3 Risks to Your HVAC System During Winter Storms
Winter storms often bring snow days, hazardous road conditions, and frigid air, making routine activities challenging and potentially dangerous.
These storms are defined by significant precipitation in the form of snow, sleet, or freezing rain. With strong winds and subfreezing temperatures, winter storms can be highly destructive—not only to your property but also to your HVAC system, which is not immune to these harsh conditions.
So, how do winter storms threaten your HVAC system, and what steps can you take to safeguard it?
Falling Ice: A Hidden Danger
Falling ice might seem harmless at first glance, but it poses a significant risk due to its weight and potential to expand in volume as it freezes.
In areas prone to ice storms, large amounts of ice can accumulate on roofs and other elevated surfaces, eventually breaking off and falling. This can trap residents indoors for days, and more critically, it can impact your HVAC system.
Outdoor air conditioning units, often situated beneath the roofline, are particularly vulnerable. Sheets of ice, icicles, or chunks can crash onto the unit, potentially damaging its outer cabinet, grille, or fan.
Even a single heavy icicle can leave dents or cause functional issues. Ensuring that the area above your HVAC system is clear of overhanging ice is vital to preventing costly damage.
Water: A Winter Threat to Your HVAC System
Winter weather doesn’t just bring ice—it also brings water in the form of heavy rain or melting snow. When water collects at the base of your outdoor HVAC unit, it can lead to several problems:
- Rust and Corrosion: Prolonged moisture exposure can corrode vulnerable components, reducing the system’s efficiency and lifespan.
- Ice Formation: When temperatures drop after water has accumulated, the water can freeze and expand, causing internal components to seize or break.
- Drainage Issues: Improper drainage around your unit exacerbates these problems, allowing water to pool and persist near the system.
During your regular HVAC maintenance appointments, your technician can inspect the area around your system to ensure it’s properly graded and equipped to drain water away.
Preventative care, such as clearing debris and ensuring proper drainage, can significantly reduce repair costs by addressing minor issues before they escalate.
Heat Pump Blockages: Keeping Your System Clear
Your outdoor heat pump is designed to handle winter weather, but blockages caused by debris, snow, or ice can disrupt its functionality. Here’s why this happens and how to prevent it:
- Debris Accumulation: Wind and rain can deposit pine needles, leaves, and branches onto your heat pump.
- Snow Coverage: Heavy snowstorms can blanket the unit, impeding its ability to operate efficiently.
- Ice Formation: Ice on the heat pump’s surface can increase vibration during operation, straining refrigerant lines and potentially causing leaks.
To avoid these issues:
- Never cover your heat pump completely; it needs airflow to function properly.
- Regularly inspect the area around your heat pump, clearing away snow, ice, and debris to maintain optimal performance.
- Consider using a heat pump snow guard or a protective screen that allows airflow while shielding the unit from large debris.
By maintaining all external components of your HVAC system and keeping them clear throughout the winter, you’ll ensure its longevity and prevent unnecessary stress on its moving parts.
Key Takeaway
Winter can be tough on your HVAC system, but proactive maintenance can save you from costly repairs. Addressing risks like falling ice, standing water, and heat pump blockages will keep your system running smoothly all year round.
Regular inspections by an HVAC professional are essential to catch potential issues early and maintain your home’s comfort during the coldest months.
