The answer to 'what size troubleshooting do I need' is that the size of troubleshooting required depends on the specific electrical issue you're experiencing. For minor problems like a tripped circuit breaker or a faulty outlet, basic troubleshooting steps may be enough. However, for more complex issues like wiring problems, electrical panel issues, or anything involving the main electrical service, it's best to call in a professional electrical technician.
Professional electricians have the training, tools, and expertise to properly diagnose and resolve electrical problems safely. They can inspect your entire electrical system, identify the root cause, and make any necessary repairs or upgrades to restore power and prevent future issues.