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What You Need to Know to Maintain Your Geothermal System

Posted by Scott Mise | 06.12.2015

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Geothermal HVAC systems operate on ground loops buried in your soil, deep enough that the ground temperature is the same year-round. This provides a heat sink in the summer and an abundant source of energy in the winter, but it also puts the outdoor coils out of reach. Fortunately, geothermal systems are quite reliable, and maintaining one is easy for the homeowner even when the ground loops are not accessible.

A few tips on maintaining a geothermal system:
• Use the right thermostat. A wired thermostat rather than a battery-driven thermostat is a wise investment, and using a programmable thermostat to run the geothermal system when only necessary will boost to your energy efficiency. Be sure the thermostat is set correctly, and that the fan is set to “auto,” not “on.”
• Change the air filter monthly to avoid obstructing airflow. Use filters that the system is best rated to handle. If you want to increase air filtration, consider a whole-house air cleaner.
• Check the system’s condensation pans for standing water, and clear the drain of any blockage. Yearly, rinse the drain with a dilute bleach solution so it flows freely.
• Do not close the vents in your home, and keep an eye on them for debris or blockage. Make sure not to place furniture or clutter in front of the vents.
• Watch your ductwork and repair any leaks. Leaks can be visible as punctures, gaps and tears or they may be found by a pattern of blown-out dust on the wall or ceiling next to the duct.
• Review your owner’s manual to become familiar with the many indicator lights and system accessories.
• Schedule seasonal maintenance with your local geothermal experts. They can conduct a thorough inspection, including a check of your refrigerant levels, maintenance of your internal components and a check of electrical connections.

For help maintaining a geothermal system in your Austin home or to answer any questions you may have, call us at Airco.