3 Sounds Indicating A Problem With Your Central Air Conditioning Unit

24 May 2017
 Categories: , Blog


If you start hearing strange noises coming from your central air conditioning unit, you may worry that it is about to break down. If so, see if the sound you are hearing is included below to find out if there could be a problem with your AC unit.

Hissing Noise While Compressor Is Running

If you notice a hissing noise coming from your air conditioner while the compressor is running, there could be a leak in one of your hoses. The noise you are hearing may be coolant escaping from a pinhole or slight gap in the hose connections. 

If your coolant is leaking through a hose, you may also notice that your house does not get as cool as it used to, even when the air conditioner is running constantly. If this is the problem, the hose or clamps may need to be replaced by an HVAC technician, and your coolant level will need to be topped off.

Sound Of Dripping Water Between Cooling Cycles

When the air conditioner is resting between cooling cycles, you may start hearing the sound of dripping water. If this describes what you are noticing, there could be a problem with your compressor freezing up.

If the compressor has become blocked or starts to malfunction, the cold air may become trapped inside. As a result, ice crystals will start to form. When the air conditioner is off, the ice melts into water that drips inside the unit. If you feel this could be the problem, the compressor may need to be cleaned, repaired, or replaced by a professional, like http://www.capefearair.com.

Rattling Or Clanking While The Blower Motor Is Running

After the compressor starts, the blower motor kicks on to push the air out of the air conditioner and into your home's ductwork. However, you may have noticed a rattling or clanking sound every time the blower motor is running.

There are two possible explanations for this sound. First, the fan inside the motor may have come loose. Second, the motor itself could be breaking down and has to work harder to push air through the system. You should have a professional look at the motor to see which is causing the issue.

If you hear any of the above sounds coming from your air conditioner, the unit may need professional attention. You may want to contact an HVAC contractor who specializes in AC repair to have them diagnose the problem and offer suggestions on how to fix it.