Now it doesn`t like my 3 phase charger

[forest 172]

At work I have a Rolec 22kw 3 phase charger. Charged it about 4 times now no problems. I get 3 x 16amp and charge at 44 m/ph

Yesterday I plugged it in and tried everything under the sun, regarding turning things off and on etc etc

But all I get is voltage too high and it goes from flashing green on the car to red within 20 secs. The amps never register and the voltage just goes up and down to about 250ish

Took the car home and with the 3 pin no problem

The only thing I have thought is the car had 185 miles in it, so only needed a 2 hour top up on the 3 phase

 

[Mr H]

Your first port of call is to try a public charger to eliminate the car, there have been reports of faulty Rolec chargers. Do you know anyone else that could try your work charger?

 

[forest 172]

Your first port of call is to try a public charger to eliminate the car, there have been reports of faulty Rolec chargers. Do you know anyone else that could try your work charger?

yes friend has the same car, also sparky who installed it coming Monday

The voltage too high doesn`t seem an issue at all when you google it

 

[Mr H]

i presume your car is pulling 11kw as that is all it can do

 

[forest 172]

i presume your car is pulling 11kw as that is all it can do

yes the first 4 chargers all at 44m/ph / 11kw / 3 x 16amp

I was confused at first until I started googling

 

[Mr H]

If it's ok on 3 pin then the AC-DC converter in the penthouse is working, i'd bet on a faulty Rolec. If you can find a public 22kw AC charger then i'd certainly give it a go.

 

[Fly.guy]

Were your previous successful charges before lockdown when your workplace was ‘working’ ?

it’s quite possible that the normal load generated by your workplace is sufficient to drag down the local voltage to within the ‘acceptable’ range.

Without that load, and possibly on a sunny day with lots of local PV production, the voltage has climbed above the maximum that the onboard electronics in your car will accept.

Maybe try when it’s not sunny or if you can, switch on a big electricity load within your workplace before you start to charge. If it’s marginal, the power pulled by your car once it’s started charging may be enough to then keep the voltage within limits.

 

[forest 172]

I did both had machinery on and/off. I`m going round to my mates later and putting the car on a rolec 7kw and I`ll use my lead. Eliminate that

 

[forest 172]

Were your previous successful charges before lockdown when your workplace was ‘working’ ?

it’s quite possible that the normal load generated by your workplace is sufficient to drag down the local voltage to within the ‘acceptable’ range.

Without that load, and possibly on a sunny day with lots of local PV production, the voltage has climbed above the maximum that the onboard electronics in your car will accept.

Maybe try when it’s not sunny or if you can, switch on a big electricity load within your workplace before you start to charge. If it’s marginal, the power pulled by your car once it’s started charging may be enough to then keep the voltage within limits.

friends Rolec 7kw charger works fine on my car with my lead. Will try again Monday at work like you say I’ll fire up the compressor at the same time

 

[forest 172]

Update

Sparky been this morning. 3 feeds going in 237v / 239v / 243v

Car refuses the charger again today. The voltage shoots upto 300V on the screen for a split second, and then the car refuses the charge

 

[MrBadger]

I think you need to try a third party 3 phase charger, ie 11kW. Tesla destination chargers often are and added benefit is that it is all Tesla kit and bypassing your type 2. That will point the finger at either the car or the charger/your type 2 cable. I wonder if there is a 3 phase issue causing 400v or so? @arg?

 

[booyaka76]

As above - you need to "elimiate" each piece of the puzzle first.....

Try a different cable if you can
Try another 3 phased charger if you can
Get someone else to use the work place charger and see if they have issues.

Without all the information - Tesla will just say it's a faulty charger. I had to eliminate lots of things before I could prove it was the car that was my issue (DC charging was fine, AC charging was the issue) - subsequently fixed by Tesla.

 

[Jason71]

What sort of Tesla are we talking about?

 

[forest 172]

model 3 performance

my friends bringing their M3P around on Wednesday. Which will help

 

[forest 172]

another Tesla model 3 and a different lead, same problem!!!!

Rolec haven`t even bothered to answer my email yet from Monday morning

 

[Mr H]

Another faulty Rolec, how surprising

 

[MrBadger]

The newer green breaker Rolecs are pretty robust - no evidence that they are less reliable than other brands. Different story with the earlier blue breaker ones though.

 

[forest 172]

they`re saying it`s the car or the cables

Just had to say again, we`ve plugged 2 cars in and used 2 different cables. The Voltage going in is correct. What else can it be?!

Retailer got involved now

 

[MrBadger]

Broken neutral fault?

 

[forest 172]

another spark coming to double check on saturday