Heat pumps are sophisticated systems that provide both heating and cooling, which means they work year-round and can develop problems in any season. When your heat pump stops working properly—whether it's blowing cold air in winter or failing to cool in summer—Dye Plumbing & Heating provides expert diagnosis and repair throughout La Porte, IN and Northwest Indiana.
Our NATE certified technicians understand heat pump technology thoroughly. We troubleshoot efficiently, explain what we find clearly, and make repairs that last. With 86+ years of HVAC experience since 1939, we have the deep expertise needed to diagnose and fix heat pump problems quickly and correctly the first time.
Heat pumps present unique diagnostic challenges because they operate in two distinct modes and include components like reversing valves and defrost systems that standard air conditioners and furnaces don't have. This complexity requires technicians with specialized training and experience—exactly what our team provides.
Heat pump not working? Call 219-362-6251 or visit our contact page for fast, reliable service throughout La Porte, IN and surrounding areas.
Heat pumps are more complex than standard furnaces or air conditioners because they must work in both directions and handle extreme temperature ranges. This dual functionality means more components and more potential points of failure. Our experience with heat pump systems throughout La Porte County has given us deep familiarity with the problems that commonly occur.
When your heat pump isn't heating properly, the cause could be any of several issues:
In summer, heat pump problems often mirror air conditioner issues:
Some problems affect heat pump operation regardless of season:
We don't guess—we diagnose systematically using proven troubleshooting methods to identify the actual root cause rather than just treating symptoms.
Our proven troubleshooting approach ensures accurate diagnosis:
We explain what we find in terms you understand and present all repair options. If multiple solutions exist, we'll discuss the pros and cons of each approach.
For older systems, we'll honestly assess whether repair or replacement makes more sense financially—sometimes investing in a new system provides better long-term value than repeated repairs on aging equipment.
We use quality parts that meet or exceed manufacturer specifications and apply proven repair techniques developed over 86+ years of experience. Our goal is always a lasting repair, not a temporary fix that brings us back next month. We stand behind our work and want you satisfied with the result.
The reversing valve is unique to heat pumps—it switches the system between heating and cooling modes by redirecting refrigerant flow. When it fails, the heat pump gets stuck in one mode or operates inefficiently in both.
We diagnose valve problems using temperature and pressure measurements, then replace the valve if necessary. Reversing valve replacement is a significant repair, but proper diagnosis ensures we only replace valves that actually need it.
During heating mode, heat pumps extract heat from outdoor air. When outdoor temperatures drop, frost naturally accumulates on the outdoor coil. The defrost system periodically melts this frost to maintain efficiency.
When defrost fails, ice builds up excessively on the outdoor unit, reducing efficiency and eventually stopping heating entirely. We diagnose the specific component failure and make targeted repairs.
Proper refrigerant charge is critical for heat pump operation in both heating and cooling modes. Unlike air conditioners that only have a few degrees of tolerance, heat pumps are particularly sensitive to charge levels.
We don't simply "top off" refrigerant—if your system is low, there's a leak that needs to be found and repaired. Adding refrigerant without fixing leaks wastes money and harms system efficiency.
Most heat pumps in Northwest Indiana include backup heat for extremely cold weather when heat pump efficiency drops. This auxiliary heat—usually electric heat strips—must work reliably when needed.
We verify auxiliary heat operation during repairs because you may not discover it's not working until you really need it during a cold snap.
The compressor is the heart of the heat pump system. While compressor replacement is expensive, many compressor-related problems are actually caused by other issues.
Sometimes what appears to be a compressor problem is actually a less expensive electrical or control issue.
We repair all heat pump brands regardless of where you purchased the equipment. Our NATE certified technicians receive training on systems from all manufacturers and have the diagnostic tools needed to service any brand.
Making the repair-or-replace decision requires honest assessment. We provide honest assessments based on your specific situation.
Sometimes repair is clearly the right choice; sometimes replacement makes more financial sense. We'll give you the information you need to decide.
Our regional climate creates specific challenges for heat pumps. Our technicians understand these local conditions and the problems they cause. This regional knowledge helps us diagnose issues faster and recommend appropriate solutions.
Rapid temperature changes that stress systems
Push heat pumps to their limits, revealing problems
Challenges cooling efficiency
Between seasons test mode-switching components
From our headquarters at 1600 Lake Street in La Porte, IN, we serve homeowners and businesses throughout the region. Our local presence means faster response times, familiarity with area homes and building codes, and the accountability that comes from being your neighbors.
Dye Plumbing & Heating provides expert heat pump repair throughout La Porte, IN and Northwest Indiana. Our NATE certified technicians diagnose accurately and repair effectively, backed by 86+ years of HVAC expertise since 1939.
What you get with Dye Plumbing & Heating:
We don't guess—we use proven troubleshooting methods to identify the actual root cause.
Specialized training in heat pump technology and all major brands.
Clear explanations and honest assessments of repair vs. replacement options.
Quality parts and proven techniques for lasting repairs, not temporary fixes.
Understanding of Northwest Indiana conditions and their impact on heat pump operation.
Priority response for heat pump emergencies during extreme weather.
Hours: Monday-Friday 7:00am-5:00pm | Saturday 7:30am-12:00pm
© Red Barn Media Group 2026