How to Care for an Outdoor HVAC Unit

In Texas, our HVAC units can feel like a lifeline — especially in the grueling summer months. Keeping your HVAC system in pristine condition can help keep costly repairs at bay while keeping your family cool and comfortable in the Texas heat.

We’ve compiled a guide to keeping your home’s MVP appliance in tip-top shape, including a maintenance how-to and HVAC best practices.

Why HVAC Maintenance Is Important

Keeping a clean HVAC unit can extend its lifespan. Experts suggest cleaning your unit at least once a year — ideally in the spring before the summer heat takes effect. It only takes about an hour and can save you time and money in the long run.

1. Turn Off the Unit and Remove Debris

Turn off the unit at the thermostat and breaker. This will protect you from the unit’s moving parts and potential electric shocks. Pick up any leaves or grass and cut back any bushes or plants growing near or around the unit to prevent overcrowding or a blockage.

2. Remove the Unit’s Top

This step seems easy enough, but review the manufacturer’s guidelines before removing the top. Place the top and its screws to the side in a secure spot. Clean out any clumps of dust, dirt, and debris. Brush away grime on the coils with a soft bristle brush.

3. Clean the Interior

Use a foaming coil cleaner to deep clean the unit’s coils. Spray the coils, completely covering them, and let the solution sit for about 10 minutes. Wash off the solution with a garden hose while avoiding the electrical components. It may be tempting, but don’t use a power washer on your unit, as it may damage the coils.

4. Reassemble and Restore Power

Carefully add the top back to the unit and fasten the screws. Turn the power back on at the breaker and thermostat.

Know When to Call a Professional

HVAC systems can be complex and — despite your best efforts — you might still need an expert’s touch. If you notice that the unit is running longer, less efficiently, or making hissing or rattling sounds, it might be time to call in a pro to inspect the unit.

HVAC Best Practices

• Clear debris. Plants and bushes should be approximately a foot away from the unit.
• Change air filters. Check them once a month. At the very least, change them twice a year.
• Refrigerant levels. Keep an eye on refrigerant levels to keep your unit running properly.
• Preventive maintenance. Having a pro inspect your unit helps keep it running smoothly and prevents costly repairs.

Keeping your outdoor HVAC unit clean is easy when you add it to your spring-cleaning maintenance checklist.