What HVAC Threats Are Most Prevalent?

February 18, 2021

While your HVAC system is designed for durability, certain factors can impair its performance and damage its components. Here are the biggest HVAC threats you should know of, along with what you can do to minimize them.

Extreme Weather

Your HVAC system can withstand normal weather conditions. However, severe conditions, such as floods, can do a number on it. Standing water can carry foreign debris into your outdoor unit and cause damage. You can avoid this by ensuring there's good drainage around the unit.

Lightning is another one of the HVAC threats that can affect your HVAC system's electrical components. Investing in a lightning rod will help protect your system if you live in a place that experiences lightning strikes frequently.

It's a good idea to power down your AC unit when extreme weather is forecast. Turn central AC units off at the circuit breaker and thermostat. Unplug window AC units.


When dirt is allowed to build up in your HVAC system, it can encrust the coils or accumulate in the compressor unit. These could accelerate wear and tear and increase your energy bills. Have an HVAC professional inspect and clean your HVAC system periodically to prevent dust from building up on the coils and in the compressor.


Drifting detritus that includes fallen leaves can clog up your HVAC system. Branches from trees growing near your outdoor unit can fall onto the unit and cause damage. Keep the trees near your unit trimmed. Leave at least two or three feet of clear space between the unit and flowers, shrubs, or any other plant life.

Pest Infestations

Animals nesting in outdoor HVAC components can damage the equipment. Inspect your HVAC system regularly for signs of infestations, especially the first time you're turning on the unit after winter. Animals can make a cozy home out of your outdoor machinery during the winter.

Protect your system from HVAC threats, and in return, it will reward you with many more years of great service. If you need an HVAC tuneup or repairs in Monmouth or Ocean counties, don't hesitate to contact Aggressive Mechanical Contractors.