Frequent charging error at home

[Prit]

Over the last 3 months, I’ve been getting a frequent charging error at home almost every time I plug in. It charges for a bit but then later I see the error when I check the app or the car. This didn’t happen before and started happening just before I did the big update, and is still happening.

I also noticed that my power bill increased significantly over the last three months (around when this started happening).

Has anyone had this happen? If so, what do you think is causing it? I have had the car since January and this began about 3 months ago.

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[W1NGE]

Heat - has it got warmer - leading to a thermal issue during charging?

Have you tried the other charge port?

Have you tried to power cycle your EVSE?

 

[Prit]

Heat - has it got warmer - leading to a thermal issue during charging?

Have you tried the other charge port?

Have you tried to power cycle your EVSE?

This might be it. My garage gets hot (who’s doesn’t ) and the dates coincide with the summer months. I can say that this didn’t happen to my Tesla though so I’m curious if it will go away in the winter (cooler) months that are almost upon us.

 

[W1NGE]

This might be it. My garage gets hot (who’s doesn’t ) and the dates coincide with the summer months. I can say that this didn’t happen to my Tesla though so I’m curious if it will go away in the winter (cooler) months that are almost upon us.

The cabling may be thin too (if PMC+ or PMCC) which heats up too. Seems to be an issue in US.

 

[Bill33525]

There are other threads on this subject. Try going to 50% if you can spare the extra time to charge.
Your dealer may provide a better wire if reportinng the errors.

 

[02bluesuperroo]

What EVSE are you using?

 

[XLR82XS]

There are other threads on this subject. Try going to 50% if you can spare the extra time to charge.
Your dealer may provide a better wire if reportinng the errors.

This is it. My charger will overheat when set at 100% during summer S. Florida months. I set the charger to 50% and no problems. Will switch it back to 100% come Sept./Oct.

 

[02bluesuperroo]

Based on saying your electric bill went way up, I would suspect there is some issue in the wiring of the EVSE or charger that is causing excessive electrical resistance. Have you noticed any extra heat or are you charging outside? Be aware that this could be a fire hazard.

 

[Windpower]

Over the last 3 months, I’ve been getting a frequent charging error at home almost every time I plug in. It charges for a bit but then later I see the error when I check the app or the car. This didn’t happen before and started happening just before I did the big update, and is still happening.

What EVSE are you using?

You need to specify the EVSE you're using. Each one has its own design and you might be caught with a 'bad' EVSE. If you are using the Porsche EVSE, then there are many threads on how these EVSEs are fundamentally flawed and could either shut off (which is what I used to see before I replaced it) or reduce the power to 50%.

 

[Prit]

You need to specify the EVSE you're using. Each one has its own design and you might be caught with a 'bad' EVSE. If you are using the Porsche EVSE, then there are many threads on how these EVSEs are fundamentally flawed and could either shut off (which is what I used to see before I replaced it) or reduce the power to 50%.

Sorry, I missed this. I’m using the basic one that came with the car. The non-wifi model.

 

[satchurator]

Sorry, I missed this. I’m using the basic one that came with the car. The non-wifi model.

That’s the PMC+, so the overheating comments do apply. Try running at 50%.

Regarding your electricity bill - are you certain that your bill is higher than spring and summer of 2021? Might just be seasonal change. You could look at your charging history and do the math for your electricity tariffs to account for how much your cost increase has been due to charging.

 

[Hirschaj]

My PMC+ is in for service right now due to this issue. I’ll report back what the service department tells me after I hear something.

 

[Prit]

That’s the PMC+, so the overheating comments do apply. Try running at 50%.

Regarding your electricity bill - are you certain that your bill is higher than spring and summer of 2021? Might just be seasonal change. You could look at your charging history and do the math for your electricity tariffs to account for how much your cost increase has been due to charging.

I could look at my usage for the same period last year. This would remove any change in cost per KWh. My habits haven’t changed per se (or perhaps marginally). I had a Tesla Model Y Performance before the Taycan so that’s why this huge jump in my bill is surprising. It could be that the rate changed, which I will double check. In any case, I think I need to adjust the charger settings and maybe try to get s replacement.

 

[Bill33525]

I could look at my usage for the same period last year. This would remove any change in cost per KWh. My habits haven’t changed per se (or perhaps marginally). I had a Tesla Model Y Performance before the Taycan so that’s why this huge jump in my bill is surprising. It could be that the rate changed, which I will double check. In any case, I think I need to adjust the charger settings and maybe try to get s replacement.

Your electric bill may show a rolling year of usage. Many people have reported rate increases so check your bill to see if the usage is similar and/or the rate has recently increased.

 

[TXAG]

I could look at my usage for the same period last year. This would remove any change in cost per KWh. My habits haven’t changed per se (or perhaps marginally). I had a Tesla Model Y Performance before the Taycan so that’s why this huge jump in my bill is surprising. It could be that the rate changed, which I will double check. In any case, I think I need to adjust the charger settings and maybe try to get s replacement.

If your electricity comes from a plant powered by natural gas, I wouldn't be surprised if the rate skyrocketed recently. The price of natural gas has tripled from a year ago, and it's time the power companies passed along their costs to the consumers.

After one successful use, my PMC+ also cut out at a 100 percent charge rate during our hot Arizona summers (even with all cables uncoiled with a fan blowing on them). I've had the charge rate at 50 percent ever since.

Rather than tinker with timers, I built a little Excel sheet to help roughly estimate when to plug in my PMC+:

My off-peak electricity rate starts at 7 PM and ends at 3 PM the next day. So, if I'm at 40% SOC I can plug in at 10 PM, and my PB+ will be charged to 85% SOC at ~6:30 AM the next morning.

After a while, I said just forget all this and start charging shortly after 7:00 PM when the SOC is between 30% and 40%. The built-in profile will stop charging at 85% anyway.

Some folks have an alternative and equally valid approach: they plug in whenever and don't worry about finessing US$10 of electricity costs after paying over US$100k for a Taycan. Bottom line: do what works best for you.

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