Frustrated! Cannot charge by 23 MME

[Ringo]

I got a Tesla already before took my 23 MME Premium with Extended battery, so I have the hardwTesla Wall Connector already in my garage. So I bought a TeslaTap Mini adapter and it did its job for the first 5 months. But then it cannot charge leaving the charging circle orange on MME. Ok, I tried the Lextron one which also did its job for the first 3 weeks, then the same issue happened. Anyway I have a new Tesla Universal Wall Connector and it did charge the MME with its built in magic adapter in the first few days, but now the MME cannot charge when plugged in but leaving no blue or orange circle at all. MME just shows "charging station not detected". What's wrong with my MME? I don't change any settings in both wall connectors before and after the failure.

I can still use the Ford Mobile EVSE (Level 1) to charge but you know the speed not justify and I can use the Level 2 and DC fast charging at other charging stations.

What's wrong with my MME? If it doesn't compatible with the Tesla Wall Connector or Universal Wall Connector at all, it should not charge from the very beginnings. Right?

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[TheVirtualTim]

Do you recall the amperage limit on your TeslaTap adapter and also what amperage is your charging station using?

I'm wondering if you have had some arcing on the charge port pins. If electrical conductors become blackened it will result in an increase in resistance and also generates heat.

 

[Ringo]

Teslatap mini 80amp
Lectron Tesla to J1772 EV Adapter | 250V | 40 Amp
The breaker I am using is 30Amp, output 24 Amp (strata required)

Charge port pins in my MME?

 

[B177y]

Uh oh, sounds like mine....

https://www.macheforum.com/site/threads/stopped-recognizing-when-any-charger-is-plugged-in.32070/

https://www.macheforum.com/site/threads/charging-port-backordered-unknown-time-to-restock.32254/

 

[AKgrampy]

If it is working at other L2 EVSE’s then I would think something is going on with your L2 EVSE at home and not with the car. If other L2 locations were having charging issues then I would suspect the car. Just my thought.

 

[Ringo]

If it is working at other L2 EVSE’s then I would think something is going on with your L2 EVSE at home and not with the car. If other L2 locations were having charging issues then I would suspect the car. Just my thought.

It partially makes sense.
If it was my EVSE issue, why it can charge at the first few months for the Tesla Wall Connector with either Teslatap mini and Lextron adapter; and first few days with the Tesla Universal Wall Connector, BUT not working anymore?

 

[Mach1E]

It partially makes sense.
If it was my EVSE issue, why it can charge at the first few months for the Tesla Wall Connector with either Teslatap mini and Lextron adapter; and first few days with the Tesla Universal Wall Connector, BUT not working anymore?

Process of elimination?

Do you have a friends house with 220 setup where you can try charging there?

If L2 and L3 charging work on the road, it’s probably not your car, but you need more data to be sure.

It could be the wiring at your house?

I had a common wire issue (that the power company fixed). The symptoms were very minor at first (flickering lights). But eventually my microwave went on the fritz and it killed my stove.

Internet googling figured out it could be the common wire and the power company confirmed and fixed.

 

[ARK]

Agree with other people OP, you gotta try L2 charging somewhere else to see if you might have an issue with your EVSE or home electrical wiring.

 

[JohnFoxeSheets]

Sorry this is happening. I can certainly see why it would be frustrating.

I agree with @Mach1E: your car still charges at other L2 and DCFC locations so it's unlikely to be your car. You've changed L2 chargers at home (went from a Tesla Wall Connector to a Tesla Universal Wall Connector) and so it's unlikely to be the either of the Tesla EVSEs. But you say, "The breaker I am using is 30Amp, output 24 Amp (strata required)" and that sounds odd to me. I'm not sure what you mean by "strata required"...? Do you mean you are using the Tesla EVSE to limit the output to the car? While that shouldn't cause an issue, perhaps it is doing something weird. Have you connected Tesla to see if they have any suggestions? The problem seems to be consistent with their EVSEs. Also, have you checked to see if there are any firmware updates for them?

Best of luck. I hope you can solve the problem soon! And I wish for you and your family that you have happy holidays in spite of this issue.

 

[luckie]

It partially makes sense.
If it was my EVSE issue, why it can charge at the first few months for the Tesla Wall Connector with either Teslatap mini and Lextron adapter; and first few days with the Tesla Universal Wall Connector, BUT not working anymore?

Just check(?) if your new Tesla EVSE is not in the mode where it will only charge teslas. I did not believe this was possible, or even existed, up until recently but turns out somehow apparently is a real thing.

 

[Mach-Lee]

It partially makes sense.
If it was my EVSE issue, why it can charge at the first few months for the Tesla Wall Connector with either Teslatap mini and Lextron adapter; and first few days with the Tesla Universal Wall Connector, BUT not working anymore?

Check the wall connector settings and make sure it’s not set to charge “only Teslas”. A software update may have changed the setting.

 

[Ringo]

Sorry this is happening. I can certainly see why it would be frustrating.

I agree with @Mach1E: your car still charges at other L2 and DCFC locations so it's unlikely to be your car. You've changed L2 chargers at home (went from a Tesla Wall Connector to a Tesla Universal Wall Connector) and so it's unlikely to be the either of the Tesla EVSEs. But you say, "The breaker I am using is 30Amp, output 24 Amp (strata required)" and that sounds odd to me. I'm not sure what you mean by "strata required"...? Do you mean you are using the Tesla EVSE to limit the output to the car? While that shouldn't cause an issue, perhaps it is doing something weird. Have you connected Tesla to see if they have any suggestions? The problem seems to be consistent with their EVSEs. Also, have you checked to see if there are any firmware updates for them?

Best of luck. I hope you can solve the problem soon! And I wish for you and your family that you have happy holidays in spite of this issue.

Yes...it's really weird for my case.
To sum up:
1) The management company requires me to have a plug share device sharing the loading between the EVSE and Dryer and limited to 24 amp with the original 30 amp breaker. When the EVSE will stop charging when the dryer is on. When the dryer is off, the EVSE resumes charging.

2) Tesla Wall Connector with TeslaTap mini 80, worked for 5 months, but not more

3) Tesla Wall Connector with Lectron J1772 adapter, worked for few weeks

4) Tesla Universal Wall Connector, worked for few days, not working anymore (no response at all, no blue or orange charging circle)

5) Ford mobile charger (Level 1) ok
(I don't have a NEMA outlet in garage, so haven't tried the 14-50 cable)

6) Both the Tesla Wall Connector and Universal Charger can charge my Tesla, without any issue. Since the EVSE is using the shared 30amp breaker, output is 24A which I can set and check in the Tesla amp as attached photo.

 

[Ringo]

Check the wall connector settings and make sure it’s not set to charge “only Teslas”. A software update may have changed the setting.

There are few options in the Tesla Wall Connector: 1) Only Tesla, 2) Only designated Tesla, 3) All EV, 4) All
EV compatible mode for better compatibility.

I tried both 3) and 4), the same issue

 

[Ringo]

The most weird thing is both Tesla Wall Connector with adapter AND the Tesla Universal Connector can charge at the beginning

 

[Mach-Lee]

There are few options in the Tesla Wall Connector: 1) Only Tesla, 2) Only designated Tesla, 3) All EV, 4) All
EV compatible mode for better compatibility.

I tried both 3) and 4), the same issue

I would try mode 4 since that is fixed j1772 without Tesla protocol first. Have you tried plugging in the MME while it is still on?

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