The answer to 'which is better troubleshooting or' is that troubleshooting is generally more effective and cost-efficient than relying solely on replacement. Troubleshooting involves systematically identifying and resolving the root cause of an electrical issue, whereas replacement simply swaps out a component without addressing the underlying problem.
Troubleshooting allows you to diagnose and fix problems with your electrical system, saving you the cost of unnecessary component replacements. It also helps you better understand how your system works, empowering you to maintain it more effectively in the long run. However, there are some cases where replacement may be the better option, such as for outdated or heavily damaged components.