Why Isn't the HVAC System Keeping the Home Cool?
When the air conditioner is blowing out hot or warm air or struggling to keep the home cool, it may be hard to know the underlying problem. The truth is, there are a lot of reasons an AC unit may be failing. For an accurate diagnosis and repair, homeowners should call a professional HVAC company.
Falling Leaves and Other Debris Collected Around Unit
All HVAC systems depend on the movement of air. Air comes in through an intake, is heated or cooled, and then forced out into the home. For an air conditioner, the intake usually happens inside the home. But if the air conditioner is built into the home's HVAC system, be sure that both intake vents and exhaust pipes are clear of debris.
Air conditioners also have a compressor outside the home, usually placed on a concrete or plastic pad. This unit is typically quite large and stands out like a sore thumb. It is common for falling leaves, dirt, and debris to collect in drifts around this unit. On particularly windy days, dirt and debris may even make its way inside this unit.
Fallen leaves, dirt, and debris all act as an insulator around the compressor. Compressor coils need to be clear and exposed to transfer heat from the refrigerant to the outside air. When blocked by piles of leaves, the heat cannot transfer. This will prevent the air conditioner from cooling the air as required.
To remedy this problem, homeowners should make a habit of clearing away debris from the compressor unit. Especially in the fall, they should routinely gather and dispose of fallen leaves and twigs. The unit can be occasionally hosed down or wiped clean to clear it of dirt and dust. As always, routine maintenance by a trained professional will keep the unit running effectively for years to come.
Improperly Sized Unit
For homeowners with hotspots throughout their home or air that isn't consistently as cool as it should be, one potential problem may be that the air conditioner is the wrong size. A unit that is too small will not be able to cool all the air throughout the home, while a unit that is too large will turn on and off frequently.
A trained HVAC technician can calculate what size air conditioner is needed based on the size of the living space, the climate where the home is located, the layout of the ductwork, and whether they have a basement or attic.
Malfunctioning Thermostat
If the home feels warmer than the thermostat's temperature, it may be caused by a malfunctioning thermostat. Another sign of a malfunctioning thermostat is if the HVAC system turns on and off frequently.
The thermostat is responsible for measuring the home's temperature and controlling when the heater or air conditioner turns on and off. There is a thermometer inside the thermostat and electrical wires that connect to the electrical controls on the heater or air conditioner.
If the thermometer is broken or the wires become loose, the home's heating and cooling system will not work properly. To have this problem diagnosed and to get a thermostat replacement, call a trusted HVAC company.
About Air Now
Air Now has been meeting the HVAC needs of homeowners for over 60 years. Their technicians are experienced in AC repair in Sarasota, FL, and can help with maintenance. They are famous for offering same-day service 365 days a year.
