The biggest bugbear I have is that my car seems to refuse to
schedule charge at anything other than 16A, since they flicked the "you didn't pay for dual charging" switch at Tesla HQ
I have the same problem Simon, and Tesla are aware of it as a problem in the software.
(FWIW I am on firmware version 1.65.15, but it's apparently not fixed, in even the latest version 1.67.125)
The symptoms are:
If you charge manually from within the car, you can push it to 30A (so chargers work, etc)
If you schedule it to charge
within 30 mins of you leaving the car, it will charge at the last remembered charge (i.e. 30A)*
If you schedule it to charge after
over 30 mins after leaving the car (or manually start a charge remotely via the phone app) it will charge at 16A
(Once it starts to charge at 16A it will remember that and from then on will remember to only charge at 16A, even if starting manually from inside the car, so you have to keep pushing it up)
To me, it sounds like some type of timeout, where it starts up charger A and ramps up to the 16A, then asks for charger B, but times out waiting for it and so stays at 16A.
When you are in the car, it takes less time to start charger B and so works (although you can see it limited to 16A to start with, then after a few seconds goes up to 30A (or if set at 16A shows the small font notice that there is 30A available))
It would be worth contacting support, if only to give them another set of logs to examine, another data point to add - and some additional pressure to get it fixed!
* This means that the instructions that Tesla first provided to resolve this appeared to work because the scheduled charge was within 5 minutes, but they actually failed for longer term schedules.
I've listed them below in case they work for you:
- Ensure the vehicle is off charge and cable is disconnected from vehicle.
- Change the charge setting so the vehicle on a non-scheduled charge.
- Check the charge rate setting is set to 30A, if not correct the setting to 30A using the current control function.
- Connect the vehicle and allow to charge for a MINIMUM of 60 seconds before disconnection. (Confirm that vehicle is charging at 30A)
- Disconnect Charge lead.
- Set a scheduled charge within the next 5 minutes.
- Reconnect charge lead.
- Now the 30A charge rate has been set please reiterate to customer that the current setting must not be altered (Up or Down).
- Confirm that charge rate is now at desired setting of 30A.
- If all OK, then please ask customer to set their preferred scheduled charge time if not run through again one more time.
- From now the vehicle should remain charging at 30A, as long as the current setting is not changed.