Heat Pump Service
NCI-certified heat pump diagnostics, repair, and maintenance for all brands in Las Vegas.
Heat pumps are increasingly popular in Las Vegas because they provide both cooling and heating from a single system, and modern heat pumps achieve efficiency ratings that significantly exceed conventional air conditioners. But heat pump systems are more complex than standard AC-only installations, and they require technicians who understand both the cooling and heating modes, the defrost cycle, the reversing valve operation, and the auxiliary heat staging that most HVAC contractors never learned.
At Constant Air Balancing and Services, our NCI-certified technicians are trained in heat pump diagnostics that go beyond basic refrigerant checks. We measure airflow across the indoor and outdoor coils, verify proper refrigerant charge using superheat and subcooling measurements in both cooling and heating modes, test the reversing valve operation, and confirm the defrost cycle is functioning correctly for Las Vegas winter conditions.
Las Vegas is actually an excellent climate for heat pump systems. Winter temperatures rarely drop below 25 degrees, which keeps the heat pump operating well above the balance point where auxiliary electric heat would be needed. A properly sized and maintained heat pump in Las Vegas can provide 100 percent of your heating needs from the heat pump mode alone for all but a handful of nights per year, at a fraction of the cost of gas furnace operation.
Common heat pump problems we diagnose in Clark County include reversing valve failures that lock the system in cooling mode during winter, defrost board malfunctions that cause ice buildup on the outdoor coil, low refrigerant charge that reduces both cooling and heating capacity, and airflow restrictions that cause the compressor to operate outside its design envelope. Our diagnostic approach identifies the specific cause, not the symptom, so the repair solves the problem permanently.
System Diagnostic
We test heat pump operation in both cooling and heating modes, measuring refrigerant pressures, airflow, electrical parameters, and temperature differentials to identify performance issues.
Refrigerant Analysis
We verify proper charge using superheat and subcooling measurements, the only accurate method. We never add refrigerant based on pressure alone, as heat pump pressures vary with outdoor temperature and operating mode.
Reversing Valve and Defrost Testing
We verify the reversing valve switches properly between modes and the defrost cycle activates and terminates correctly. These components are critical for winter heating performance.
Airflow Verification
We measure airflow across both the indoor and outdoor coils. Restricted airflow in either location reduces system capacity and can cause compressor damage over time.
Performance Documentation
All measurements are documented and compared to manufacturer specifications. You receive a report showing current system performance and any recommended service.
Comprehensive Heat Pump Service
We test both cooling and heating modes, the reversing valve, defrost cycle, and auxiliary heat staging. Most contractors only check cooling mode and miss heating-specific problems.
Desert Climate Optimization
Las Vegas is ideal for heat pumps, but they must be properly maintained. We ensure your system delivers maximum efficiency in both extreme summer cooling and mild winter heating.
All Brands Serviced
We diagnose and repair heat pumps from all manufacturers, Carrier, Lennox, Trane, Goodman, Rheem, Daikin, Mitsubishi, using NCI protocols that work across all brands.
A heat pump works your system harder than anything else because it both cools and heats, switching modes through the valley’s hot summers and cold desert nights. That dual duty means the charge, the reversing valve, and the defrost cycle all have to be right, and small problems compound fast.
We service heat pumps by reading the charge in both modes, checking the reversing valve operation, and confirming the airflow and temperature split. A heat pump that is even slightly off on charge loses efficiency in both seasons, so we measure it rather than assume it is fine. When something is failing, we trace it to the actual cause instead of replacing the whole outdoor unit on a guess.
Done right, a heat pump is one of the most efficient systems for our climate. See heat pump work in the gallery.
My heat pump was struggling in both summer and winter and the bills kept climbing. They checked the charge in both modes and found it was low and the defrost was acting up. Fixed it properly and the system runs efficient again in both seasons.
Still have questions? Contact us directly or call (702) 840-5163, we are happy to help.
Ready to Get Started?
Contact Constant Air Balancing & Services today for a free, no-obligation quote. We look forward to working with you.