When your circuit breaker starts to make funny noises, and you smell something funny from it, you need to turn your power off because there is a problem, and if you leave your power on, your electrical system could cause many problems. You don't want that to happen, so you need to figure something out. You need to call an emergency electrician to come to your house and get your circuit breaker working again. Why should you hire an electrician to deal with your malfunctioning circuit breaker?
The number one reason to only turn off the power and wait for the electrician to get to your house is safety. It's safer to not mess with electricity if you aren't familiar with it. It will also be safer because you are eliminating the risk of fire. The electrician is going to be familiar with working with electricity and will have the appropriate equipment to deal with it. That can include things like rubber-handled tools that won't conduct electricity that might hurt the electrician if they accidentally complete a circuit.
Becoming a licensed electrician isn't an easy process. A lot of schooling and training goes into it. And to get licensed, the electrician has to pass tests at the state level. All that means that the electrician coming to your house for the emergency will have the skills and knowledge to diagnose the problem. Once they figure out the problem, they can fix it. For example, the electrician can come and check out your circuit breaker and determine that you need a new one. That will involve several steps, including talking to your power company.
Another reason to wait for an electrician is that they will have connections to the people who can help them fix your circuit breaker. The power to your house will need to be turned off, so your electrician will want to call someone at the power company to turn off your power at the pole so that there is no risk of anyone getting hurt while the work is being done.
If you see sparks, hear electrical crackling, or smell burning, you need to turn off your power and call an emergency electrician. Those are all signs that you have problems with your electrical system, and that's not anything you want to mess with.
Contact an emergency electrician in your area for more information.