Many homeowners think power surges only happen during lightning storms. While lightning is definitely one cause, it’s certainly not the only one. Utility switching, power outages/restoration and even large appliances cycling on and off can all create power surges inside your home. 

These electrical surges don’t just damage televisions and computers. They may also cause HVAC electrical damage because current heating and cooling systems rely on advanced electronic components. The good news is HVAC surge protection can help protect one of your home’s biggest investments and reduce the risk of costly repairs. 

What Are Power Surges  

A power surge is a sudden spike in electrical voltage in your home’s wiring. Even though it lasts only a fraction of a second, it still can damage home electronics. 

Lightning remains the most well-known cause, but many electrical surges begin much closer to home. Power companies frequently adjust power on the electrical grid, and voltage can also spike when electricity is restored after an outage. Major appliances like refrigerators or HVAC systems can also create minor voltage fluctuations when they cycle on and off. It’s also possible that loose wiring or other home electrical issues contribute to surges. 

While a single large surge can cause immediate damage, smaller, repeated voltage spikes can slowly wear down heating and cooling equipment over time, shortening their lifespan. 

Why Modern HVAC Systems Require Better Surge Protection 

Today’s heating and cooling systems use high-tech electronics to improve comfort and energy efficiency. While these features offer many benefits, they also make equipment more vulnerable to damage from voltage spikes, increasing the importance of HVAC electrical protection. 

Some of the most at-risk HVAC components to power surges include: 

  • Circuit boards. They function as the system’s control center and can be damaged by even very small voltage spikes. 
  • Variable-speed blower motors. These energy-saving motors rely on electronic controls that are susceptible to electric surges. 
  • Smart thermostats. A smart thermostat uses delicate electronics that control your HVAC equipment. 
  • HVAC system communication controls. Many newer heating and air conditioning systems use electronic communication between indoor and outdoor units for reliable operation. 
  • Inverter technology. Systems with variable-capacity operation use sophisticated electronics that benefit from surge protection. 

Which HVAC Components Are Most Vulnerable to Power Surges? 

Damage from power surges can cost hundreds or even thousands of dollars to fix. Installing electrical surge protection helps lower the risk of unexpected failures and expensive HVAC repair after voltage spike incidents. 

HVAC components most vulnerable to power surges in North Charleston include: 

  • Control boards:Protecting your HVAC system’s control board safeguards its primary. 
  • Compressors. An HVAC compressor is one of the costliest parts of an air conditioner or heat pump to replace. 
  • Blower motors.Power surges can damage motors used to move conditioned air throughout your home. 
  • Capacitors. Surges can weaken or damage these components, affecting system startup and performance. 
  • Thermostats and Smart Home Technology. These devices may malfunction after multiple voltage spikes. 
  • Electronic heat pump components. Heat pump systems depend on multiple electronic components which are vulnerable to surges. 

Which is Better for My Home: Whole-Home Surge Protection or Power Strips? 

Many homeowners use surge-protecting power strips for computers and televisions, but power strips don’t protect your heating and cooling system. To provide complete HVAC system protection, whole-home surge protection offers greater coverage and greater long-term value. 

A professionally installed whole-home surge protector is connected at your home’s electrical panel. Unlike devices that protect only one outlet, the system helps safeguard major appliances and electronics throughout your house, including your heating and cooling equipment. 

Benefits of Whole-Home Surge Protection 

Using whole-home surge protection is a proactive way to protect your HVAC investment while helping safeguard other valuable electronics throughout your home. 

Benefits of whole-home HVAC surge protection include: 

  • Fewer repair costs. Reducing surge damage can help prevent expensive HVAC repairs. 
  • Extended HVAC system lifespan. Sensitive components experience reduced electrical stress over time when protected correctly. 
  • Protection of homeelectronics. In addition to protecting your HVAC, a whole-home surge protector also shields appliances, computers and entertainment systems. 
  • Less stress during storms. Homeowners gain added confidence when severe weather strikes. 
  • Defense against everyday electrical fluctuations. Minor electrical surges can gradually damage connected HVAC devices. 

5 Signs You May Need Surge Protection 

  1. Frequent storms. Given the powerful summer storms in North Charleston, lightning protection for your HVAC can help minimize the risk of surge-related damage. 
  2. Power outages or flickering lights. Repeated outages and voltage fluctuations increase the likelihood of damaging voltage spikes. 
  3. Older electrical systems. Old wiring or substandard electrical equipment can add to your home’s surge risk. 
  4. Modern heating and cooling equipment. Protecting a high-efficiency heating and cooling system by installing whole-home surge protection is often more affordable than repairing or replacing damaged components. 
  5. Smart home devices. Homes with smart thermostats and other connected devices have even more sensitive electronics to protect. 

 

Professional Surge Protection Installation Is Important 

Whole-home surge protection must be professionally installed to provide consistent protection. Choosing licensed HVAC and electrical professionals like the team at Olde Towne Heating & Air helps confirm the surge protection device is properly installed and ready to protect your home HVAC system. 

The experienced professionals at Olde Towne Heating & Air understand the specific electrical needs of modern HVAC equipment and will identify the right surge protector for your AC, furnace and other home comfort systems. 

Protect Your HVAC Investment Before the Next Power Surge 

Electrical surges aren’t always dramatic, but they can have a significant impact on your HVAC equipment. Adding whole-home surge protection is a proactive way to help prevent expensive repairs, extend equipment life and improve the reliability of your HVAC system. 

If you’re considering AC or furnace surge protection, you can count on the team at . Our HVAC services include a wide variety of surge protection options, including whole-home protection. Our professionals will evaluate your home’s needs and help you choose a setup to protect your home HVAC. Along with surge protection, we provide all electrical services for the rest of your home. 

See how surge protection can help safeguard your HVAC equipment. Schedule service online or call 843-806-2049 today. 

Frequently Asked Questions About HVAC Surge Protection 

Is HVAC surge protection a good investment? 

Yes. Whole-home surge protection is often a smart investment because it helps protect expensive HVAC equipment. Compared with repair costs, installing surge protection is typically much lower than repairing or replacing damaged heating and cooling components, helping extend the life of your home comfort system. 

Can an electrical surge damage an an air conditioning system? 

Absolutely. A power surge can damage an air conditioner’s compressor, circuit board and blower motor, which can cause costly repairs. A surge protector for your AC helps protect your air conditioner from electrical fluctuations by shielding the sensitive HVAC components. 

What are the common causes of power surges inside a home? 

Lightning strikes, utility grid switching and power outages are among the most common causes of power surges in homes. They can also result from problems within your home’s electrical system. Even small, repeated surges can gradually wear down HVAC components over time. 

How long does a whole-home surge protector last? 

Most whole-home surge protectors last 5 to 10 years, although that depends on the number and severity of the surges it absorbs. Surge protector systems in properties that experience frequent storms or utility power fluctuations may require replacement sooner. 

Does homeowners’ insurance cover power surge repairs? 

In some cases, but not all. Homeowners insurance sometimes cover power surge damage, but coverage depends on your policy and the reason for the surge. Because deductibles and coverage vary, surge protection installation is often cost-effective way to protect your pocketbook from expensive HVAC repairs. 

Can surge protection help protect smart thermostats? 

Yes. Power surge protection for HVAC helps protect smart thermostats and other connected HVAC components from power surges. It can also improve system reliability and reduce the risk of expensive repairs to home heating and cooling equipment.