24 Seven HVAC

Signs of a malfunctioning compressor

As the heat builds up, an air conditioning unit is a lifesaver. Its optimum functioning is important to maintain a comfortable and cool atmosphere inside a home. But why is an AC compressor important, and how can homeowners identify the signs of a malfunctioning compressor? 24 Seven HVAC, an HVAC system installation NY, explains the role of a compressor and how to catch the symptoms of a malfunctioning compressor.

Why is an air compressor important?

An air conditioning compressor is responsible for pressurizing the refrigerant that runs through an air conditioner. The refrigerant then absorbs the heat from the air inside, releases it outside, and brings in cooled air inside the house. Here’s how the compressor works:

The heat-transfer cycle starts as the compressor squeezes the refrigerant, raising its temperature well above the surrounding atmosphere. It also pressurizes the refrigerant to its liquefying point, making it flow through the system.
This hot, pressurized, liquified refrigerant flows to a condenser coil to release the excess heat into the cooler atmosphere. A fan blows air through the condenser coil to facilitate the extra heat transfer.
The liquid refrigerant then flows to an evaporator coil, where it expands into a hot gas at the reduced pressure in the evaporator.
The compressor pushes hot pressurized refrigerant toward the condenser while pulling the warm vaporized refrigerant from the evaporator to start the cycle.

The AC fails to cool the house when the compressor fails to maintain this cycle.

3 signs of a failing compressor

It is imperative to notice the early signs of a poorly functioning compressor to ensure that the cooling capabilities of the HVAC are not compromised and the repair bills are not excessive. Here are the signs of a bad compressor:

When the unit releases lukewarm or cool air outside

A properly functioning compressor will carry the hot air from inside and release it outdoors. The best way to check this feature is by placing a hand in front of the compressor unit. Lukewarm or cool is a sign that the unit is not compressing the gas properly or a refrigerant leak. Another sign of a refrigerant leak is when a system loses cooling power over time, straining the compressor.

Loud or unusual noises from the unit

AWhen the unit is turned on; a noiseless start indicates a well-functioning compressor and fans motor. Any vibrating sounds, rumbling noise, a popping sound, banging noises, clicking, growling, clattering, or screeching noises signify electrical problems in the A/C compressor or the compressor, or a fan is loose in the housing. A compressor that is “hard starting” or struggling with starting indicates imminent failure. This calls for immediate action and professional HVAC assistance.

The compressor fails to turn on

The condensing unit must be inspected when the AC is not cooling the house adequately despite a low-temperature setting and a properly functioning fan. If the aircon compressor can’t be heard over the fan, homeowners may face a repair or replacement choice. If an AC is 10-15 years old, it is better to change the complete system instead of changing just the compressor as it is expensive.

Why 24 Seven HVAC?

24 Seven HVAC is a family-centric business based in Syracuse, NY, offering 35 years of HVAC system installation, repair, and maintenance experience. With its stellar service and top-of-the-line and affordable products, 24 Seven HVAC ensures a satisfactory HVAC installation service for years to come. Adhering to organic, green, and planet-wary solutions, 24 Seven HVAC is a conscientious business dedicated to building a better planet for its clients. It offers personal attention to each client’s HVAC needs in residential and commercial spaces.