The answer to 'my fuse box won't turn on' is that a non-functioning fuse box is usually caused by a tripped circuit breaker or blown fuse. This can happen due to an overloaded circuit, a short circuit, or a faulty electrical component. Symptoms include lights or appliances not working, and the fuse box itself not turning on or resetting.
For a DIY solution, you can try resetting the circuit breakers or replacing any blown fuses. However, if the problem persists or you're unsure of the cause, it's best to call in a licensed electrician. They can diagnose the issue, make any necessary repairs, and ensure your electrical system is safe and up to code.