Homeowners often think power surges only happen during lightning storms. While lightning is one cause, it isn’t the only one. Utility grid activity, restoring power after outages and large household appliances cycling can all create voltage spikes inside your home.
These surges don’t just damage televisions and computers. They can also cause HVAC electrical damage because current 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 major repairs.
What Is a Power Surge
A power surge in your home is a brief spike in electrical voltage that travels through your home’s wiring. Although it lasts only a fraction of a second, it may damage electronic components.
Many people know lightning is the most well-known cause, but power surges often occur 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. Household appliances like refrigerators or AC units can also create minor voltage fluctuations when they cycle on and off. It’s also possible that loose wiring or other home electrical issues contribute 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 Are More Vulnerable Than Ever
Today’s heating and cooling systems use high-tech electronics to improve comfort and energy efficiency. While these features offer many benefits, they can also make equipment more at risk of damage from voltage spikes, highlighting the importance of HVAC electrical protection.
HVAC parts that are especially sensitive to power surges include:
- Control boards. These act as the system’s control center and can be damaged by even very small voltage spikes.
- Energy-efficient variable-speed motors. These advanced motors rely on electronic controls that are vulnerable to electric surges.
- Smart thermostats. Smart home devices are made with delicate electronics that automatically adjust your HVAC equipment.
- Electronic communication systems. Many newer heating and air conditioning systems use electronic communication between indoor and outdoor units for efficient operation.
- Inverter-driven technology. Variable-capacity HVAC systems use sophisticated electronics that are better protected with surge protection.
Which HVAC Components Are Most at Risk?
Damage from power 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 expensive HVAC repair after electrical surge incidents.
HVAC components most commonly affected by power surges in Cottonwood & Verde Valley 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 costliest 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 multiple voltage spikes.
- Heat pumpelectronics. Heat pumps rely on multiple electronic components that can be vulnerable to surges.
Which is Better for My Home: Whole-Home Surge Protection or Power Strips?
Homeowners commonly use surge-protecting power strips for computers and televisions, but those devices don’t protect your HVAC system. To provide complete HVAC system protection, whole-home surge protection offers greater coverage and greater long-term value.
A professionally installed whole-home surge protector is connected at your home’s electrical panel. Rather than protecting only one outlet, it can help safeguard major appliances and electronics throughout your entire house, including your heating and cooling equipment.
Benefits of Whole-House Surge Protection
Adding 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:
- Fewer repair costs. Reducing surge damage can help avoid expensive HVAC repairs.
- Longer HVAC equipmentlife. Electronic HVAC components experience reduced electrical stress over time when properly protected.
- Home electronics protection. In addition to protecting your HVAC, a whole-house surge protector also helps protect appliances, computers and entertainment systems.
- Less stress during storms. Surge protection provides added confidence when weather-related power outages occur.
- Protectionagainst everyday electrical fluctuations. Small voltage spikes can gradually damage your HVAC system.
5 Signs You May Need Surge Protection
- Severe weather. Given the frequent summer storms in Cottonwood & Verde Valley, lightning protection for your HVAC can help lower the risk of electrical surge damage.
- Power outages or flickering lights. Repeated outages and electrical fluctuations increase the likelihood of power surges.
- Outdated home wiring. Old wiring or obsolete electrical equipment can add to your home’s surge risk.
- High-efficiency HVAC 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.
- Smart home technology. Homes with Wi-Fi thermostats and other connected devices have even more sensitive electronics to protect.
Professional Surge Protection Installation Is Important
Whole-home surge protection must be installed correctly to provide consistent protection. Choosing licensed HVAC and electrical professionals like the team at Connolly Electric & Mechanical helps ensure the surge protection device is properly installed and ready to help protect your home HVAC system.
The skilled professionals at Connolly Electric & Mechanical 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 from Future Power Surges
Power surges aren’t always obvious, but they can have a significant impact on your HVAC system. Installing whole-home surge protection is a smart 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 a wide variety of surge protection options, including whole-home surge protection systems. 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 928-862-5977 today.
Frequently Asked Questions About Whole-Home Surge protection for HVAC
Is whole-home surge protection worth it for an HVAC system?
Yes. Whole-home surge protection is often worth the investment because it helps protect expensive HVAC equipment. The cost of installing surge protection is typically much lower than repairing or replacing damaged HVAC components, which can help extend the life of your home comfort system.
Can an electrical surge damage an air conditioner?
Absolutely. A power surge can damage an air conditioning compressor, circuit board and blower motor, which can cause expensive repairs. Installing AC surge protection can protect your air conditioner from power surges by reducing the impact of voltage spikes before they reach sensitive HVAC components.
What causes power surges inside a home?
Power surges are most commonly caused by 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. Even small, repeated surges can gradually wear down HVAC components over time.
How long does a whole-home surge protector last?
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 properties that experience frequent storms or utility power fluctuations may require replacement sooner.
Does homeowners’ insurance cover power surge damage?
It can. 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 cost-effective way to protect your pocketbook from expensive HVAC repairs.
Does surge protection help protect smart thermostats?
It can. Power surge protection for HVAC helps safeguard smart thermostats and other connected HVAC components from power surges. It can also improve system performance and reduce the risk of extensive repairs to your home’s heating and cooling equipment.
