The answer to 'how to replace surge protection' is to replace your home's surge protector on a regular basis, typically every 3-5 years or as recommended by the manufacturer. Surge protectors wear out over time and can no longer effectively protect your electronics and appliances from power surges and spikes. Replacing the surge protector is a simple DIY task, but it's important to follow safety precautions and turn off the power at the circuit breaker before working on the electrical system.
When replacing a surge protector, first locate the existing unit, which is often installed near the main electrical panel or a power outlet. Shut off the power, unplug the surge protector, and then remove it from the wall or outlet. Install the new surge protector in the same location, making sure the connections are secure. Turn the power back on and test the new surge protector to ensure it's working properly.