Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Unable to charge..disconnect cable and retry...then goes away

Hookemhorns

Member
May 8, 2016
123
53
Georgia
2016 MS. When charging at home lately, when I plug in the UMC cable the dash pops up with a warning "Unable to charge. Disconnect Cable and Retry"

If I wait about 3 seconds, the warning goes away, and charging completes with no further issues. This has been going on for a couple of months now. I have tried blowing out the port and cable with compressed air.

Any suggestions/comments?
 

aerodyne

Active Member
Nov 19, 2018
2,551
2,276
Los Angeles
With the car off, and the MC disconnected, use a dry "Q"tip or equal to clean the contacts.

I found a surprising amount of dirt on a one year old MC, strapped to my garage ceiling, never moved.
 

cookie99

Member
Mar 14, 2016
903
450
California
2016 MS. When charging at home lately, when I plug in the UMC cable the dash pops up with a warning "Unable to charge. Disconnect Cable and Retry"

If I wait about 3 seconds, the warning goes away, and charging completes with no further issues. This has been going on for a couple of months now. I have tried blowing out the port and cable with compressed air.

Any suggestions/comments?

I have this issue too! I also have another somewhat related issue, a few times (very rare) my charger will stop charging and require me to plug and unplug to continue. could be annoying if its at a public lvl2 charger which requires me to physically go back to the car, or when its in the middle of the night -_-
 

TMeister

Gearhead
Oct 6, 2016
272
374
Boise, ID
This can be caused by a delay in the EVSE coming on-line when plugged into the car. The car expects it faster than it happens. Listen for the relay in the EVSE to close quickly or not. My open EVSE box goes into a "must reboot" state after a long time idle. When I plug it into the car in that state the re-boot of the EVSE causes the car to complain just as described but then it picks up from there as soon as the relay closes.
 

Hookemhorns

Member
May 8, 2016
123
53
Georgia
TMeister - good hins. But my relay is closing almost immediately; they about 2 seconds later the error message pops up for about 2-3 seconds, then all seems well.
 

JzCastle

Member
Aug 22, 2017
46
116
Helsinki, Finland
This a software bug and has been on-going for about 2-3 months.

I have it myself and while I had another appointment, this was diagnosed at Tesla SC. Unfortunately it is (just) a bit annoying and still happening for me. There is a discussion about it here at TMC and quite many people have the same "problem" - although despite of the message there is nothing more to it.

"This is a firmware related issue and will be fixed in future firmware updates."

teslacharging.jpg
 

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top