Heat Pump Repair in Las Vegas
Same-day heating and cooling repairs for every major heat pump brand
Short answer: The Cooling Company repairs heat pumps throughout the Las Vegas Valley — including reversing valve failures, refrigerant leaks, defrost cycle issues, compressor problems, and thermostat miscommunications. Licensed technicians, fully stocked vans, and upfront pricing on every visit. Call (702) 567-0707 or book online for same-day service.
A heat pump does the work of both your air conditioner and your heater — which means when it fails, you lose comfort in both directions. Las Vegas heat pumps run under extraordinary stress: cooling your home through 115-degree summers and handling rapid temperature swings between scorching afternoons and cool desert nights. That relentless workload accelerates wear on every component from the reversing valve to the compressor. When something breaks, the repair needs to be right the first time.
The Cooling Company has diagnosed and repaired heat pumps across Las Vegas, Henderson, North Las Vegas, and the surrounding valley since 2011. Our technicians are trained on the specific failure patterns that Las Vegas conditions create — failures that behave differently here than they do in cooler, more humid climates.
What Is Heat Pump Repair?
Heat pump repair is the diagnosis and correction of any mechanical, electrical, or refrigerant-circuit fault that prevents your heat pump from delivering its rated heating or cooling output. Unlike a traditional furnace-and-AC setup that uses two separate systems, a heat pump shares a single refrigerant circuit for both heating and cooling. The reversing valve is what switches the direction of refrigerant flow — and that shared architecture means a single component failure can knock out both functions simultaneously.
Repair work typically involves:
- Electrical diagnostics — testing capacitors, contactors, control boards, and wiring
- Refrigerant system service — leak detection, evacuation, and recharge to manufacturer specifications
- Mechanical component replacement — fan motors, compressors, reversing valves, and defrost controls
- Thermostat and communication diagnostics — ensuring your thermostat is sending correct signals for heating and cooling modes
- Coil cleaning and airflow restoration — removing desert dust and mineral deposits that restrict heat transfer
Common Heat Pump Problems in Las Vegas
Reversing Valve Stuck in One Mode
The reversing valve is the heart of what makes a heat pump unique. It shifts refrigerant flow to switch between heating and cooling. When the valve sticks — either mechanically or because its solenoid coil fails — the system locks in one mode. You get cooling but no heating, or heating but no cooling. Las Vegas heat pumps cycle between modes frequently as seasons shift, and that repeated switching accelerates solenoid wear. A stuck reversing valve is one of the most common heat pump repairs we perform.
Defrost Cycle Issues
Heat pumps extract heat from outdoor air even in cold weather. When outdoor temperatures drop below 40 degrees Fahrenheit — which does happen on Las Vegas winter nights — moisture in the air can freeze on the outdoor coil and block airflow. The defrost cycle is supposed to melt that ice automatically. When the defrost control board, outdoor temperature sensor, or defrost relay fails, the coil can ice over completely and the system stops heating. You may notice the outdoor unit buried in ice, or the system running in heating mode but producing only cool air indoors.
Refrigerant Leaks
Heat pumps require a precise refrigerant charge to operate efficiently. Leaks develop from vibration fatigue at line set fittings, corrosion on the coil, or manufacturing defects. In Las Vegas, the extreme outdoor heat causes the refrigerant circuit to operate at higher pressures than in cooler climates, which can accelerate leak development at connection points. Signs of a refrigerant leak include ice forming on the refrigerant lines, reduced heating and cooling output, a hissing sound near the outdoor unit, and higher-than-normal energy bills. We locate the leak, repair it, and recharge to the correct specification — simply topping off without fixing the leak is an incomplete repair.
Compressor Failures
The compressor is the most expensive component in any heat pump. Las Vegas heat pumps run their compressors harder than units in most other U.S. cities — high ambient temperatures force the refrigerant circuit to operate at elevated discharge pressures, creating thermal stress on compressor windings. Common compressor failures include hard starting (the compressor struggles to start and draws excessive current), locked rotor (the compressor seizes), and electrical winding failures. We test before replacing — a hard-starting compressor can sometimes be salvaged with a hard-start kit, avoiding a much larger repair cost.
Thermostat Miscommunication
Heat pumps use a different wiring protocol than conventional furnace-and-AC systems. The Y2 terminal, O/B reversing valve wire, and auxiliary heat staging require correct configuration at the thermostat. A thermostat that was not programmed for heat pump operation — or one that had its wiring disturbed during a DIY installation — will send incorrect signals that cause the heat pump to run in the wrong mode, engage auxiliary heat unnecessarily, or fail to switch between heating and cooling at all. Thermostat misconfigurations are frequently misdiagnosed as component failures, so we always verify control wiring early in our diagnostic process.
Ice Buildup on Outdoor Unit
Beyond defrost cycle failures, excessive ice on the outdoor unit can result from a dirty air filter restricting indoor airflow, low refrigerant, a failed outdoor fan motor, or blocked return air vents. When airflow is restricted, the refrigerant circuit cannot absorb heat properly, causing coil temperatures to drop below freezing even in mild weather. Full ice blockage stops all heat transfer and can damage the compressor if the system continues to run. Never chip ice off a heat pump coil — call for diagnosis so the underlying cause is corrected.
Auxiliary Heat Engaging Too Often
Heat pumps are designed to handle Las Vegas heating loads without much help from auxiliary heat strips. If your auxiliary heat is running constantly — which you can tell by a sudden spike in your electric bill or the "Aux Heat" indicator staying on for extended periods — the heat pump itself may not be producing enough heat output. Causes include low refrigerant, a malfunctioning reversing valve, a failing compressor, or incorrect thermostat balance point settings. Running auxiliary heat strips continuously costs 2 to 3 times more than running the heat pump's refrigerant cycle, so diagnosing this problem quickly has real financial stakes.
Heat Pump Repair vs. Replacement: How to Decide
Not every repair is worth doing. The decision between repairing and replacing your heat pump depends on four factors: the age of the system, the cost of the repair relative to replacement, the efficiency of your current system, and whether there are recurring issues that signal overall system decline.
- Age under 8 years: Repair almost always makes sense, even for mid-sized repairs. A well-maintained heat pump should have years of service life remaining.
- Age 8 to 12 years: Compare repair cost against 50% of a new system's installed price. If the repair exceeds that threshold, replacement may deliver better long-term value — especially if a newer system qualifies for efficiency rebates.
- Age over 12 to 15 years: Major component failures (compressor, reversing valve) in older systems warrant a serious replacement discussion. The system is approaching end of service life, and one major repair often precedes others.
- Recurring failures: If you have repaired the same system multiple times in the past two to three years, the pattern suggests overall system decline rather than isolated component failure.
- R-22 systems: Heat pumps manufactured before 2010 may use R-22 refrigerant, which is no longer produced in the U.S. Recharging these systems requires expensive reclaimed refrigerant. Replacement with a modern R-410A or R-32 system is typically the better financial decision.
Our technicians will give you an honest assessment. If replacement is the smarter move, we will say so — and we offer heat pump replacement with transparent quotes and no-pressure recommendations.
Heat Pump Repair Cost Guide
| Repair Type | Typical Cost Range | Notes |
|---|---|---|
| Diagnostic fee | $79 | Applied toward repair cost |
| Capacitor replacement | $150 – $300 | Run or start capacitor |
| Contactor replacement | $150 – $350 | Outdoor unit electrical component |
| Reversing valve replacement | $450 – $950 | Includes solenoid and labor |
| Defrost control board replacement | $250 – $600 | Varies by brand |
| Fan motor replacement (outdoor) | $300 – $700 | Common after summer heat stress |
| Refrigerant leak repair + recharge | $350 – $1,500 | Depends on leak location and refrigerant type |
| Hard-start kit installation | $150 – $300 | Can extend compressor life |
| Compressor replacement | $1,200 – $3,000 | Major repair; compare against replacement |
| Control board replacement | $300 – $750 | Varies significantly by brand and model |
| Thermostat replacement (heat pump compatible) | $150 – $400 | Includes programming and wiring verification |
All prices include parts and labor. Actual cost depends on your system's brand, age, accessibility, and refrigerant type. Every repair begins with a $79 diagnostic.
Brands We Service
Our technicians are trained and equipped to repair heat pumps from all major manufacturers:
- Lennox — Lennox Premier Dealer with factory-trained technicians and OEM parts in stock
- Carrier — full-line repair coverage including Infinity, Performance, and Comfort series
- Trane — XR, XL, and XR series heat pumps
- Rheem — Prestige and Classic series heat pumps
- Goodman — GSZ, GSZC, and DSXC series
- Daikin — including Daikin-branded Goodman systems and ductless mini-splits
- Mitsubishi Electric — ductless and multi-zone mini-split heat pumps
- American Standard, York, Heil, Armstrong, and all other major brands
If your heat pump brand is not listed, call us. We carry universal components that fit most systems and can source brand-specific parts quickly through our supplier network.
Why Las Vegas Heat Pumps Fail Faster
Extreme Heat Stress
Heat pumps are rated for efficiency at a standard outdoor temperature of 95 degrees Fahrenheit. Las Vegas regularly exceeds 110 degrees for weeks at a time. At those temperatures, the refrigerant circuit operates at discharge pressures 20 to 30 percent above design specifications, subjecting the compressor, reversing valve, and refrigerant lines to stress they were not engineered to sustain indefinitely. Capacitors and contactors — small electrical components that handle high current loads — degrade rapidly when exposed to sustained 110-degree outdoor temperatures inside the unit cabinet, where temperatures can reach 140 degrees or more.
Desert Dust
Las Vegas sits in a desert basin that generates significant airborne dust, particularly during wind events and monsoon season. Dust accumulates on outdoor coil fins, reducing airflow and heat transfer efficiency. Restricted coil airflow forces the refrigerant circuit to work harder, raising discharge pressures and compressor temperatures. Dust also infiltrates the electrical compartment of the outdoor unit, coating capacitors, contactors, and control boards. An annual coil cleaning is not optional in Las Vegas — it is essential to maintaining normal service life.
Hard Water Effects on Outdoor Coils
Las Vegas municipal water is among the hardest in the United States, with high concentrations of calcium and magnesium. When condensate water drips across outdoor coil fins — or when homeowners rinse units with tap water — mineral deposits build up on the aluminum fins over time. This calcium scale is an insulator that reduces heat transfer efficiency. Unlike dust, which brushes off, calcium scale requires chemical treatment to remove. Severely scaled coils cannot be restored and require replacement. If you notice a white crusty buildup on your outdoor unit's coil, schedule a coil cleaning before the restriction causes compressor damage.
Heat Pump Repair Near You
We repair heat pumps throughout the Las Vegas Valley:
- Heat Pump Repair in Anthem
- Heat Pump Repair in Boulder City
- Heat Pump Repair in Centennial Hills
- Heat Pump Repair in Downtown Las Vegas
- Heat Pump Repair in Downtown Summerlin
- Heat Pump Repair in Enterprise
- Heat Pump Repair in Green Valley
- Heat Pump Repair in Henderson
- Heat Pump Repair in Lake Las Vegas
- Heat Pump Repair in Las Vegas
- Heat Pump Repair in Mountains Edge
- Heat Pump Repair Near Me
- Heat Pump Repair in North Las Vegas
- Heat Pump Repair in Paradise
- Heat Pump Repair in Rhodes Ranch
- Heat Pump Repair in Seven Hills
- Heat Pump Repair in Silverado Ranch
- Heat Pump Repair in Southern Highlands
- Heat Pump Repair in Spring Valley
- Heat Pump Repair in Summerlin
- Heat Pump Repair in The Lakes
- Heat Pump Repair in Whitney Ranch
Related Services
- Heat Pump Installation — new heat pump systems sized for Las Vegas homes
- Heat Pump Replacement — upgrade an aging or failed heat pump
- Heat Pump Maintenance — seasonal tune-ups to prevent the failures listed above
- AC Repair — scheduled air conditioning repair with $79 diagnostic
- Emergency HVAC — 24/7 emergency response when your system fails overnight or on weekends
Frequently Asked Questions
How do I know if my heat pump needs repair or replacement?
If your heat pump is under 8 years old, repair is almost always the right choice. For systems 8 to 12 years old, compare the repair cost against 50% of a new system's installed price — if the repair exceeds that, replacement is worth evaluating. For systems over 12 to 15 years old with a major failure like a compressor or reversing valve, replacement typically delivers better long-term value. Our technicians will give you both options with honest recommendations.
Why is my heat pump blowing cool air in heating mode?
Cool air in heating mode usually points to one of four causes: a reversing valve stuck in cooling position, a refrigerant leak that has reduced the system's heat output, a defrost cycle that is not completing correctly and has caused the outdoor coil to ice over, or a thermostat that is wired or configured incorrectly for heat pump operation. All four are diagnosable and repairable. Call (702) 567-0707 for same-day service.
Why does my heat pump run but produce little heating or cooling?
Reduced output with the system running is most commonly caused by low refrigerant from a leak, a dirty or blocked outdoor coil restricting heat transfer, a failing compressor that is not reaching full capacity, or a partially stuck reversing valve. In Las Vegas, calcium scale buildup on outdoor coils is a frequent contributor that is easy to overlook. A proper diagnostic will identify which component is responsible.
How much does heat pump repair cost in Las Vegas?
Our diagnostic fee is $79, which is applied toward the repair cost. Common repairs range from $150 to $300 for capacitors and contactors, $450 to $950 for a reversing valve, $350 to $1,500 for refrigerant leak repair and recharge, and $1,200 to $3,000 for compressor replacement. We provide upfront pricing before any work begins — no surprises.
Why does my heat pump auxiliary heat keep coming on?
Auxiliary heat is supposed to assist during very cold conditions or when the system is recovering from a large temperature setback. If it runs constantly, your heat pump is not producing sufficient heat output on its own. Common causes include low refrigerant, a malfunctioning reversing valve, a failing compressor, or an incorrect balance point setting on the thermostat. Running auxiliary strips continuously costs 2 to 3 times more than running the heat pump's refrigerant cycle, so diagnosing this quickly saves real money.
Why is my outdoor heat pump unit covered in ice?
Some frost on the outdoor coil during cold weather is normal and the defrost cycle removes it automatically. Heavy ice buildup that does not melt indicates a defrost system failure — a faulty defrost control board, outdoor temperature sensor, or defrost relay. Ice can also form from low refrigerant or a dirty air filter causing low indoor airflow. Do not chip ice off the coil, as this can damage the fins. Turn the system to fan-only mode to begin thawing and call for service.
Can you repair ductless mini-split heat pumps?
Yes. We repair ductless mini-split heat pumps from Mitsubishi Electric, Daikin, LG, Samsung, Gree, Fujitsu, and other brands. Mini-split repairs include refrigerant leak detection and recharge, fan motor replacement, control board service, drain line cleaning, and compressor diagnostics. Mini-splits have their own diagnostic error codes that our technicians are trained to read and interpret.
How can I prevent heat pump failures in Las Vegas?
The most effective prevention steps are: change air filters every 1 to 2 months during heavy-use seasons, schedule a professional heat pump maintenance tune-up twice a year (spring before cooling season, fall before heating season), keep the outdoor unit clear of debris and vegetation, and rinse outdoor coil fins gently with a garden hose — not a pressure washer — to remove dust. Annual maintenance catches worn capacitors, low refrigerant, and dirty coils before they become emergency failures.
Schedule Heat Pump Repair
A heat pump that is not heating or cooling correctly wastes energy and puts stress on every component in the system. The longer a refrigerant leak, bad capacitor, or stuck reversing valve is left unaddressed, the more expensive the eventual failure becomes. Call (702) 567-0707 to schedule same-day heat pump repair across the Las Vegas Valley, or book online for the next available appointment.
Need HVAC Service in Las Vegas?
The Cooling Company provides expert HVAC service throughout Las Vegas, Henderson, and North Las Vegas. Our licensed technicians deliver honest assessments, upfront pricing, and reliable results.
Call (702) 567-0707 or visit AC repair, maintenance, heating, or installation for details.