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Charging at home

Ritu_o0o

Member
Jan 12, 2018
76
12
California
Guys,

I have 220 V NEMA 14-50 with 50A breaker set in the garage for charging, yesterday I noticed charging screen it says it is charging at 118V @14miles/hr. Is that normal? I was expecting it to charge around 25-30 miles/hr!! Am I missing anything?
 

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JCB_Arizona

Member
Apr 19, 2016
191
128
Arizona
Guys,

I have 220 V NEMA 14-50 with 50A breaker set in the garage for charging, yesterday I noticed charging screen it says it is charging at 118V @14miles/hr. Is that normal? I was expecting it to charge around 25-30 miles/hr!! Am I missing anything?

Yep. Somethings not right. Your car isn’t receiving 240 volts. Get it checked out.
 
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Lloyd

Well-Known Member
Supporting Member
Jan 12, 2011
6,322
2,124
San Luis Obispo, CA
Check that you are firmly plugged into your charge port. If no change, then you are only getting one of the two hot legs to your plug. Reset the breaker if no joy, then call your electrician. It could be your HPC also. An electrical tester will tell you if you have 240 V between the two hot legs of the plug.
 

boaterva

Supporting Member
Supporting Member
Apr 2, 2016
7,573
3,746
Northern Virginia, USA
And pulling 40 amps on 120? I think the problem is his charger and not plug. But who knows.
Yeah, that is completely weird. I’d unplug it and call my electrician if I couldn’t figure it out. A voltmeter to test the socket might be useful but we’re straying into don’t try this at home territory.
 

Graffi

Member
Apr 30, 2017
713
711
San Diego, CA
+1 to the posts above. If you have some knowledge of electricity and have a volt meter then you can start troubleshooting yourself. After you have unplugged the cable from the car and plugged it in again check for change. If the same, then reset the breaker. Now check again. If no change, then disconnect from the car, unplug the HPWC from the 14-50 plug and check the voltage across the 14-50 outlet. If you have the 240 volts then the problem is with the HPWC. Remove the covers and start looking inside for any visible damage. If none, and you are handy with a volt meter then you can plug it back in to the 14-50 and look for electricity in and out.

It is at this stage that if you are not comfortable around electricity then you get an electrician to take a look. I doubt it is the car, but if all else fails, find another HPWC, or even a J1772 plug to test charging. A Supercharger will not help as it does not use the on-board charger. If another HPWC or J1772 also gives only 120v then take it to a Service Center as you have a charger problem. If you do get 240v then the problem is your HPWC. Your electrician may be able to find and fix the problem, maybe not.

Good Luck and keep us posted on the solution.
 

Derek Kessler

Active Member
Apr 15, 2016
1,193
1,806
Cincinnati
This is definitely a case of only a single hot line being connected. There are three failure points: the breaker, the receptacle, and the plug.

If I had to guess, one if the two 120V came disconnected at either the breaker or the receptacle. Either is a relatively easy fix, if you're comfortable with it. If not, it's electrician time.
 
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smsprague

Member
Mar 3, 2014
555
60
Prescott, AZ
I had a similar problem earlier this week. It turned out to be the breaker. I put in a new breaker and it fixed the issue. If you are comfortable with electrical work testing a breaker with a multimeter is real easy. This is the first thing I would check.
 

Ritu_o0o

Member
Jan 12, 2018
76
12
California
Thank you, guys... the problem turned out to be at the receptacle, the wires were swapped (natural and hot) so technically charger was getting only one hotline.... now all good...
 
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juju

Member
Mar 28, 2018
51
44
Atlanta
An electrician can test the outlet. Just had an outlet installed at my house today. Guy made sure to check the voltage...

9AE6BBC4-D9DB-425E-A657-DD803C0A12D1.jpeg
 

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