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One System, Two Seasons, Twice the Reason to Service It
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A heat pump heats your home in winter and cools it in summer using the same equipment, which means it runs nearly year-round and has components no air conditioner has: a reversing valve that switches the system between modes, a defrost cycle that clears the outdoor coil in cold weather, and auxiliary heat that fills in when the heat pump alone cannot keep up.
Those parts are where heat pump problems tend to live, and they are the reason a heating-season complaint can trace back to something that also affects your cooling. DVO Heating & Air Conditioning has serviced heat pumps across Mesquite, TX and the Dallas-Fort Worth area since 2006, and our technicians diagnose reversing valves, defrost controls, compressors and the electrical components that keep a system switching modes reliably.
It is also why heat pumps get serviced twice a year rather than once. Whether you need a repair, a new system or the spring and fall visits that keep one healthy, start here. Se Habla Espanol.
Repair, Replacement or Seasonal Service
Blowing warm air in cooling mode, stuck in one mode, running the outdoor unit into a block of ice, or leaning on backup heat far more than it should. We diagnose reversing valve faults, defrost cycle malfunctions, auxiliary heat problems and the electrical failures behind them.
Heat Pump Repair in Mesquite, TXA heat pump handles both seasons, so sizing it means accounting for the cooling load and the heating load together, along with how the backup heat is staged. We assess the home, size the system properly, and commission and test it rather than simply setting it and leaving.
Heat Pump Installation in Mesquite, TXBecause the system works in both seasons, we service it twice: a spring visit that prepares it for cooling, and a fall visit that gets the defrost cycle, auxiliary heat and controls ready for Texas winter. Both include refrigerant checks, coil cleaning and sensor calibration.
Heat Pump Maintenance in Mesquite, TXHeat pump faults look different from air conditioner faults. Here is what our technicians look for first.
A heat pump that heats but will not cool, or cools but will not heat, usually points at the reversing valve or the control signal driving it. This is the component that separates heat pump diagnostics from standard AC work, and testing it correctly is what keeps the repair from turning into a parts-swapping exercise.
Some frost on the outdoor coil in cold weather is normal, and the defrost cycle is supposed to clear it. Ice that stays, or builds up into a solid block, means the defrost control, sensor or timing is not doing its job. Left alone it costs you efficiency and puts strain on the compressor.
Auxiliary heat exists to supplement the heat pump on the coldest days, not to carry the house. If it is engaging routinely, the heat pump side is underperforming and your electric bill will show it. We test the staging and the heat pump's capacity to find out which one is at fault.
Family-Owned and Licensed in Texas Since 2006
Heat pumps reward technicians who understand them and punish the ones who treat them like an air conditioner with an extra wire. Our team diagnoses the reversing valve, defrost and auxiliary heat systems specifically, uses temperature and pressure analysis alongside electrical testing, and works on today's communicating controls including sensor calibration and thermostat integration.
DVO holds Texas HVAC license TACLA26823E and is EPA certified for refrigerant handling. We diagnose first and quote second, so you approve a written price before any repair or installation begins, and when a system is far enough gone that replacement is the better investment, we say so plainly instead of stacking up repairs.
We cover Garland, Forney, Rowlett, Sunnyvale, Balch Springs, Lake Highlands and the wider Dallas-Fort Worth Metroplex. We also service air conditioners, furnaces, ductless mini-splits and package units.
DVO offers heat pump repair, heat pump installation and bi-annual heat pump maintenance for homes and businesses in Mesquite, TX and the surrounding Dallas-Fort Worth area. Our technicians work on reversing valves, defrost controls, compressors, auxiliary heat systems and the electrical components that keep a heat pump switching modes reliably.
A heat pump is the only piece of equipment in most homes that works in both seasons, so it accumulates roughly twice the run time of a cooling-only system. We service it in spring to prepare it for the cooling season and again in fall to get the defrost cycle, auxiliary heat and controls ready for Texas winter. Each visit covers refrigerant verification, coil cleaning and sensor calibration.
Some frost on the outdoor coil during cold weather is normal, and the defrost cycle is designed to clear it. Ice that persists, or that builds into a solid block around the coil, means the defrost control, sensor or timing is not working correctly. That costs efficiency and puts strain on the compressor, so it is worth having diagnosed rather than waiting it out.
A heat pump that will not switch out of heating mode usually points at the reversing valve or the control signal that drives it, though low refrigerant and compressor problems produce similar symptoms. Because the same components serve both seasons, a cooling-mode fault often hides something that will affect your heating too, which is why we test the full mode-switching path rather than only the cooling side.
No. Auxiliary heat is there to supplement the heat pump on the coldest days, not to carry the house through the season. If it is engaging routinely, the heat pump side is underperforming and your electric bill will reflect it. We test both the staging of the backup heat and the capacity of the heat pump itself to identify which one is actually at fault.
Describe what the system is doing in each mode and we will get a technician out to diagnose it. Se Habla Espanol.
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