Homeowners often think power surges are limited to lightning storms. While lightning is definitely one cause, it isn’t the only one. Utility switching, power outages/restoration and even large appliances cycling on and off can all create electrical surges inside your home. 

These electric voltage spikes don’t just threaten televisions and computers. They may also cause HVAC electrical damage because modern heating and cooling systems rely on advanced 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 Are Power Surges  

A home power surge is a brief spike in electrical voltage running through your home’s wiring. Even though it lasts only a fraction of a second, it may damage household electronics, including HVAC equipment. 

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 HVAC systems 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, smaller surges can slowly wear down heating and air conditioning systems over time, limiting their lifespan. 

Why Modern HVAC Systems Require Better Surge Protection 

Today’s heating and cooling systems use advanced electronics to improve comfort and energy efficiency. Even though hese advanced features offer many benefits, they can make equipment more at risk of damage from voltage spikes, highlighting the importance of HVAC electrical protection. 

Some of the most vulnerable components to power surges include: 

  • Control boards. They serve as the system’s control center and can be damaged by even minimal voltage spikes. 
  • Energy-efficient 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. 
  • HVAC system communication controls. Modern heating and cooling systems use electronic communication between indoor and outdoor units for energy-efficient operation. 
  • Inverter-driven technology. Systems with variable-capacity operation use sophisticated electronics that work best with surge protection. 

Which HVAC Components Need the Most Protection? 

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

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

  • Control boards:The HVAC system’s control board contains essential operating controls, which can be badly damaged by surges. 
  • Compressors. The compressor is one of the highest-priced 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. 
  • Capacitors. Electrical surges can weaken or damage these components, impacting system startup and performance. 
  • Smartthermostats. These devices may malfunction after repeated voltage spikes. 
  • Heat pumpelectronics. Heat pumps rely on multiple electronic components that are particularly vulnerable to surges. 

Comparing Whole-Home Surge Protection to Power Strips 

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

A professionally installed whole-house surge protector is located at your home’s electrical panel. Rather than protecting only one outlet, the system helps safeguard major appliances and electronics throughout your entire house, including your HVAC equipment. 

Benefits of Whole-Home Surge Protection 

Using whole-home surge protection is a proactive way to protect your HVAC investment while also working to safeguard other valuable electronics throughout your home. 

Benefits of whole-house HVAC surge protection include: 

  • Fewer repair costs. Preventing surge damage can help avoid expensive HVAC repairs. 
  • Extended HVAC system lifespan. Electronic HVAC components experience lower electrical stress over time when protected correctly. 
  • Protection of homeelectronics. In addition to protecting your HVAC, whole-home surge protection also safeguards appliances, computers and entertainment systems. 
  • Less stress during storms. You’ll have added confidence when severe weather strikes. 
  • Protection from 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 frequent summer storms in Mobile, lightning protection for your HVAC can help reduce the risk of electrical surge damage. 
  2. Power outages or flickering lights. Ongoing power interruptions and electrical fluctuations increase the likelihood of electrical surges. 
  3. Aging electrical systems. Old wiring or outdated electrical equipment can raise your home’s surge risk. 
  4. Expensive HVAC equipment. Safeguarding a high-efficiency heating and cooling system by installing whole-home surge protection is often less expensive than repairing or replacing damaged components. 
  5. Smart home technology. Homes with connected thermostats and other connected devices have additional sensitive electronics to protect. 

 

Why Professional Surge Protection Installation Is Important 

Home HVAC surge protection must be professionally installed to provide consistent protection. Working with licensed HVAC and electrical professionals like the team at Farnell Heating & Air Conditioning Inc helps make sure the surge protection device is properly installed and ready to safeguard your home HVAC system. 

The skilled professionals at Farnell Heating & Air Conditioning Inc understand the specific electrical needs of modern HVAC equipment and will recommend the right surge protector for your air conditioning unit, furnace and other home comfort systems. 

Protect Your HVAC Investment Before the Next Power Surge 

Electrical surges aren’t always obvious, but they can have a significant impact on your HVAC system. Adding whole-home surge protection is a proactive 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 comprehensive surge protection options, including whole-home protection. Our professionals will review your home’s needs and suggest a setup to protect your home HVAC. Along with surge protection, we provide all electrical services for the rest of your home. 

Find out how surge protection can help protect your HVAC equipment. Schedule service online or call 251-471-2674 today. 

Frequently Asked Questions About Whole-Home Surge protection for HVAC 

Yes. Installing whole-home surge protection is often worth the 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.

Absolutely. A power surge can damage an air conditioner’s compressor, circuit board and blower motor, resulting in expensive repairs. AC surge protection helps protect your air conditioner from power surges by shielding the 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. They can also result from problems within your home’s electrical system. Small voltage spikes 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 properties that experience frequent 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 cost-effective way to protect your pocketbook from expensive HVAC repairs.

Absolutely. Power surge protection for HVAC helps protect smart thermostats and other connected HVAC components from electrical surges. Surge protection may also improve system lifespan and reduce the risk of expensive repairs to your home’s heating and cooling equipment.