Many people think power surges only happen during lightning storms. Although lightning is one cause, it’s far from the only one. Utility grid activity, restoring power after outages and large household appliances cycling can all create voltage spikes inside your home. 

These surges don’t just threaten televisions and computers. They may also cause HVAC electrical damage because today’s 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 major repairs. 

What Is a Power Surge  

A power surge is a brief spike in electrical voltage that travels through your home’s wiring. Although it lasts only a fraction of a second, it still can damage home electronics. 

Lightning is the most well-known cause, but many surges happen 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 AC units 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. 

Though a single significant surge can cause immediate damage, smaller, repeated voltage spikes can slowly wear down HVAC components over time, limiting their lifespan. 

Why Modern HVAC Systems Are More Vulnerable Than Ever 

Many of today’s heating and cooling systems use sophisticated electronics to improve comfort and energy efficiency. While these features offer many benefits, they can make equipment more vulnerable to damage from voltage spikes, highlighting the importance of HVAC electrical protection. 

Some of the most vulnerable components to power surges include: 

  • Control boards. These act 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 vulnerable to electric surges. 
  • Smart thermostats. A smart thermostat uses delicate electronics that automatically adjust your HVAC equipment. 
  • Electronic communication systems. Many newer heating and air conditioning systems use electronic communication between indoor and outdoor units for efficient operation. 
  • Inverter technology. Variable-capacity HVAC systems use sophisticated electronics that are better protected with surge protection. 

Which HVAC Components Need the Most Protection? 

Damage from electrical surges can cost hundreds or even more to repair or replace. Installing whole-home surge protection helps minimize the risk of unexpected failures and major HVAC repair after voltage spike incidents. 

HVAC components most commonly affected by power surges in Lexington include: 

  • Control boards:The HVAC system’s control board contains essential operating controls, which can be badly damaged by surges. 
  • Compressors. The compressor is one of the highest-priced parts of an air conditioner or heat pump to replace. 
  • Blower motors.Electrical surges can damage motors responsible for circulating conditioned air throughout your home. 
  • Capacitors. Electrical surges can weaken or damage these components, reducing system startup and performance. 
  • Smartthermostats. Electronic thermostats can malfunction after frequent voltage spikes. 
  • Heat pumpelectronics. Modern heat pumps use multiple electronic components which are vulnerable to surges. 

Whole-Home Surge Protection vs. Power Strips 

Homeowners commonly use surge-protecting power strips for computers and televisions, but those devices don’t protect your HVAC system. To provide complete HVAC system protection, whole-home surge protection offers greater coverage and lasting value. 

A professionally installed whole-home surge protector is set up right at your home’s electrical panel. Instead of regulating electricity to only one outlet, the system helps safeguard major appliances and electronics throughout your entire house, including your HVAC equipment. 

Benefits of Whole-House Surge Protection 

Using whole-home surge protection is a smart 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. Preventing surge damage can help prevent expensive HVAC repairs. 
  • Extended HVAC system lifespan. Sensitive components experience less electrical stress over time when equipped with surge protection. 
  • Protection of homeelectronics. In addition to protecting your HVAC, a whole-home surge protector also safeguards appliances, computers and entertainment systems. 
  • Less stress during storms. Surge protection provides added confidence when weather-related power outages occur. 
  • Protectionagainst everyday electrical fluctuations. Minor electrical surges can gradually damage your HVAC system. 

5 Signs You May Need Surge Protection 

  1. Severe weather. Given the strong summer storms in Lexington, lightning protection for your HVAC can help minimize the risk of power surge damage. 
  2. Frequent power outages or flickering lights. Frequent outages and voltage fluctuations increase the likelihood of electrical surges. 
  3. Older electrical systems. Old wiring or substandard electrical equipment can increase your home’s surge risk. 
  4. Expensive HVAC equipment. Shielding 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 technology. Homes with Wi-Fi thermostats and other connected devices have additional sensitive electronics to protect. 

 

Professional Surge Protection Installation Matters 

Whole-house surge protection must be properly installed to provide reliable protection. Choosing licensed HVAC and electrical professionals like the team at James Heating & A/C, Inc helps make sure the surge protection device is properly installed and ready to protect your home HVAC system. 

The skilled professionals at James Heating & A/C, Inc understand the unique electrical needs of modern HVAC equipment and will recommend the right surge protector for your air conditioning unit, 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 an effective way to help prevent expensive repairs, extend equipment life and improve the reliability of your HVAC system. 

If you’re ready to learn more about AC or furnace surge protection, you can count on the team at . Our HVAC services include comprehensive surge protection options, including whole-house surge protectors. Our professionals will assess your home’s needs and suggest a setup to protect your home HVAC. Along with surge protection, we provide all electrical services for the rest of your home. 

Find out how surge protection can help protect your HVAC equipment. Schedule service online or call 336-853-6070 today. 

Frequently Asked Questions About Whole-Home Surge protection for HVAC 

Absolutely. Whole-house 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, and it helps extend the life of your home comfort system.

It can. A power surge can damage your AC unit’s compressor, circuit board and blower motor, leading to costly repairs. Installing AC surge protection can protect your air conditioner from power surges by preventing the surges from reaching sensitive HVAC components.

The most common sources of power surges include lightning strikes, utility grid switching, power outages, power restoration and large appliances cycling on and off. Power surges may also stem from problems within your home’s electrical system. Repeated minor power surges can gradually wear down HVAC components over time.

A whole-house surge protector usually lasts 5 to 10 years, although actual service life depends on the number and severity of the surges it absorbs. Surge protector systems in homes that experience many severe storms or utility power fluctuations may need replacement sooner.

It depends. Homeowners insurance can cover power surge damage, but coverage depends on your policy and the cause of the surge. With policy limits and deductibles varying, surge protection installation is often a smart way to protect your pocketbook from expensive HVAC repairs.

Yes. Power surge protection for HVAC helps protect smart thermostats and other connected HVAC components from damaging voltage spikes. It can also improve system performance and reduce the risk of extensive repairs to your home’s heating and cooling equipment.