The answer to 'my EV charger installation won't turn on' is that there could be several common causes, such as a tripped circuit breaker, a faulty wiring connection, or an issue with the charger itself. Symptoms may include the charger not powering on at all or displaying error lights or codes.
If the charger isn't turning on, first check your circuit breaker to ensure it hasn't tripped. Reset the breaker and try powering on the charger again. If that doesn't work, inspect the wiring connections to the charger to make sure they are secure and undamaged. You may also want to check the charger's display for any error messages that could point to a specific issue. If you can't resolve the problem yourself, it's best to call a licensed electrician to diagnose and repair the issue.