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Model S unable to charge

Got into my MS this morning and noticed the screen reads "unable to charge, unplug and try again" and the charge port is solid red. I unplugged the charge cable and tried again, the charge port was flushing green for about a second or two followed by solid red again and the screen reads the same error message. First I thought this must be my NEMA outlet, so I switch the connector to a regular household 120V connector, same solid red light same error message. I'm now stuck with either a bad charging cable, or the actual charge unit in the car itself is faulty. Calling Tesla service center now to schedule a visit.

My 60 kWh MS, 3200 miles, stopped charging at 150 miles twice in the last 2 weeks. No obvious issue with the UMC, 1 green light and solid dark blue at charge port. Taking in tomorrow.

I plugged my charger into 120V & the port turned red & would not take a charge. I checked the polarity of the 120 outlet & it was reversed. Changed the polarity & it works fine.

Interesting Yonak. I have the same problem with my 120V. I'll have to check its wiring.

Got to the service center around noon, tech confirmed it wasn't the cables as he tried a different cable to charge my MS but it still reads "unable to charge, unplug and try again" Looks like the cars needs some more diagnostic, leaving the car there for the day with a P85 service loaner. Will update once I hear back.

What was the verdict?

I am having the same issue on my 60.

I had the same issue soon after I got the car. Mine was a faulty cable. Swapped out the cable and everything has been great since.

I had this problem but like @sccrendo mine was confirmed by the service center to be a bad mobile connector rig that they swapped out for me.

any updates on this issue? my model s says unable to charge unplug and try again today as well. nothing changed on my end. same charger cable at my house with no reason for it not to work today :-(
.

unplugged and reinserted. went from solid blue to flashing green to solid red. dashboard still says unable to charge / charging problem. two numbers to the right say 29/30 (fluctuating between 29/30 and 30/30) and 237 (fluctuating between 235 & 238). tks for any insight...

Lean hard on the plug? Make sure there's no salt dust on the contacts?

I also had the red light on the charge port recently. My UMC was bad and in need of replacement.

I believe the SC indicated that on my UMC, the green light close to where it plugs into the wall (you know, the one that animates when charging) was not green either. So maybe look at that as a clue to the UMC's condition.

plugged it in again last night. woke up today and it was fully charged!?! didnt do anything different. no idea why it worked now but glad it did :-). thanks for input.

@BreeVanDeKamp - Sometimes all you need to do is to give the plug a good shove into the charge port.

Listen to a small click sound for the car to lock into the port. Wait a few seconds to verify that the port changes color from white to blue (schedule charging later) or to green (if charging immediately).

OK , just happened again. “Charging Cable Fault” check cable and power source.
I have a S60 and from the comments it seems this is restricted to S60’s.
Does any one with an 85 have the same problem?

I did. My S85 would not charge above 30 amps without a fault. SC replaced the charger; UMC was
OK.

The Devon SC already did that, ten days later started to get the faults again, and yes the most I can get is 26 amp’s

i am currently on my third cable and have also replaced the charging adapter port. Seems like a common problem

Not looking forward to having to change the cable every other month.
Is it really a cable problem or a programming fault. My 60 charges but just
displays the error / fault. Is it just five or six of us that have the problem or are their
hundreds our there?

Vin 77xx, 16 months, 41500 miles. Have had my charging cable changed out 3 times. 1 st 2 early on, 3 rd time not sure it was necessary. Had my master charger changed out at 6 months 12500 miles. Nothing since. Put this down to early adopter problems.

Having the same issue on my 85 Signature. At home it charges fine whereas at my in-laws & their neighbours it doesn't charge at all...just get a message that there is a fault on the cable and cable has 4 red blinks cycle. They live approx 250 km away so I had to find the nearest Supercharger which luckily was only 60 km away. Charged full up and then drove home. At home again it charged as normal....same Ampere and Voltage on all outlets...
Any ideas? Don't want to get stuck somewhere without being able to charge.

Having the same issue on my 2 month old 85. Started to happen last week, just after I was updated from 5.11 to 5.12. Charging from nema 14-50, within a few minutes I receive the same error and amps get reduced from 40 to 30. The SC pulled the logs and said it most likely is the main charger. Scheduled to go in next Friday.

@vespadirk. Which cable are you using at home. If it is the same as the one you used at your in laws most likely it's something with their wiring at home. If it's a different charging cable then it could be the cable

The system is very sensitive to wiring. Last week, I charged in the garage of my sister's underground garage, in a regular 110 volt NEMA 5-15 receptacle. The top receptacle produced a blue fault light and a refusal to charge. The bottom receptacle charged just fine.

Blue is not a fault. It means the car is communicating.
Red is a fault.

The car will not charge on a 110 with GFI.
Faults can also be caused by something else running on the circuit.

I have a 110 outlet tester that I use to check outlets before I plug in. They are cheap and handy.

Didn't SamO have a problem that was determined to be caused by the power company's equipment outside the house and the power company fixed the issue?

Hi, @Captain_Zap: Blue is a fault if it just stays there. If it hasn't finished communicating in 15 minutes, something is wrong.

I was being literal about the indicator's message. Red is an electrical fault. Yellow is improperly inserted plug. Blue is communicating, evaluating and attempting a handshake.

@Captain_Zap: I guessed that was what you meant. I didn't communicate in my original post that it wasn't just a momentary blue but blue for 15 minutes before I gave up.

@Captain_Zap: "The car will not charge on a 110 with GFI."

I have a 110 (20 amp; NEMA 5-20) with GFI in my garage and it works just fine. I use this outlet when I am leaving for a long period of time and want to keep the Tesla plugged in and the charge topped up. I have also tested this outlet by letting the charge level in the Tesla drop to a point such that it needed to pull the full 4 amps for 10 hours or so, and it worked without a hitch.

This particular 110 circuit is an individual circuit; it is not shared with any other outlet.

Correction to above: I meant to say 4 mph (16 amp) instead of 4 amp...

Isn't it code that garage 120 outlets are mandated to have GFCI?


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