The answer to 'EV charger installation not working' is that there are several common causes, including improper wiring, circuit breaker issues, and compatibility problems with the electrical panel. Symptoms may include the charger not powering on, error messages, or the vehicle not charging as expected.
First, check the circuit breaker to ensure it is the correct size and not tripped. Next, verify the wiring was installed properly according to local electrical codes. The charger also needs to be compatible with your home's electrical system, so double-check the specifications. If you're unsure about any of these steps, it's best to call a licensed electrician to diagnose and resolve the issue.