Many homeowners think power surges are limited to lightning storms. While lightning is definitely one cause, it’s far from 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 today’s heating and cooling systems rely on highly sensitive electronic components. The good news is HVAC surge protection can help protect one of your home’s biggest investments and reduce the risk of expensive repairs. 

What Is a Power Surge  

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

Lightning remains 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 voltage can also spike when electricity is restored after an outage. Major appliances like refrigerators or air conditioners can also create minor voltage fluctuations when they cycle on and off. In some cases, loose wiring or other home electrical issues lead to surges. 

Though a single significant surge can cause immediate damage, repeated minor surges can slowly wear down HVAC components over time, shortening their lifespan. 

Why Modern HVAC Systems Require Better Surge Protection 

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

Some of the most vulnerable components to power surges include: 

  • Electronic circuit boards. They function as the system’s control center and can be damaged by even very small voltage spikes. 
  • Variable-speed motors. These advanced 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. 
  • HVAC system communication controls. Many newer heating and air conditioning systems use electronic communication between indoor and outdoor units for energy-efficient operation. 
  • Variable-capacity inverter technology. Variable-capacity HVAC systems use sophisticated electronics that benefit from surge protection. 

Which HVAC Components Are Most Vulnerable to Power Surges? 

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

HVAC components most vulnerable to power surges in Cottonwood & Verde Valley include: 

  • Control boards:Installing a whole-house surge protector protects your HVAC control board’s main. 
  • Airconditioner compressors. An HVAC 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. 
  • HVACcapacitors. Power surges may weaken or damage these components, affecting system startup and performance. 
  • Thermostats and Smart Home Technology. A smart thermostat can malfunction after frequent voltage spikes. 
  • Heat pump control electronics. Heat pumps rely on 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 these plug-in devices don’t protect your furnace or air conditioner. For complete HVAC system protection, whole-home surge protection offers broader coverage and long-term value. 

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

Benefits of Whole-Home Surge Protection 

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

Benefits of whole-house HVAC surge protection include: 

  • Lower repair expenses. Reducing surge damage can help prevent expensive HVAC repairs. 
  • Extended HVAC system lifespan. Electronic HVAC 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. 
  • Added confidence during severe weather. Surge protection provides added confidence when severe storms strike your area. 
  • Protection from everyday electrical fluctuations. Minor electrical surges can gradually damage electronic HVAC equipment. 

5 Signs You May Need Surge Protection 

  1. Severe weather. Given the frequent summer storms in Cottonwood & Verde Valley, lightning protection for your HVAC can help minimize the risk of electrical surge damage. 
  2. Power outages or flickering lights. Ongoing power interruptions and changing voltage levels increase the likelihood of power surges. 
  3. Aging electrical systems. Old wiring or obsolete electrical equipment can increase your home’s surge risk. 
  4. Modern heating and cooling equipment. Safeguarding a high-efficiency heating and cooling system by installing whole-home surge protection 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 even more sensitive electronics to protect. 

 

Professional Surge Protection Installation Makes a Difference 

Whole-home surge protection must be properly installed to provide consistent protection. Hiring licensed HVAC and electrical professionals like the team at Connolly Electric & Mechanical helps confirm the surge protection device is properly installed and ready to protect your home HVAC system. 

The skilled professionals at Connolly Electric & Mechanical understand the specific electrical needs of modern HVAC equipment and will identify the right surge protector for your AC, furnace and other home comfort systems. 

Protect Your HVAC Investment with Whole-Home Surge Protection 

Voltage spikes aren’t always obvious, but they can have a major impact on your HVAC equipment. Investing in whole-home surge protection is an effective way to help prevent major 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 a variety of surge protection options, including whole-home protection. Our professionals will assess your home’s needs and suggest a setup to protect your home HVAC. Along with 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 928-862-5977 today. 

Frequently Asked Questions About HVAC Surge Protection 

Absolutely. 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 HVAC components, and it helps extend the life of your home comfort system.

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

Power surges are most commonly caused by lightning strikes, utility grid switching, power outages, power restoration and large appliances cycling on and off. Another possible cause is problems within your home’s electrical system. Even small, repeated surges can gradually wear down HVAC components over time.

Most whole-home surge protectors last 5 to 10 years, although actual service life depends on the number and severity of the surges it absorbs. Surge protector systems in a home that has frequent storms or utility power fluctuations may require replacement sooner.

It can. Homeowners insurance can 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 a smart way to help prevent 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 costly repairs to home heating and cooling equipment.