Homeowners often think power surges occur only during lightning storms. While lightning is one cause, it’s certainly not the only one.  Major appliances turning on and off, electrical grid switching, power outages and restoration can all create voltage spikes inside your home. 

These electric voltage spikes don’t just pose a risk to televisions and computers. These surges can cause HVAC electrical damage because today’s heating and cooling systems rely on sophisticated 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 Is a Power Surge  

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

Lightning remains the most well-known cause, but many surges happen much closer to home. Utility companies regularly switch power on the electrical grid, and electrical surges also can happen when electricity is restored after an outage. Large 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. 

While a single large surge can cause immediate damage, repeated minor surges can slowly wear down HVAC components over time, limiting their lifespan. 

Why Modern HVAC Systems Need More Surge Protection Than Ever 

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, increasing the importance of HVAC electrical protection. 

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

  • Circuit boards. They serve as the system’s control center and can be damaged by even brief or small voltage spikes. 
  • Energy-efficient variable-speed motors. Variable speed motors rely on electronic controls that are sensitive to electric surges. 
  • Smart thermostats. Smart home devices are made with delicate electronics that control your HVAC equipment. 
  • HVAC system communication controls. Modern heating and cooling systems use electronic communication between indoor and outdoor units for efficient operation. 
  • Inverter technology. Variable-capacity HVAC systems rely on sophisticated electronics that work best with surge protection. 

Which HVAC Components Need the Most Protection? 

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

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

  • Control boards:Protecting your HVAC system’s control board safeguards its primary. 
  • Airconditioner 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. 
  • Thermostats and Smart Home Technology. A smart thermostat can malfunction after frequent voltage spikes. 
  • Electronic heat pump components. Heat pumps rely on 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 heating and cooling system. For complete HVAC system protection, whole-home surge protection offers broader coverage and lasting value. 

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

Benefits of Whole-Home Surge Protection 

Adding 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: 

  • Reduced repaircosts. Avoiding surge damage can help prevent expensive HVAC repairs. 
  • Longer HVAC equipmentlife. Electronic HVAC components experience lower electrical stress over time when protected correctly. 
  • Protection of homeelectronics. In addition to protecting your HVAC, a whole-home surge protector also helps protect appliances, computers and entertainment systems. 
  • Less stress during storms. Homeowners gain added confidence when weather-related power outages occur. 
  • Protection from everyday electrical fluctuations. Minor electrical surges can gradually damage your HVAC system. 

5 Signs You May Need Surge Protection 

  1. Frequent storms. Given the powerful summer storms in Frederick, lightning protection for your HVAC can help lower the risk of surge-related damage. 
  2. Frequent power outages or flickering lights. Frequent outages and electrical fluctuations increase the likelihood of damaging voltage spikes. 
  3. Outdated home wiring. Old wiring or substandard electrical equipment can add to your home’s surge risk. 
  4. High-efficiency HVAC equipment. Protecting a high-efficiency heating and cooling system with a surge protector is often far less costly than repairing or replacing damaged components. 
  5. Connected home technology. Homes with Wi-Fi thermostats and other connected devices have additional sensitive electronics to protect. 

 

Professional Surge Protection Installation Is Important 

Whole-home surge protection must be properly installed to provide reliable protection. Hiring licensed HVAC and electrical professionals like the team at May's Heating & Air helps make sure the surge protection device is properly installed and ready to safeguard your home HVAC system. 

The experienced professionals at May's Heating & Air understand the specialized electrical needs of modern HVAC equipment and will help you choose the right surge protector for your air conditioning unit, furnace and other home comfort systems. 

Protect Your HVAC Investment with Whole-Home Surge Protection 

Power surges aren’t always dramatic, but they can have a big impact on your HVAC system. Installing whole-home surge protection is an effective way to help prevent costly repairs, extend equipment life and improve the reliability of your HVAC system. 

If you’re interested in 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-house surge protectors. Our professionals will evaluate your home’s needs and help you choose a setup to protect your home HVAC. In addition to 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 301-834-1468 today. 

Frequently Asked Questions About Whole-Home Surge protection for HVAC 

Is a whole-house surge protection beneficial for an HVAC system? 

Yes. Installing whole-home surge protection is often worth the investment because it helps protect expensive HVAC equipment. Installing surge protection is typically much lower than repairing or replacing damaged furnace or air conditioner components, and it helps extend the life of your home comfort system. 

Can an electrical surge damage an air conditioner? 

Yes. A power surge can damage an air conditioner’s compressor, circuit board and blower motor, which can cause costly repairs. AC surge protection helps protect your air conditioner from electrical surges by reducing the impact of voltage spikes before they reach sensitive HVAC components. 

What can cause power surges in 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 homes that experience many severe storms or utility power fluctuations may require replacement sooner. 

Does homeowners insurance cover damage caused by power surges? 

It can. 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 a smart way to avoid paying for preventable and expensive HVAC repairs. 

Will a surge protector help protect smart thermostats? 

Absolutely. Power surge protection for HVAC helps safeguard smart thermostats and other connected HVAC components from power surges. It can also improve system longevity and reduce the risk of extensive repairs to home heating and cooling equipment.