East Texas is prone to wild swings in weather conditions.

The constant change can wreak havoc on your home, and your HVAC unit is no exception.

So what kind of weather conditions pose the biggest threat to your HVAC system, and what should you do to protect it?

Here are a few tips that will help you keep your home safe and your heating and cooling systems intact, even in bad weather.


If you have an outdoor AC unit, you should make sure the system is covered and disconnected from its power source.

The safest bet is to turn off and unplug anything that uses power, including your HVAC system.


If you need to evacuate your home to escape a tornado, you should turn off your air conditioning to protect it from being damaged.

Covering your outdoor unit can help protect it from dust and debris.

Lightning Storms

Any units located on top of your house are vulnerable to lightning strikes.

If you are preparing for a major storm, you may want to turn off your power to prevent serious damage to your HVAC system.

Ground units are less susceptible, but a surge protector can provide an additional safeguard.


Strong winds can carry large amounts of dust and fine debris.

If this gets inside your vents it can cause problems to your unit as well as your air quality.

Make sure your windows are shut and sealed, and your outdoor units are properly covered.


Your HVAC unit is not built to withstand water damage. You can protect it from floods in a few different ways.

If you have the capability, you can install it upstairs rather than at ground level. While it may seem inconvenient at first, it could save you a headache down the road.

If you don’t have a suitable location above the first floor, you can install a raised platform for your unit.

Finally, you might want to consider building a flood wall to stop water from reaching your HVAC unit.

Extreme Heat

Texas summer heat can take a toll on your air conditioning unit. To avoid overworking your system, try bumping your thermostat up a few degrees.

A general recommendation is to set your inside temperature to 20 degrees cooler than it is outside. This guideline may be easier to follow on some days than others, but it will maximize the efficiency of your air conditioning.

Winter Weather

Freezing temperatures are a terrible time to have mechanical issues. If you have an outdoor unit, keep it clear of snow and ice as much as possible. Make sure the intake and exhaust vents are not blocked.

No matter the weather conditions, always be sure to regularly replace your filters and keep your HVAC system clean throughout the year.

If you need help with optimizing or repairing your HVAC system in East Texas, call Walker Heating and Cooling today – (903) 508-4717