Thanks Phil Apparently when raining or hot the negative temperature coefficient thermistor tells the uP (analog input drops when resistance drops) causes it to go into current fold back mode. The fix looks like coating the board with conformal coating to prevent moisture ingress (Tesla forgot to) and to put in a larger enclosure with a muffin fan (or reverse these global warming 100 degree days). Best regards Mark
Sent from my iPhone On Jul 21, 2023, at 12:55 AM, Phil Hochstetler <phil.hochstet...@gmail.com> wrote: I would try removing the wall side plug. It is possible over time for it to become partially unseated. Reseat it may fix the problem. Phil H. On Thu, Jul 20, 2023, 2:12 PM Mark Hanson via EV <ev@lists.evdl.org> wrote: > Hi folks > Does anyone know how to take apart a Tesla mobile charge controller? After > 65K miles charging it dropped to 16A, initially only when the sun shined on > it (heated internal thermistor), but now it’s all the time. It may be fuzzy > relay contacts. I’ve seen small charge controllers like open EVSE.com have > similar issues, clean contacts, then ok. Great god Google shows a guy > breaking the glue seal destroying it to get apart - which will leave me with > a 0 amp charge controller :-) > Best regards > Mark > > Sent from my iPhone > _______________________________________________ > Address messages to ev@lists.evdl.org > No other addresses in TO and CC fields > HELP: http://www.evdl.org/help/ > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20230721/77d2391b/attachment.htm> _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
