Preparing Your HVAC System for Severe Weather

In Minnesota, severe weather can strike at any time, bringing strong winds, heavy rain, snowstorms, and extreme temperature fluctuations. As a homeowner, it’s essential to ensure that your HVAC system is prepared to handle whatever Mother Nature throws your way. By taking a few preventative steps, you can protect your heating and cooling system, maintain efficiency, and avoid costly repairs. Here's how to prepare your HVAC system for severe weather.

1. Secure the Outdoor Unit
Your outdoor AC or heat pump unit is particularly vulnerable to severe weather. High winds can blow debris into the unit, while snow and ice buildup can damage the components. Here’s how to protect it:

• Clear the Area: Make sure the area around the unit is free of leaves, branches, and other debris that could cause damage during a storm.
• Install a Protective Cover: Use a breathable cover specifically designed for HVAC units to protect it from ice and snow during winter, but avoid using airtight plastic covers, as they can trap moisture.
• Anchor the Unit: In areas prone to high winds, it may be a good idea to secure the unit to a concrete slab to prevent it from being dislodged.

2. Inspect and Clean Drainage Systems
During storms, your HVAC system’s drainage can become clogged or overwhelmed with water, leading to potential flooding and system damage. Make sure all gutters and drainage systems are clear of debris to prevent overflow. In addition, check the condensate drain line to ensure it’s not clogged, as a backed-up line can cause water damage or mold growth inside your system.

3. Power Surge Protection
Severe weather can lead to electrical surges, which may damage your HVAC system's components. Installing a surge protector for your HVAC system helps shield it from voltage spikes caused by storms or power grid fluctuations. This inexpensive device can save you from costly repairs or the need to replace expensive equipment after a power surge.

4. Turn Off the System During Severe Storms
If a particularly strong storm is forecasted, consider turning off your HVAC system at the breaker. This can help protect it from potential damage caused by lightning strikes, power surges, or flying debris. Once the storm has passed and it's safe to do so, you can turn the system back on after checking for any obvious damage.

5. Check Your Air Filter
Severe weather can stir up dust, pollen, and other airborne particles, which can clog your HVAC system's air filter and reduce its efficiency. After a storm, it’s a good idea to inspect the filter and replace it if it’s dirty. This will ensure your system maintains optimal airflow and continues to run efficiently.

6. Inspect for Damage After the Storm
Once the storm has passed, inspect both your indoor and outdoor HVAC equipment for any signs of damage. Look for dents, debris inside the unit, or disconnected parts. If you suspect any damage, contact a professional HVAC technician to perform an inspection before turning the system back on.

7. Schedule Regular Maintenance
Routine maintenance is your best defense against unexpected HVAC breakdowns, especially during severe weather. A professional HVAC technician can inspect your system for vulnerabilities and address any issues before they become major problems. Regular maintenance also ensures that your system is running efficiently, reducing energy bills and extending the lifespan of your equipment.

Severe weather in Minnesota is inevitable, but with the right preparation, you can protect your HVAC system from the elements and keep your home comfortable year-round. From securing the outdoor unit to installing surge protection, these simple steps can help you avoid costly repairs and ensure your system is ready for whatever weather comes your way. If you need assistance with maintenance or system inspections, Air Comfort Heating & Air Conditioning is here to help.