Truck consistently resetting charging to 10 amps

[Indy avocado]

The past few days I have woken up to the truck barely recharged - after further analysis, it seems that the truck is defaulting to 10A on my Rivian L2 charger for scheduled charges. I can get in the truck and manually increase the rate back to 32A, force charging, and it will hold that for an hour no problem.

Has anyone else experienced this?
Should I perform an infotainment reset? Vehicle reset? Charger reset? Contact Rivian support?

Does the truck automatically reduce current if it senses low voltage?

I'll try some more troubleshooting tonight.

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[Raghu]

Sleep reset will fix this
Turn off phone connection ,gear guard and all lights for 30 minutes.
Increase the amp and charge.
This will fix

 

[Marchin_MTB]

That has never happened on our truck. If it is consistent I’d contact support and/or submit a service ticket. Does it happen on all L2 chargers or just the one at home?

 

[Indy avocado]

That has never happened on our truck. If it is consistent I’d contact support and/or submit a service ticket. Does it happen on all L2 chargers or just the one at home?

I haven't had a chance to charge at any other locations. I might try my travel charger today.

 

[HighVoltOverland]

Did you set the dip switches right on the charger?
Are there any other loads on the circuit?
Are you near capacity on your Main breaker?

 

[Indy avocado]

Did you set the dip switches right on the charger?
Are there any other loads on the circuit?
Are you near capacity on your Main breaker?

Yes, dip switches set correctly (40A). Cycled power to the EVSE (left off for 30s).

Dedicated 50A breaker for EVSE.

We should be nowhere near maxing out our 200A service given we have gas stove/furnace/water heater/dryer.

 

[Indy avocado]

Captured a video of weird behavior when I got home last night. The charging current limit would change on its own, walking down from 32A to whatever it felt like. It would "fight" me if I tried to change it. In the first ~30s of the video:



I called Rivian and they had me reset the truck and do a longer reset on the charger. It seems to be stable (for now). They are going to call back on Monday to make sure. Very good customer service.

 

[emoore]

This is interesting, mine has been resetting to 16A in the truck. I have manually moved it back to 48A (have the charger on a 60A circuit). If it does it again I'm going to leave it at 16A and see if the charging is actually limited to that. This didn't happen until the most recent update.

 

[Riviot]

Thankfully I noticed before our road trip mine was set up 17amps (?) after the latest software update. I bumped it up to 48amps and it's been steady since.

 

[Indy avocado]

Video visibility fixed. Sorry.

 

[Riv_Ian]

I called Rivian and they had me reset the truck and do a longer reset on the charger. It seems to be stable (for now). They are going to call back on Monday to make sure. Very good customer service.

Which form of reset did they have you perform on the truck?

I didn't know the charger could be reset (if it's something different from flipping the breaker).

 

[Indy avocado]

I had typed up a more specific description and then while uploading that video my phone lost it all

The charger was just a 1 minute breaker reset.
The truck was the "full" soft reset (left button+hazards for 15 seconds).

 

[Lucanjo]

This happened to mine, the EVSE team needs to push an update out to the charger. Call support, they will ask for pictures of your setup (dip switches, circuit breaker, etc).

 

[Indy avocado]

I'm curious if it has anything to do with my EVSE not displaying relevant voltage/current information...

 

[Lucanjo]

Honestly I think some EVSE is defective, at least the dip switches are broken on some units. When my electrician first installed mine he couldn’t get a 60 amp breaker so he installed a 50amp. It was charging at around 13 amps. I called Rivian Abe they asked for pictures of everything, including the 50 amp breaker and the dip switches in “40 amp” mode. After the pictures I set it back to the default (48 amp mode). They pushed an update and after a reboot it was charging at 40 amps (even though the dip switches were set to full 48). Fast forward a couple of weeks and my electrician came back and swapped out the breaker for the 60 amp. I had to call again, take a picture to confirm I had a 60amp breaker (didn’t touch the dip switches - they were already set to 48 amps) and they pushed another updated so now I have the full 48 amps.

My suspicion is that my EVSE doesn’t care what the dip switch is set to and it needs to be manually set via a sw config change that rivian service pushes over the air.

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