HVAC Heating Repair and TXV Replacement in Spring Hill, FL 34606

When a heating problem pops up during a Florida cold snap, it can be frustrating—especially when the system is only a year old. That was the case for a homeowner in Spring Hill, FL 34606 who called us because their system would cool just fine, but would not heat the home. As local Tampa Bay HVAC technicians serving Spring Hill, we know how important it is to get both heating and cooling working reliably, even in our mild winters.

On this visit, we traced the issue to a defective TXV (thermostatic expansion valve) that had developed a leak. We installed this system last year, so we treated this as a warranty concern, confirmed the problem, and set up a plan to replace the TXV, restore proper refrigerant charge, and verify safe, reliable operation for both heating and cooling.

In this article, we’ll walk through what the homeowner noticed, how we diagnosed the problem, what’s involved in a TXV replacement, and what homeowners in Spring Hill can do to keep their systems running smoothly.

Case Recap: No Heat on a Newer System in Spring Hill

• Location: Single-family home in Spring Hill, FL 34606
• System age: Installed by our team last year
• Main complaint: Air conditioner was cooling, but not providing heat
• Initial finding: Defective/leaking TXV inside the system
• Solution: TXV replacement under warranty, full refrigerant recovery and recharge, and system testing
• Outcome: System left operating, with plan to complete full warranty repair and final checks

Customer Problem: Cooling But No Heat

The homeowner in Spring Hill reached out to us because their air conditioner was not heating the home. They reported that the system would cool as expected but would not switch over to provide warm air when needed. Since we had installed the unit in June of the previous year, they were understandably concerned that something was already failing.

On the day of service, the homeowner could not be present, so we coordinated with her spouse at the home. Clear communication is especially important in those situations. Our technician made sure to:

• Review the reported issue: no heat, only cooling
• Confirm the system’s installation history with our company
• Explain that we would perform a full diagnostic, then review options before making any major repair decisions

From the homeowner’s perspective, the symptoms were simple: the thermostat called for heat, but the home stayed cold. Behind the scenes, though, that can point to several possible causes—electrical, refrigerant-related, or control-board issues—so we moved into a structured inspection.

Inspection and Diagnosis: Tracking Down the TXV Issue

When we respond to a no-heat call like this in Spring Hill, FL, we follow a step-by-step diagnostic process to avoid guessing and to make sure we identify the root cause, not just the symptom.

On this visit, our technician:

• Verified thermostat settings and confirmed a heat call
• Checked that the air handler and outdoor unit were powering on as expected
• Observed system behavior when switching between heating and cooling modes
• Evaluated refrigerant-side components, including the metering device (TXV)

During these checks, we noted that the system behavior was not consistent and the control board was “acting up”—not always responding the way it should. To keep the home as comfortable as possible while we continued our evaluation, we temporarily bypassed part of the control logic to leave the unit operating. This was a controlled, temporary measure so the system could still function while we arranged parts and a full repair.

The key finding came when we inspected the TXV. We confirmed that the TXV valve had developed a leak and was not performing as it should. Given the age of the system and the way the component failed, this pointed strongly toward a factory defect rather than anything the homeowner did wrong.

At that point, we explained to the homeowner that:

• The TXV is a core component in the refrigeration cycle and must be replaced.
• The part would be covered under the system’s warranty.
• Additional materials—like refrigerant, filter-drier, and line flushing—may not be fully covered and could involve extra cost.

We also made it clear that when a system cannot be fully diagnosed until a failed part is replaced, there is always a small chance that an additional issue could show up afterward. We don’t like surprises any more than homeowners do, so we set that expectation up front before moving forward.

Repair Process: TXV Replacement and System Restoration

TXV replacement is a precise repair that has to be done correctly to protect the system and keep it under warranty. Here is how we planned and executed the work for this Spring Hill HVAC repair:

1. Warranty Part Procurement

Because we installed this system, we handled the warranty process on the homeowner’s behalf. The technician coordinated pickup of the new air-handler TXV from the local distributor, making sure the exact approved replacement part was obtained. This helps maintain the manufacturer’s warranty and ensures proper fit and operation.

2. Refrigerant Recovery and Pump Down

Any time we open the sealed refrigerant circuit, we must safely recover the existing refrigerant instead of venting it. For this job, we:

• Pumped down the remaining refrigerant to the outdoor condenser to isolate it
• Prepared the indoor side of the system for component replacement

The key point we explained to the homeowner was that, because we were working inside the sealed system, all of the refrigerant would ultimately need to be replaced and recharged to proper levels. The cost of new refrigerant is typically separate from the warranty coverage of the part itself.

3. Removing the Old TXV

Next, we carefully disconnected the old TXV. This requires:

• Accessing the refrigerant lines at the air handler/coil
• Cutting or desoldering connections without damaging nearby components
• Inspecting for signs of oil or staining that confirm leakage around the valve

Because the TXV was suspected to be defective from the factory, this step also gave us a chance to visually confirm the condition of the part and surrounding piping.

4. Installing the New TXV

We then installed the new TXV under warranty. Proper installation includes:

• Positioning the valve correctly for accurate sensing and flow
• Making solid, clean brazed connections
• Protecting sensitive components from excess heat during soldering

After brazing, we performed a leak check at the newly soldered joints. This is critical—any small leak left behind will cause refrigerant loss over time and can bring the homeowner right back to square one with performance problems or a warm home in the winter.

5. Filter-Drier and Line Flush (If Needed)

On many TXV replacements, it is best practice to replace the filter-drier and flush the copper lines to help remove moisture or contaminants from the system. These components and steps are often not included in the basic part warranty and may be quoted separately. We always explain this clearly so the homeowner understands which items are warranty-covered and which are additional protective measures for long-term reliability.

6. Vacuum and Dehydration

With the new TXV in place and connections sealed, we evacuated the system using a vacuum pump. Pulling a deep vacuum removes air and moisture from the refrigerant circuit. Leaving moisture inside can lead to corrosion, poor performance, and internal damage over time, so this step is not optional—it’s essential.

7. Recharging with Refrigerant

Once the vacuum held steady and passed checks, we recharged the system with new refrigerant. The amount of refrigerant added is carefully controlled to meet the manufacturer’s specifications. We also discussed with the homeowner that needing to add several pounds of refrigerant could indicate a leak in some situations. In this case, we had already identified a failed TXV as the source of leakage, and our leak checks around the repair area help ensure we’ve addressed the problem.

8. Final Testing in Heating and Cooling Modes

After the system was fully recharged, we tested it in both cooling and heating modes. This included verifying:

• Proper system start-up and shut-down
• Correct response to thermostat calls
• Normal airflow and temperature change across the coil
• Stable, expected operation at the new TXV

We do not leave a Spring Hill homeowner without confirming that their system is operating as expected. If we see anything questionable, we address it before wrapping up the job or schedule a prompt follow-up visit.

Why This Fix Works: The Role of the TXV in Heating and Cooling

The TXV is essentially the traffic controller for your refrigerant. It meters how much refrigerant flows into the evaporator coil based on operating conditions. When it does its job correctly, you get efficient heat transfer, steady comfort, and reliable performance in both heating and cooling modes (for systems designed to provide both).

When a TXV fails or leaks, several things can go wrong:

• The system may struggle to maintain correct pressures and temperatures.
• Performance drops—rooms may feel too warm, too cold, or inconsistent.
• In heating mode, the system may simply not be able to move enough energy to warm the home.
• Refrigerant can be lost, which further reduces capacity and can cause the system to shut down or run unsafely.

By replacing the defective TXV, evacuating the system properly, and installing fresh refrigerant at the correct charge, we restored the heart of the refrigeration cycle. That’s why the homeowner in Spring Hill, FL 34606 could expect normal heating operation again once the repair was complete and all final tests were passed.

Pro Tips for Homeowners in Spring Hill

Our Tampa Bay climate is tough on HVAC systems—long cooling seasons, high humidity, and occasional cold snaps all put extra stress on equipment. Here are some practical tips for homeowners in Spring Hill, FL to help avoid surprise breakdowns like this one:

• Schedule regular maintenance. A yearly professional tune-up helps catch issues like weak components, restricted airflow, or early signs of leaks before they become major problems. Our overview of AC repairs and maintenance services explains what’s typically included.
• Use your thermostat wisely. During cooler nights, avoid large, sudden temperature swings. Gradual adjustments put less stress on the system, especially when switching between heating and cooling modes.
• Keep filters clean. In Florida’s dusty, humid environment, filters can clog faster than many homeowners expect. Check them monthly and replace as needed to protect expensive components like coils and TXVs.
• Pay attention to changes in performance. If you notice longer run times, uneven temperatures, or unusual noises, it’s worth calling for a checkup before the problem grows. Our article on AC maintenance and cleaning specials in Tampa Bay shares more about what proactive service can do.
• Plan ahead for repairs. Some warranty repairs still involve labor, refrigerant, or accessory parts that are not fully covered. When we quote a repair, we clearly separate what’s under warranty from what isn’t so you can plan your budget.
• Know who installed your system. Because we had installed this Spring Hill system, we could quickly access history, confirm warranty coverage, and move straight to solutions. If we installed your system, you can always reach out for repair and maintenance options tailored to your equipment.

FAQ: Heating and TXV Repairs for Spring Hill Homeowners

Why would a relatively new HVAC system stop heating?

Even newer systems can experience factory defects or early component failures. In this Spring Hill, FL 34606 home, the thermostatic expansion valve developed a leak, which directly affected how the system handled refrigerant and prevented proper heating. The good news is that, when identified early, these issues are often covered by the manufacturer’s warranty.

What exactly is a TXV and why is it important?

The TXV (thermostatic expansion valve) controls how much refrigerant enters the evaporator coil. It helps the system maintain efficient operation in a variety of conditions. If the TXV sticks, clogs, or leaks, the system may not cool or heat correctly and can become unreliable or inefficient.

Is TXV replacement covered under warranty?

It depends on the system’s warranty terms, who installed it, and the age of the equipment. In this case, because we had installed the system last year and determined that the TXV issue was likely a factory defect, we were able to replace the part under warranty. However, items like refrigerant, filter-driers, and some labor may not always be fully covered and are quoted separately.

Why does all the refrigerant need to be replaced during this repair?

Any time we open the sealed refrigerant circuit—especially at key components like the TXV—it is best practice to recover the existing refrigerant, evacuate the system to remove air and moisture, and then recharge with fresh refrigerant to the correct level. This approach helps protect the system, maintain warranty coverage, and ensure stable, reliable operation.

Could there be more issues after the TXV is replaced?

Sometimes, a failed component can mask or contribute to other underlying issues. That’s why we explain ahead of time that a full diagnosis is only possible once the primary problem is corrected. After the TXV is replaced and the system is running again, we perform additional checks. If anything else shows up, we provide clear estimates before proceeding.

How can I reduce the risk of similar problems in my home?

Regular professional maintenance, prompt attention to performance changes, and having your system installed and serviced by licensed technicians all help reduce risk. Our piece on what to expect from an AC installation quote gives a good sense of how a proper install sets the stage for fewer problems down the road.

Why Spring Hill Homeowners Choose Home Therapist

When your home in Spring Hill, FL 34606 loses heating or cooling, you need more than just a quick patch—you need a team that takes responsibility, explains the situation clearly, and stands behind the work. That’s how we approach every visit at Home Therapist Cooling, Heating, and Plumbing.

Licensed, Professional Technicians. Our technicians are trained, licensed, and experienced with modern HVAC systems, including the equipment we install ourselves. We follow industry best practices on refrigerant recovery, brazing, leak detection, and system testing so your home stays safe and comfortable.

Transparent Communication. In this Spring Hill case, we explained that the TXV was being replaced under warranty, but that refrigerant, filter-driers, or line flushing might involve additional cost. We also made it clear that hidden issues can sometimes appear only after the primary repair is done. We bring that same level of honesty to every job.

Clean, Respectful Work. Whether we are working in your attic, garage, or side yard, we treat your home as if it were our own—laying down protection where needed, cleaning up after ourselves, and minimizing disruption for your family.

Focused on Long-Term Reliability. Our goal isn’t just to get the system running today; it’s to help it run well for years. That’s why we emphasize correct installation, proper evacuation and charging, and routine maintenance. You can learn more about our broader services on our main website.

Connected to the Tampa Bay Community. We are proud to serve homeowners throughout Tampa Bay and nearby communities like Spring Hill. You can see more of our work, updates, and customer interactions on our social channels, including Facebook, Instagram, and YouTube.

For added peace of mind, you can also check our standing with trusted organizations such as the Better Business Bureau and the Tampa Bay Chamber of Commerce. We work hard to maintain a reputation that reflects the care we bring to every home.

Need Heating or Cooling Help in Spring Hill, FL 34606?

If your system in Spring Hill, FL 34606 is not heating, not cooling, or just not running the way it used to, our local Tampa Bay technicians are here to help. Whether it’s a warranty issue on a newer system, a suspected refrigerant leak, or a more complex control problem, we’ll take the time to diagnose it properly, explain your options, and perform the repair the right way.

To schedule HVAC service for your Spring Hill home, contact Home Therapist Cooling, Heating, and Plumbing today. We’ll work with your schedule, keep you informed at every step, and leave your system operating as it should—so your home stays comfortable in every season.