Like conventional HVAC systems, geothermal HVAC systems need regular servicing and occasional repairs, even though they work more efficiently and last longer than conventional systems. How can you tell whether a component of the geothermal system in your Garland, Texas, home needs to be fixed? Keep reading to learn about six signs your geothermal system isn’t working as it should and might require a repair.

Increased Energy Bills

Because geothermal heat pumps are much more energy-efficient than electric furnaces, a rise in your utility bills is a sign your geothermal heat pump likely needs a repair. A damaged part of your system might be causing the pump to work harder than usual, thus using more energy. Keep an eye on your electric bill each month, so you can get your geothermal HVAC checked out and repaired sooner rather than later if you notice a spike. That way, you’ll continue to enjoy the fruits of your energy-saving geothermal system by consistently spending less on energy bills.

Difficulty Heating or Cooling

Similar to a conventional system, your geothermal HVAC system uses refrigerant to transfer heat. However, instead of using air as the source, the geothermal system uses the earth’s ground temperature. Therefore, because the system draws from a consistent temperature to heat or cool your home, any issue maintaining your desired indoor temperature usually means your geothermal system needs a repair.

Unusual Sounds

While you may hear the whir of the compressor when your geothermal heat pump turns on, it isn’t normal to hear rattling sounds. If you do hear rattling sounds coming from the heat pump, quickly turn off the system, and immediately call in our team of comfort technicians to inspect and repair any damaged parts. If you continue to use your system after hearing a rattling sound, you could cause more damage to the heat pump and end up paying for additional repairs.

Unpleasant Smells

Your geothermal HVAC unit includes several electrical components, so if you notice an odor like something is burning while the system is on, try to determine the cause of the burning smell. Can you smell it in several areas of the house? Is it only detectable in one room? Check to make sure your air filter is clean and properly installed. Then, if you are unable to determine the exact cause of the burning smell, call our HVAC team right away to get your geothermal system inspected and repaired.

Corroded or Frozen Coils

If you notice ice on your geothermal system’s coils, you might have a refrigerant leak. Ice will form on the coils if they are no longer efficiently absorbing heat, which occurs when the refrigerant is leaking. While you can repair a refrigerant leak, you might need a system replacement if your system is nearing the end of its 25-year life.

You might notice corrosion on the system’s coils if the unit is older than 20. Because corroded coils restrict heat exchange, you’ll likely need a new geothermal heat pump. You can’t brush corrosion off like you can dirt or even ice. If you have an older system, be sure to check for ice or corrosion to get a refrigerant leak repaired or your system replaced if necessary. This will allow you to continue enjoying your geothermal HVAC system’s energy efficiency.

Wet Patches of Lawn

It’s rare to have issues with the ground loops, but if you do have a leak, you’ll notice wet patches on your lawn. Wet patches usually coincide with an issue in heating and cooling your home since ground loop leaks affect the system’s heating and cooling capacity. However, ground loops are designed to last nearly twice as long as the heat pump, so underground leaks are less likely to occur than other issues with your geothermal heat pump.

Continue to reap your geothermal system’s energy savings by watching for these signs that it needs a repair. Call Willard Heating and Air Conditioning today at 972-395-5139 to consult one of our comfort technicians if you’re experiencing any of these geothermal HVAC issues.

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