Geothermal heating and cooling systems are renowned for their efficiency and longevity. These systems can operate reliably for several years which makes them an excellent investment for homeowners. However, like any complex machinery, geothermal systems can occasionally face issues that prevent them from starting or functioning properly.
In this blog, our team at Ingram Mechanical in Edmond, OK, walks you through some common reasons why your geothermal heat and air system might fail to start.
Signs of Geothermal System Problems
Here are a few signs that indicate your geothermal heat and air system may be malfunctioning:
- A sudden increase in utility bills
- Inadequate airflow throughout your home
- Uneven heating or cooling in different rooms
- The system fails to produce heat or cool air
Improper Ground Loop Pressure
A unique aspect of geothermal systems is that they rely on a ground loop to extract or dissipate heat. The water pressure within this loop must be maintained within a specific range for optimal performance. Over time, the subterranean loop may expand, which requires a professional to add water to maintain the proper pressure. While rare, leaks in the loop can also lead to pressure issues.
Pump Malfunction
Geothermal setups use pumps to circulate water through the ground loop. If this pump fails, neither water nor the heat it carries can circulate through the system. This can result in a complete system shutdown. In some cases, the pump may be repairable, while in others, replacement might be the most cost-effective solution. For older systems with recurring issues, it might be worth considering a full system replacement.
Heat Pump Issues
Geothermal systems, despite their ground-based heat exchange, still incorporate many components found in traditional heat pumps. Common issues that can prevent your system from starting include:
- Faulty blower fan motor
- Dead capacitors or bad contactors
- Refrigerant leaks
- Clogged condensate drain
Gasket Leaks
Water is important to the operation of geothermal systems, making leaks a major concern. While big leaks are rare, slow leaks can develop over time, often at gasket points. These may not cause immediate problems but can lead to system failure if enough water escapes.
Dirty Air Filter
One of the simplest yet most overlooked reasons for geothermal system failure is a dirty air filter. A clogged filter can restrict airflow and reduce the system’s efficiency, potentially causing it to shut down. Regular filter changes or cleaning, as per the manufacturer’s recommendations, can prevent this issue and improve system performance.
Professional Diagnosis and Repair
While some geothermal system issues have simple fixes, many require the expertise of a trained professional. Attempting DIY repairs on complex components can lead to further damage and void your warranty. If your troubleshooting efforts don’t resolve the issue, it’s time to call in the experts.
Contact Us to Schedule a Geothermal Heat and Air Service in Edmond, OK!
If you’re experiencing issues with your geothermal system in Edmond, OK, don’t hesitate to reach out to Ingram Mechanical. Our team of skilled technicians specializes in geothermal system diagnostics.
Contact us today to schedule a service appointment!
