Homeowners often think power surges occur only during lightning storms. While 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 power surges inside your home. 

These surges don’t just damage televisions and computers. They may also cause HVAC electrical damage because today’s heating and cooling systems rely on sophisticated electronic components. Thankfully, 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 home 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 can damage electronic components. 

Many people know lightning is the most well-known cause, but many electrical surges begin much closer to home. Electric utility providers routinely switch power on the electrical grid, and power can also surge when electricity is restored after an outage. Major appliances like refrigerators or HVAC systems can also create small voltage fluctuations when they cycle on and off. Sometimes, loose wiring or other home electrical issues contribute to surges. 

Although one major power surge can cause immediate damage, repeated minor surges can slowly wear down heating and cooling equipment over time, limiting their lifespan. 

Why Modern HVAC Systems Require Better Surge Protection 

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

HVAC parts that are especially sensitive to power surges include: 

  • Control boards. They serve as the system’s control center and can be damaged by even very small voltage spikes. 
  • Energy-efficient variable-speed motors. These energy-saving motors rely on electronic controls that are vulnerable to electric surges. 
  • Smart thermostats. A smart thermostat uses delicate electronics that communicate with your HVAC equipment. 
  • Electronic 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 use sophisticated electronics that are better protected with surge protection. 

Which HVAC Components Are Most Vulnerable to Power Surges? 

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

HVAC components that are frequently damaged by power surges in Florissant and St. Charles include: 

  • Control boards:Protecting your HVAC system’s control board safeguards its primary. 
  • HVAC compressors. This component is one of the most expensive parts of an air conditioner or heat pump to replace. 
  • Blower motors.Power surges can damage motors that circulate conditioned air throughout your home. 
  • HVACcapacitors. Power surges may weaken or damage these components, affecting system startup and performance. 
  • Thermostats and Smart Home Technology. Electronic thermostats can malfunction after multiple voltage spikes. 
  • Heat pumpelectronics. Modern heat pumps use multiple electronic components which are vulnerable to surges. 

Whole-Home Surge Protection vs. Power Strips 

Many homeowners use surge-protecting power strips for computers and televisions, but these plug-in devices don’t protect your HVAC system. For HVAC system protection, whole-home surge protection offers more comprehensive 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, it helps safeguard major appliances and electronics throughout the house, including your HVAC system. 

Benefits of Whole-Home 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-house HVAC surge protection include: 

  • Lower repair expenses. Preventing surge damage can help prevent expensive HVAC repairs. 
  • Longer-lasting HVAC equipment. Sensitive components experience reduced electrical stress over time when protected correctly. 
  • Home electronics protection. In addition to protecting your HVAC, a whole-home surge protector also helps protect appliances, computers and entertainment systems. 
  • Added confidence during severe weather. Surge protection provides added confidence when weather-related power outages occur. 
  • Protection from everyday electrical fluctuations. Minor electrical surges can gradually damage electronic HVAC equipment. 

5 Signs It’s Time to Consider Surge Protection 

  1. Regular summer storms. Given the strong summer storms in Florissant and St. Charles, lightning protection for your HVAC can help lower the risk of electrical surge damage. 
  2. Frequent power outages or flickering lights. Ongoing power interruptions and electrical fluctuations increase the likelihood of damaging voltage spikes. 
  3. Outdated home wiring. Old wiring or obsolete electrical equipment can increase your home’s surge risk. 
  4. High-efficiency HVAC equipment. Safeguarding 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 smart thermostats and other connected devices have more sensitive electronics to protect. 

 

Why Professional Surge Protection Installation Makes a Difference 

Home HVAC surge protection must be professionally installed to provide dependable protection. Hiring licensed HVAC and electrical professionals like the team at B&B Heating, Cooling, Plumbing & Electrical helps make sure the surge protection device is properly installed and ready to help protect your home HVAC system. 

The highly trained professionals at B&B Heating, Cooling, Plumbing & Electrical understand the specific electrical needs of modern HVAC equipment and will identify the right surge protector for your air conditioner, 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 system. Investing in whole-home surge protection is a smart way to help prevent costly 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 variety of surge protection options, including whole-house surge protectors. Our professionals will evaluate your home’s needs and help you choose a customized solution to protect your home HVAC. In addition to surge protection, we offer all electrical services for the rest of your home. 

See how surge protection can help protect your HVAC equipment. Schedule service online or call 314-668-8530 today. 

Frequently Asked Questions About Whole-Home Surge protection for HVAC 

Yes. Installing 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 furnace or air conditioner components, helping extend the life of your home comfort system.

It can. A power surge can damage an air conditioning compressor, circuit board and blower motor, which can cause costly repairs. A surge protector for your AC helps protect your air conditioner from power surges by shielding the 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. Small voltage spikes can gradually wear down HVAC components over time.

A whole-house surge protector usually lasts 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 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.

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