The purpose of surge protectors is to protect televisions, computers, and other home electronics from damage caused by electrical spikes, such as lightning strikes, electrical surges, or shortages. Many homeowners forget to protect their largest appliance. Your air conditioner could be damaged if it doesn’t have surge protection. A power surge is a brief and sudden jolt of electricity into your home. Electrical circuits and appliances can be damaged by power surges. They can be caused by electrical storms, power outages, downed lines, power plant maintenance, faulty wiring, or wildlife in transformers. A surge protector reduces the damage to a home appliance by absorbing the high electrical spike. A power surge is a big deal for your system, whether it’s new or old. Acts of God are not covered by warranties when you buy a new system. Lightning-damaged air conditioners are not covered by warranties. Most homeowner insurance policies cover the damage, but it is difficult to prove that lightning caused it. New systems can be ruined by lightning. Keep your system protected throughout its life with surge protection. Multiple surges can shorten the equipment’s life if your system is not damaged by one surge. Surge protectors typically come with a damage warranty that covers some of the repair costs. If a surge protector takes a direct strike it will need to be replaced but it is better than replacing an air conditioner. During a storm, the best way to prevent HVAC damage is to turn the power off at the thermostat and circuit breaker.