Summer can be unbearable without a functioning air conditioning unit, so keeping your unit running smoothly and quietly is essential. However, it is not uncommon for homeowners to hear strange sounds coming from their air conditioning units after they have shut off. Affordable Heat & Air is here to help you understand why your unit might be making noise and provide solutions to keep it functioning correctly. If you’re experiencing issues with your air conditioning unit, don’t hesitate to contact us for AC replacement in Gainesville, TX, and the surrounding areas.
Reasons Why Your Air Conditioner Might Make Noise After Shutting Off
The Ductwork Is Expanding And Contracting
When your air conditioner shuts off, the temperature in the ductwork can change rapidly. This can cause the metal to expand and contract, resulting in a popping or banging noise. This is particularly common in older ductwork or in ductwork that has not been installed correctly.
Loose Parts
Over time, the various components in your air conditioning unit can become loose. When the unit shuts off, these loose parts can vibrate and create a rattling or buzzing noise. This is a common issue in older units or units that have not been maintained regularly.
Dirty Condenser Coils
The condenser coils in your air conditioning unit are responsible for releasing the heat removed from your home. Over time, these coils can become dirty or clogged with debris, making it harder to function correctly. When your air conditioner shuts off, the pressure can build up in the coils, causing a hissing or gurgling noise.
Refrigerant Leaks
If your air conditioning unit is low on refrigerant, it can cause the system to work harder than it should. This can result in a hissing or bubbling noise when the unit shuts off. It is essential to have any refrigerant leaks addressed immediately, as low refrigerant levels can cause your unit to stop working altogether.
Faulty Fan Blades
The air in your home is circulated by the fan blades in your air conditioner. Over time, these blades can become bent or misaligned, causing them to make a clunking or clicking noise when the unit shuts off.
Clogged Air Filter
The air filter in your AC unit filters dust and debris from the air before it is circulated throughout your home. The filter can become clogged with debris, making it harder for air to flow through the unit. When the unit shuts off, the pressure can build up, causing a popping or rattling noise.
Electrical Issues
Electrical issues can also cause your air conditioning unit to make noise after shutting off. If there is a problem with the electrical wiring or components in your unit, it can cause the unit to make a buzzing or humming noise when it shuts off.
If your air conditioning unit makes noise after shutting off, don’t wait until it becomes a major problem. Contact Affordable Heat & Air today to schedule an inspection and find out how we can help keep your home cool and quiet all summer. If you live in Gainesville, call us for a range of services, including air conditioning installation, to help keep your unit running smoothly and quietly.
