Many homeowners think power surges occur only during lightning storms. Although 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 power surges inside your home. 

These electric voltage spikes don’t just threaten televisions and computers. They can also cause HVAC electrical damage because modern heating and cooling systems rely on advanced electronic components. Thankfully, HVAC surge protection can help shield one of your home’s biggest investments and reduce the risk of major repairs. 

What Is a Power Surge  

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

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. Household appliances like refrigerators or air conditioners can also create small voltage fluctuations when they cycle on and off. It’s also possible that loose wiring or other home electrical issues lead to surges. 

Although one major power surge can cause immediate damage, repeated minor surges can slowly wear down heating and air conditioning systems 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. Although these technologies offer many benefits, they can also make equipment more sensitive to voltage spikes, increasing 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 brief or small voltage spikes. 
  • Variable-speed motors. These advanced motors rely on electronic controls that are sensitive to electric surges. 
  • Smart thermostats. Smart home devices are made with delicate electronics that automatically adjust your HVAC equipment. 
  • Communication systems. Today’s HVAC systems rely on electronic communication between indoor and outdoor units for reliable operation. 
  • Inverter-driven technology. Variable-capacity HVAC systems rely on sophisticated electronics that are better protected with surge protection. 

Which HVAC Components Are Most Vulnerable to Power Surges? 

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

HVAC components most commonly affected by power surges in South Beloit and Belvidere include: 

  • Control boards:The HVAC system’s control board contains essential operating controls, which can be badly damaged by surges. 
  • Airconditioner compressors. An HVAC compressor is one of the costliest parts of an air conditioner or heat pump to replace. 
  • Blower motors.Voltage spikes can damage motors responsible for circulating conditioned air throughout your home. 
  • HVAC system capacitors. Power surges may weaken or damage these components, impacting system startup and performance. 
  • Smartthermostats. Electronic thermostats can malfunction after repeated voltage spikes. 
  • Electronic heat pump components. Modern heat pumps use multiple electronic components that are particularly vulnerable to surges. 

Whole-Home Surge Protection vs. Power Strips 

Many homeowners use surge-protecting power strips for computers and televisions, but power strips don’t protect your heating and cooling system. For complete HVAC system protection, whole-home surge protection offers greater coverage and 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, it helps safeguard major appliances and electronics throughout your house, including your HVAC equipment. 

Benefits of Whole-Home Surge Protection 

Adding 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-house HVAC surge protection include: 

  • Fewer repair costs. Avoiding surge damage can help reduce expensive HVAC repairs. 
  • Longer HVAC equipmentlife. Sensitive components experience less electrical stress over time when protected correctly. 
  • Protection of homeelectronics. In addition to protecting your HVAC, whole-home surge protection also helps protect appliances, computers and entertainment systems. 
  • Greater peace of mind duringstorms. Homeowners gain added confidence when severe storms strike your area. 
  • Protection from everyday electrical fluctuations. Minor electrical surges can gradually damage your HVAC system. 

5 Signs You May Need Surge Protection 

  1. Regular summer storms. Given the strong summer storms in South Beloit and Belvidere, lightning protection for your HVAC can help lower the risk of power surge damage. 
  2. Frequent power outages or flickering lights. Repeated outages and changing voltage levels increase the likelihood of power surges. 
  3. Older electrical systems. Old wiring or outdated 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 connected thermostats and other connected devices have more sensitive electronics to protect. 

 

Expert Surge Protection Installation Matters 

Home HVAC surge protection must be professionally installed to provide reliable protection. Hiring licensed HVAC and electrical professionals like the team at Fleming Heating and Air Conditioning helps ensure the surge protection device is properly installed and ready to protect your home HVAC system. 

The highly trained professionals at Fleming Heating and Air Conditioning understand the specialized electrical needs of modern HVAC equipment and will recommend the right surge protector for your air conditioner, furnace and other home comfort systems. 

Protect Your HVAC Investment Before the Next Power Surge 

Power surges aren’t always obvious, but they can have a significant impact on your HVAC system. 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-home surge protection systems. Our professionals will assess your home’s needs and recommend a customized solution to protect your home HVAC. In addition to surge protection, we provide all electrical services for the rest of your home. 

Learn how surge protection can help protect your HVAC equipment. Schedule service online or call 877-765-2812 today. 

Frequently Asked Questions About HVAC Surge Protection 

Yes. Whole-house surge protection is often a smart investment because it helps protect expensive HVAC equipment. Installing surge protection is typically much lower than repairing or replacing damaged HVAC components, helping extend the life of your home comfort system.

Yes. A power surge can damage your AC unit’s compressor, circuit board and blower motor, resulting in expensive repairs. AC surge protection helps protect your air conditioner from electrical fluctuations by reducing the impact of voltage spikes before they reach 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. They can also result from problems within your home’s electrical system. Repeated minor power surges can gradually wear down HVAC components over time.

Most whole-home surge protectors last 5 to 10 years, although its lifespan 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.

In some cases, but not all. Homeowners insurance can cover power surge damage, but coverage depends on your policy and what caused the surge. Since coverage and deductibles differ, surge protection installation is often a smart way to avoid paying for preventable and expensive HVAC repairs.

It can. Power surge protection for HVAC helps shield smart thermostats and other connected HVAC components from electrical surges. Surge protection may also improve system reliability and reduce the risk of extensive repairs to home heating and cooling equipment.