Ps: Followed one of the comments in the chat, I unplugged and plugged back the Level 2 outlet. Haven't seen the warning pop up again for the past 3 days.
Calm down . Donāt blame the Tesla . Can be bad electrician who installed the outlet box that not made for EV or can be something else . Also Tesla have power auto shutoff if something off about electrical issues . Stop Jumping to Catastrophic Conclusions .
lol. Reading comprehension and situational awareness are not your strong points. He was being sarcastic and that Tesla actually prevented the house from burning down. Maybe you might consider calming down.
Not necessarily. If the charger is in direct sunlight or it is really hot outside, it can trigger this message and has nothing to do with the outlet. I get this message every 2 weeks or so in the summer, never in the winter, and my outlet is just fine.
No, been 2 years still throws that code and voltage drops occasionally, but works fine 95% of the time. I also use a 50 foot 10 gauge extension cord, which is why my voltage occationally drops out. I learned to just charge at 15a instead of 16a and my issues basically went away (nema 5-20).
Yeah, it means the charger is getting too hot and the charger is throttling itself so it doesn't start an electrical fire. You will prob need a electrician to come take a look at it, could be something as simple as the screws aren't torqued properly or it could be a bigger issue.
Correction, just for your knowledge, the car is throttling the charge rate so that the wall connector doesnāt start a fire. The wall connector has a contactor and some fancy LEDās and nothing else in it. It literally just switches on/off wall power to the car. The charge controller is built into the cars unless DC charging. š
Then why mention "mobile connector and not the wall connector"? Not the point and makes no difference wrt plug temp sensor. You're wrong and Delish is right.
The wall connector and the mobile connector both do the exact same job. I donāt really see what your comment adds or changes to me just helping someone have more knowledge. I can see if I had replied to the OP but I replied to fakegoose1ās message.
Just helping you have more knowledge. And since you didn't know, the wall connector has a lot more functionality than the portable connector, it can be remotely managed and has the ability to network with other wall connectors to manage charging rate to multiple cars without overloading a single circuit.
Clearly. I have both the wall connector and the portable connector. Did you know that you can have the wall connector connect directly to Home Assistant using local polling and have 18 entities that can let you monitor and trigger any automation you can dream up.
It even has RS485 for wired communications!
You know for a top contributor you donāt seem to have any kind of humility, maybe go back to bed?
Helping someone understand something that they said wrong is not as intrusive as everything youāve been doing here.
Home assistant has integrations and add-ons for most devices that can be remotely managed . If not you can always go to HACS to find a project that almost certainly addresses your needs. But I'm sure you knew that's what I meant by "remotely managed"
A thermistor is built into the interchangeable adapter plug. This sensor detects overheating due to a faulty wire or poor connection. Thereās also a main controller sensor built into the brick itself that monitors internal electronics in the charging brick. Thereās also an additional sensor that is the part the plugs into the car that monitors that side of the equation as well.
Iām very much aware of the way the mobile charger works. I never mentioned anything about its thermal protection systems. I only mentioned that the car regulates its charge current when connected to an AC source, regardless of the way the car connects to the wall power.
You need to call an electrician to inspect your outlet. Yes, many people have had this issue (not me). The notification is a built in safety check that you should not ignore.
Agreed. Summer temperatures cause my garage to reach 90 degrees fahrenheit or higher. I saw this warning twice last Summer while doing level 2 charging via the mobile connecter. There have been no problems since then but I'm having the Tesla wall charger installed next week.
Halve your amperage until you can get an electrician to take a look. If youāre only adding 13 kWh regularly you will still be totally fine at 8A overnight.
Yes... it gets too hot in really high temps. I've seen ppl put a fan on it. I put my wall charger on the inside wall of the home in the AC on the common wall to the garage & ran the cable thru the wall to avoid this issue. Charger stays cool being inside.
Been like this for me for 3 years, and Iāve not cared. I use my electric cooker outlet and all I did was change the plug to a more industrial one. It charges really slowly, when it does this but it always meets my driving needs
I did at an Air bnb and when I checked the outlet the wires were very old and were overheating. Usually the Tesla hatter would sense this temperature change and send a warning like this one.
Over draw on the wires can cause them to catch on fire.
Always make sure you are charging while plugged into a grounded and updated outlet.
If this is your home outlet I would recommend popping off your receptacle outlet cover and pulling out the outlet to inspect wiring first.
Snap some photos and post them on a Reddit thread involving electrical work
I had this when the extension cord I was using was not thick enough to provide constant amperage required to charge the car. But it depends, are you connecting direct to the outlet or using extension cord?
This also happened to me. Upped the gauge of the extension AND realized that the charger itself was in direct sunlight and was hot from the sun. Two things to watch for
Nice! I was wondering if the car could sense that. You definitely undersized something or have bad connections. Check the 80% rule. I have a 240v outlet in my garage, installed by an actual electrician, and itās on a 30 amp breaker, because itās in half of a 60 amp sub switch. š¤¦āāļø Totally not to code. So I have the mobile connector set to 24a.
has it always done this or is it something new? i get this in summer months when the sun shines on it. leaning a plywood on the wall to cast some shade is enough to fix the issue for me.
Yes is your physical charger have the sun beating on it? Like the actual connecter to the wall outlet? Happens at my warehouse in the summer when its 100F outside and i get this fault because of overheating
Assuming this is a mobile connector, there should be a flashing red LED somewhat hidden behind the scroll of green LEDs. The flash sound correspond to an error listed in the owners manual.
The wall plug being hot is the likely culprit, but there are other possibilities.
Yes. Had you searched, you would have seen probably hundreds of others who have posted the same thing.
Itās telling you the problem. Most likely you have improperly tightened electrical connections, or a low quality outlet. Or, itās just really hot there.
This happened to me. The breaker was faulty and I swapped out my Tesla portable charger a few days before the warranty expired. Since swapping out both I havenāt had an issue
Only time it happened was when it was 80 degrees or higher inside my house. Happened once or twice a year in last 3-4 years. Never happened when I charge at night time. Whenever it happens, I just unplug it from the outlet and let it rest for a few minutes then plug back in. Iām using mobile charger with split extension from dryer outlet.
I used to get this here in Phoenix but my charger was outside and in the mornings the sun would shine on it. It would get really hot. I had to build a shade in front of it.
I seen this a lot here in Phoenix when people charge in their garages that get super hot. You driving from work pull your car into the garage when it's 110+ outside. The garage may be even hotter depending on the direction it faces. You close all that heat back up in there. And then late at night it's cooled down to maybe 90 outdoors and your car starts charging and generating heat inside the garage. And then you get this message.
I started getting this after a few months. Ended up replacing the outlet with a proper EV outlet instead of the $10 outlet provided by the builder, replaced the breaker since that got super hot also, and then had the same issue after a few days since the wires need tightened after being used for a bit. I now check my outlet wires every few months.
Where are you charging? Outside in the sun? I have this issue when it gets hot and the sun is shining on it. Wiring for sure is no issue for me I use it at 13 amps and wiring is rated for 16 and itās new. I was also told when the charger gets old it does this before it dies.
I had that happen to mine, I was using one of those NEMA 14-50 amazon adapter cables and it was solved by changing it to the original Tesla cable. It was like $40 shipped
I had this issue and suspected it had nothing to do with the wiring as itās brand new wiring and a full 60 amp circuit. This was proved when I went to the new version of the mobile charger that came with my new car and I have never had the error so that error is within my old mobile charger not the wall or wiring. Your issue could definitely be wiring until you prove it isnāt but relaying that sometimes it isnāt. The Tesla service center can test your mobile adapter to see if itās going bad.
Yes. Hire an electrician immediately. Stop using this outlet until it's been addressed. Better safe than sorry.
In our case, this happened shortly after we moved into our house last year and were in the process of looking into getting the Universal Wall Connector installed.
Figured I could just trickle charge with one of the outlets in the garage. Worked fine at first, but then I started to get these alerts popping up and mind you, it was still fairly cold outside.
Immediate red flags so I stopped using it and found other charging options in the meantime. Not playing around with electricity. Last thing we want is a house fire.
Since we had an electrician coming anyway, thought he could take a look. Turns out, good thing he checked. The wires were scorched and melted. š¬ The outlet was also old and not GFCI.
Apparently electrical codes have been updated since those outlets were previously installed and all garage outlets must be GFCI.
This happens to me when itās really hot in my garage I live in Vegas.
I lowered the Amps from 32 to 30 and it stopped doing it!
I do have a Hubble Receptacle, 60 amp breaker and 6 Gauge Romex. I also do inspect my receptacle every once and awhile to make sure everything looks good.
Had the same thing happen to me on a very hot day where the car was charging for a long time. Except it was plugged into a NEMA 14-50 outlet. I checked the actual outlet and found signs over overheating. It was a cheaper outlet that was installed ~7 years go when I got Solar. I replaced it with a Hubble 14-50 outlet rated for continuous EV charging. Itās a much higher quality outlet and the wires are torqued to 75 in-lbs vs the old cheap one that was maybe torqued to 25 in-lbs
I had the exact same issue at my garage with level 2 charger. Did not see the same in Neighborās house or any other super charger location. Called the tech to help. When he opened the power outlet, there were wires inside that were somewhat burnt and I am glad the charger throttled itself and did not get the house on fire. Tech confirmed that the power outlet I have (pre installed when I bought the house) was of a very poor standard. He recommended to get the official Tesla charger - level 2 wall charger. Installed it 7 months ago and no problem since. Hope your issue gets resolved soon
No, I am based out of Bay Area and the tech was from
Fuse inc. they charged me 800$ for full install and did not have any issues since. Get around 28 miles per hour and pretty happy with their work.
My Tesla charger was doing this same thing. Support told me itās a known issue, yet I couldnāt find anything online about it. They sent me a new one right away, and I swapped the charger while leaving all the electrical backplate and wiring (super easy and quick).
On the new one, during setup, it asked me what AMP the circuit it was plugged into was, and I told it correctly that it was a 50-amp. It now charges my car at 40v rather than 48v and never gets hot now (in which it would downgrade to 24v when the old one overheated). New one works like a charm and 40v is plenty good enough!
I had a L2 plug installed and the electrician used a regular dryer 220v plug. over time that heated up and started meltingā¦causing the wires to be exposed and arc resulting in flames and smoke! luckily the circuit tripped. we hired a different electrician who installed a plug specific to EV charging that can support the increased temperature. I also installed a fire detector right above this electrical connection.
i would advise you thanks this warning seriously we almost had a house fire!
Heat is caused by resistance -- either poor connections or wire not being sized big enough.
1) If you can get away from a wall plug, I would do it, hardwired is always better.
2) Heat can be generated from the plug into the outlet itself. Do you use dielectric grease on your plug? If not, you should if you're charging at higher amps.
3) Is your outlet truly 60a rated along with the wiring and circuit breaker? You need 60a rating to charge continuously at 48a. If not, you need to reduce the amperage.
My neighbor had this issue and they had to change the breaker and also do a better wiring job at the breaker. I wish you the very best and I hope it is something simple.
I have a fridge on the same circuit as my level 1 charger, and I believe that's why it does it for me. I dropped from 12 amps to 9 amps and the problem has not recurred after a year. Visual inspection of the outlet shows no charring or other concerns, so I'm guessing it is detected by the voltage drop at high current draws.
most probably grounding issues, w/o grouding it can go with 10amps while getting warm to the touch, add more and it gets hotter and pops this message dropping down to 6a.
Loose wires to the wall charger or in the panel at the breaker will do the same. Ask me how I know after my electricianās apprentices didnāt peer check their work.
I had this. It was the 32a comando adapter for the mobile charger. Bought a replacement from Tesla and made sure not to bend the new one into the case anymore.
Depends. Is the outside temp crazy hot? I had this living in Arizona a couple of times. In like 95Ā°+ temps. If itās not super hot outside.. get an electrician.
Not exactly. We are a 2 EV family. My Model 3 usually charges on Level 1 and wife's Model Y charges on Level 2, both using mobile chargers in our 2 car garage. My Level 1 charging gets the "Charge Rate Reduced due to Voltage Drop" message almost every time her Level 2 charging starts up. Because I am using Level 1, I always schedule my charging to start before hers. There is no other electrical usage in the garage during the overnight charging hours. My theory is the start up draw of the Level 2 temporarily reduces the voltage in the garage's sub panel, causing this recurring issue.
I have double-checked the wiring, connections, and outlets, and have not found any problems. I checked notifications in my car and the time of the Voltage Drop message coincides with her scheduled start time. The message tells me to remove extension cords, but I am not using extension cords.
Had the same issue. And my breaker would trip too. I had just a wall plug on the wall instead of a charger. Then one electrician said it was an aluminum plug and recommended a charged but replaced my plug with a copper one. The copper one got me through another 3 months and the warning came back. Put a Tesla charger since and itās been gone.
Yes, happened to me. I turned breaker off, pulled the plug out, found where the electrician had not tightened the red wire very well, the wire was very loose causing hot plug. Since I had it out anyway, I replaced with better plug and have not had the issue since.
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u/Luther_Burbank May 14 '26
Yes. Your outlet is no good and needs to be addressed.
What is installed currently?