I like this article, brings up some valid points, and should be adhered to particularly with government funded charger installations: https://www.trucknews.com/equipment/how-to-maintain-electric-vehicle-chargers/1003157831/ “Most organizations lack maintenance plans to maintain the dozens of hundreds of chargers they put into service,” Terreri said. 3 other key points: "Connectors should be inspected daily, but the cables themselves might deserve weekly checks. Every quarter someone on the team might want to clean the charging cabinet and check the charge cables and connectors for damage." "Unlike AC chargers, DC fast chargers also include air filters and coolant, he added. Outlet air filters can need to be replaced every two years, while inlet air filters might need to be swapped annually – at the same time coolant is checked and flushed." "Most charger-related challenges can be traced to the underlying networking software, which often comes from a different source than the charging infrastructure itself. “A network provider may not do full validation testing,” Terreri warned. Other issues can emerge between the network and firmware when charger manufacturers flash an update. It’s why he recommends keeping software updated, and ensuring that software providers have actually tested their offerings with your specific hardware."
