Geothermal System Service & Repair in Acadiana
If you already have a geothermal heating and cooling system in your home, you know how efficient and reliable they can be. But like any HVAC equipment, geothermal systems need regular maintenance and occasional repairs to keep performing at their best.
F & R Air Conditioning services and repairs geothermal systems throughout Abbeville, Lafayette, and the Acadiana region. Whether your system needs a routine tune-up or you’re dealing with a performance problem, our technicians have the experience to diagnose and fix it.
How Geothermal Systems Work
A geothermal system has three main components:
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Ground loop: a series of pipes buried underground that circulate a water-based solution. This loop exchanges heat with the earth, where temperatures stay around 55–65°F year-round in South Louisiana. The Department of Energy considers geothermal among the most efficient heating and cooling technologies available.
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Heat pump unit. Installed indoors, this unit extracts heat from the ground loop in winter (heating mode) or deposits heat into the ground loop in summer (cooling mode).
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Distribution system: standard ductwork distributes the heated or cooled air throughout your home. Some geothermal systems also work with radiant floor heating.
Understanding how these components work together helps us diagnose problems quickly and accurately.
What We Service and Repair
Heat pump unit: the indoor heat pump is the mechanical heart of the system. We diagnose and repair compressor issues, refrigerant leaks, electrical faults, and failing components. If the heat pump unit is reaching end of life (typically 20–25 years), we can help you evaluate replacement options.
Circulator pumps and loop pressure. The ground loop needs proper flow to exchange heat effectively. We check loop pressure, test circulator pumps, and identify blockages or leaks in the loop system.
Thermostat and controls. Geothermal systems require specific thermostat settings and staging that differ from conventional HVAC. Misconfigured controls can cause comfort complaints, short cycling, or unnecessary auxiliary heat usage.
Coils and air handler: dirty coils reduce efficiency and can eventually cause the system to freeze up or overheat. Regular cleaning is essential, especially in South Louisiana where humidity and dust are constant factors.
Auxiliary/backup heat. Many geothermal systems have electric backup heat strips. If your backup heat runs constantly, the geothermal system itself may have a problem — and that’s driving up your electric bills.
Why Geothermal Is Worth Maintaining
Geothermal systems are a significant investment, and proper maintenance protects that investment:
- The ground loop lasts 50+ years, but only if the heat pump unit and circulation system are maintained
- Efficiency stays high: a well-maintained geothermal system delivers 3–5 units of heating energy for every 1 unit of electricity used, earning many systems ENERGY STAR certification
- Operating costs stay low. Neglected systems lose efficiency gradually, and what starts as a small issue can become an expensive repair
- Quiet, reliable operation: with no outdoor compressor, geothermal systems are whisper-quiet when everything is working properly
Annual Maintenance Includes
- Refrigerant check: verify charge levels and check for leaks
- Heat pump inspection. Test compressor, electrical connections, and safety controls.
- Ground loop pressure test: check flow rates and look for circulation issues
- Thermostat calibration: verify settings and staging are correct for your system
- System performance test. Run the system in both heating and cooling modes to confirm everything is operating within manufacturer specs.
Geothermal Expertise You Can Trust
Not every HVAC company has experience with geothermal systems. The ground loop interaction, heat pump operation, and control staging are all unique to geothermal — and incorrect diagnosis can lead to unnecessary expense or further damage.
F & R Air Conditioning has been servicing heating and cooling systems across Acadiana since 1956. If your geothermal system needs attention, whether it’s routine maintenance or a repair, contact us to schedule a service call.