"Charging interrupted" at 99%, repeatedly.

That's what it seems like, my regular and repeatable problems started a little over a month ago. Today's repeated test was a top-up last night, left plugged-in, no cabin conditioning before this morning's departure, and no issues. I'm plugged in now and fully charged, and will initiate conditioning in the morning before leaving. If it pops up the error, I'll try disabling the Grizzl-e's wifi for a few tests cycles.

 

This morning's test was conclusive enough, pinning down behavior, but not yet the cause. Started cabin pre-con from just outside the car right before leaving, the cluster showed the red "unable to charge" error and 100%, which dropped to 99% within a few seconds. Next test will be a different EVSE, probably Sunday morning.

 

Initial test with the BMW Flexible Fast Charger (FFC). Sigh. Everything went without a hitch. Charged to 100% yesterday afternoon, left plugged in. Called for cabin pre-conditioning a half hour before departure, and got to a toasty car that was showing 100% and no check control messages. I'll repeat the test tomorrow, then likely contact United Chargers for guidance.

 

Yup, I'll try it as a "dumb" EVSE before chatting with support.

 

And there we go, Grizzl-e worked fine as a dumb EVSE. Charged from 72 to 100%, then later called up cabin conditioning and ran it for 20 minutes, car remains at 100% with no messages. Will do a wifi reset and check my firewall and PiHole, then try again.

 

Ok, I need clarification here. Resetting the wifi has disconnected the Smart from ChargeLab. I do not want to connect to ChargeLab, but I want to keep the unit online for any OTA firmware updates it might get. Must I connect to ChargeLab to actually get it online? Ran pre-con for a while (unplugged) to eat some juice and will charge again with reset wifi connected. Fingers crossed!

 

Sigh

 

Filed a ticket with United Chargers, including the following note:

 

Mine was made before their cutoff date, so they want $150 plus shipping both ways. I'm not impressed.

 

The ChargeLab TSR has been looped into my ticket, and reported back to the Grizzl-e TSR that she'd downloaded a snapshot of my EVSE's signal strength reports and events.


Waiting for Grizzly-e to follow up now.

 

Lol, OK, it's not all in my head.

https://www.minif56.com/threads/preconditioning-cabin-when-cold.95933/post-898430

 

I'm plugged in right now and at 100%. I'll initiate and report back. I think I was half asleep Friday morning and called for cabin precon and didn't notice any errors but maybe I didn't do that; it was mild on Friday and my garage was warm so I don't remember the car being particularly toasty.

 

Update: initiated preconditioning with the car plugged in and fully charged (solid green light). I let it run 25 minutes and went to the garage: the compressor was cycling normally, and the green light was flashing, indicating it was drawing juice from the mains. Unplugged, sat in the car and started up: 100% and no errors or check control messages, and the HVAC switched from Comfort Climate mode to Automatic. I shut down and plugged back in, the light began its flashing-blue "handshake" signal without switching to either green signal. I just picked up my phone and this is the Lock Screen: