What is Heat Pump Service?
Heat Pump Service is the specialized maintenance and repair of a system that both heats and cools your home by moving heat energy. Unlike a standard AC, a heat pump uses a "reversing valve" to change the direction of the refrigerant flow. In the summer, it acts as a "sponge" to soak up indoor heat and dump it outside; in the winter, it pulls heat from the cold outdoor air and brings it inside.
Our service includes testing the defrost control board, which prevents the outdoor unit from turning into a block of ice during a Helena frost. We also check the supplemental electric heat strips that provide "backup" warmth when temperatures drop below freezing.
When is it Necessary?
You need heat pump service if your system gets stuck in "defrost mode" or if it starts blowing cold air during a winter cold snap. In Central Alabama’s "transition zone," heat pumps are very efficient, but they struggle if the outdoor coils are clogged with "yellow dust" during our intense pollen seasons.
If you hear a loud thumping noise when the unit starts or if your "emergency heat" light stays on constantly, there is likely a mechanical issue. Residents in Vestavia Hills should also watch for ice buildup on the outdoor unit, which can happen if the refrigerant levels are low. Because these systems run year-round, they require more frequent attention to prevent total compressor failure.
What is Required?
Properly servicing a heat pump requires NATE-certified expertise because these units are more complex than a standard furnace. We use high-pressure gauges to check the refrigerant levels, ensuring the "conveyor belt" of heat is full and moving efficiently.
Our technicians clean the outdoor coils to remove the "blanket" of dirt and pollen that forces the system to run longer cycles. We also tighten all electrical connections to prevent "arcing," which can cause sudden shutdowns during a heatwave. Finally, we verify the dual-fuel settings for homeowners who use a hybrid system to ensure it switches between gas and electric at the most cost-effective temperature.