Homeowners often think power surges only happen during lightning storms. While lightning is one cause, it isn’t the only one.  Major appliances turning on and off, electrical grid switching, power outages and restoration can all create electrical surges 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 current 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 expensive repairs. 

What Is a Power Surge  

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

Lightning is the most well-known cause, but power surges often occur much closer to home. Power companies frequently adjust power on the electrical grid, and electrical surges also can happen 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 contribute to surges. 

Although one major power surge can cause immediate damage, smaller, repeated voltage spikes can slowly wear down heating and air conditioning systems over time, reducing their lifespan. 

Why Modern HVAC Systems Require Better Surge Protection 

Today’s heating and cooling systems use sophisticated electronics to improve comfort and energy efficiency. Although these technologies offer many benefits, they can also make equipment more sensitive to voltage spikes, highlighting the importance of HVAC electrical protection. 

Some of the most vulnerable components to power surges include: 

  • Control boards. They function as the system’s control center and can be damaged by even very small voltage spikes. 
  • Variable-speed motors. These energy-saving motors rely on electronic controls that are susceptible to electric surges. 
  • Smart thermostats. Smart home devices are made with delicate electronics that communicate with your HVAC equipment. 
  • Electronic communication systems. Many newer heating and air conditioning systems use electronic communication between indoor and outdoor units for reliable operation. 
  • Inverter-driven technology. Variable-capacity HVAC systems rely on sophisticated electronics that work best 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 lower the risk of unexpected failures and major HVAC repair after power surge incidents. 

HVAC components most vulnerable to power surges in Mankato area 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 highest-priced parts of an air conditioner or heat pump to replace. 
  • Blower motors.Power surges can damage motors that circulate conditioned air throughout your home. 
  • Capacitors. Electrical surges can weaken or damage these components, reducing system startup and performance. 
  • Smartthermostats. A smart thermostat can malfunction after frequent voltage spikes. 
  • Electronic heat pump components. Heat pump systems depend on multiple electronic components that are particularly vulnerable to surges. 

Comparing Whole-Home Surge Protection to Power Strips 

Many people use surge-protecting power strips for computers and televisions, but these plug-in devices don’t protect your HVAC system. To provide complete HVAC system protection, whole-home surge protection offers more comprehensive coverage and greater long-term value. 

A professionally installed whole-home surge protector is connected at your home’s electrical panel. Instead of regulating electricity to only one outlet, it can help safeguard major appliances and electronics throughout the house, including your HVAC equipment. 

Benefits of Whole-Home HVAC Surge Protection 

Installing whole-home surge protection is an effective way to protect your HVAC investment while also helping safeguard other valuable electronics throughout your home. 

Benefits of whole-home HVAC surge protection include: 

  • Lower repair expenses. Avoiding surge damage can help avoid expensive HVAC repairs. 
  • Extended HVAC system lifespan. vulnerable technological components experience less electrical stress over time when properly protected. 
  • Home electronics protection. In addition to protecting your HVAC, a whole-home surge protector also shields appliances, computers and entertainment systems. 
  • Added confidence during severe weather. You’ll have added confidence when weather-related power outages occur. 
  • Protectionagainst everyday electrical fluctuations. Minor electrical surges can gradually damage connected HVAC devices. 

5 Signs It’s Time to Consider Surge Protection 

  1. Severe weather. Given the powerful summer storms in Mankato area, lightning protection for your HVAC can help reduce the risk of electrical surge damage. 
  2. Frequent power outages or flickering lights. Frequent outages and electrical fluctuations increase the likelihood of electrical surges. 
  3. Outdated home wiring. Old wiring or outdated electrical equipment can raise your home’s surge risk. 
  4. High-efficiency HVAC equipment. Safeguarding a high-efficiency heating and cooling system with a surge protector is often less expensive than repairing or replacing damaged components. 
  5. Smart home devices. Homes with connected thermostats and other connected devices have additional sensitive electronics to protect. 

 

Expert Surge Protection Installation Is Important 

Whole-house surge protection must be properly installed to provide reliable protection. Working with licensed HVAC and electrical professionals like the team at Northern Comfort Inc helps confirm the surge protection device is properly installed and ready to protect your home HVAC system. 

The experienced professionals at Northern Comfort Inc understand the specialized 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 from Future Power Surges 

Voltage spikes aren’t always dramatic, but they can have a big impact on your HVAC equipment. Installing 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 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 evaluate your home’s needs and suggest a customized solution to protect your home HVAC. Beyond 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 507-387-6596 today. 

Frequently Asked Questions About Whole-Home Surge protection for HVAC 

Is whole-home surge protection worth it for an HVAC system? 

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

Can a sudden power spike damage an air conditioner? 

Absolutely. A power surge can damage an air conditioning compressor, circuit board and blower motor, leading to major repairs. A surge protector for your AC helps protect your air conditioner from power surges by preventing the surges from reaching sensitive HVAC components. 

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

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. 

What is the average lifespan of a whole-house surge protector? 

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. 

Does homeowners insurance cover power surge repairs? 

It can. Homeowners insurance may cover power surge damage, but coverage depends on your policy and the reason for the surge. With policy limits and deductibles varying, surge protection installation is often cost-effective way to avoid paying for preventable and expensive HVAC repairs. 

Can a surge protector help protect smart thermostats? 

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 costly repairs to home heating and cooling equipment.