Schedule a Geothermal HVAC Repair if You Notice These Signs

An HVAC system is an excellent investment if you keep it in prime condition. If you don’t properly maintain it, it’ll experience problems due to the fluctuating weather conditions in Lone Tree, CO. Here are signs you need a geothermal HVAC repair:

Higher Energy Bills

Since geothermal HVAC systems are very energy efficient, a high energy bill is the most obvious sign of a problem. Pay particular attention to your electricity bill because a fault in the geothermal system will trigger the backup electric resistant heat. As a result, your electric bill will be higher than normal.

In winter, an old geothermal HVAC system may work harder to maintain efficiency, causing problems in the heat compressor. Similarly, leaks from the refrigerant may cause abrupt behavior. To sort out the problem, call a trained HVAC service technician to investigate whether the geothermal HVAC system is the root cause of the problem.

Wet Patches on the Ground

If you notice random wet spots on the ground or anywhere around your property, it’s due to a mixture of antifreeze and water leaking from the coils. While it’s not common for a geothermal HVAC system to cause ground leaks, any HVAC system more than 15 years old is susceptible to such problems.

If you see these wet patches, call an HVAC service provider immediately. Your service technician may insert a dye to color the leaking fluid. This will make it easier to spot the coil it’s leaking from when a colored wet patch appears on the ground right above that coil.

Inadequate Heating and Cooling

A geothermal HVAC system is more efficient because it uses geothermal energy to keep the temperature constant. As the underground geothermal source provides constant year-round temperature, any improper energy distribution is a cause of concern.

If you feel that the air is not distributed properly or if there’s an inconsistent temperature, call a professional. Various factors contribute to the inconsistent temperature, such as electric failure, frosted coils and refrigerant leaks. The service technician may only fix the indoor unit or carry out much more extensive work, such as replacing the loop underground.


If the geothermal HVAC system is over 20 years old, it’s prone to corrosion. The corrosion can also take place earlier, depending on the soil condition. Corroded coils restrict the heat flow by reducing efficiency and creating problems in the long run.

Unlike dirt and ice, corrosion isn’t something service technicians can wipe away. In most situations, they will replace the corroded coil. If you feel that the system is not providing enough heat, it’s time for a maintenance call.

Noises From the Heat Pump

When the heat pump turns on, it makes a slight sound. The sound is due to the processor kicking in. If the geothermal HVAC system is in good shape, it’s the only noise you will likely hear.

Do you hear any other rattling noise from the HVAC system? If so, it signals a potential problem. If these noises are consistent, call an HVAC service technician immediately. Ignoring continuing noises can lead to irreparable damage.

Air Filters and Ductwork

A geothermal HVAC system uses fans to move the air through a network of ducts. A lack of lubricants can jam these filters. A dirty air filter is another major problem that can cause unfiltered air to circulate throughout the house.

A dirty air filter can cause temperature variations inside a building. Over time, pollen, dust and pet dander can accumulate, causing health problems. If the air filter clogs, the air may become stale. Call a trained service technician to check the system and the ductwork if you notice stale air.

Littleton Heating & Air Conditioning is here to complete your geothermal HVAC repair and restore your comfort. Contact us if you’ve noticed any of the aforementioned signs of trouble.

Image provided by iStock

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