suggestions?

 

[E90alex]

If you tried two different mobile connectors and it’s still the same then it’s probably something with your wiring or the 14-50 adapter itself

 

[Sophias_dad]

Are you sure the 14-50 adapter is plugged all the way into the UMC, and can you try plugging into a known-good 14-50? (not that I don't trust a professional electrician, of course)

The 'reduce charge' might well be a sign of a defective 14-50 adapter, if the temperature sensor in it is broken.

 

[toshman]

What amps are you drawing ?

 

[RV help]

I ordered a new a new 14-50 adapter to see if that is the problem. I wish I had a friend in my area that has a 14-50 so I can plug it in and see if I get the same error. I did check the temperature on the adapter and its at 70 degrees. I do not know the AMPS. When I figure this out I will post what it was.
Thank you.

 

[Black306]

Check a local RV park. They may have an outlet you can try.

RV Park and Campground Amenities — Bonelli Bluffs RV Resort

Bonelli Bluffs RV Park is an RV resort and campground with 504 large, paved, full hookup sites and beautiful waterfront camping near Los Angeles, California.

www.bonellibluffsrv.com

EDIT: or plugshare

LA County Fairplex - Lot 1 | Pomona, CA | EV Station

Lot 1 directly in front of NHRA Motorsports Museum. Several 240v 50 amp / 120v 20 amp hookups around the parking lot. Some next to the museum, and some near McKinley Ave under the trees. Presumably used for food truck Thursdays which is held in the same lot.

www.plugshare.com

 

[ATPMSD]

Try this. Get in your car and set the desired charge level below the current SOC, make sure the charge limit set to 32a, now plug into the 14-50. Get back in the car and set the desired charge level above the current SOC and carefully watch the voltage and see what it does.

 

[DougDC]

Definitely try to find a friend with their own known working 14-50. Take out all the variables, hold some of them constant (like trying your charger on other nema 14-50), and start eliminating theories.