Tips & Resources
7 Reasons Your Air Conditioner is Making Loud Noises
When your AC produces loud clanking or rattling noises, it often means your system requires repairs. While the most common reason for loud AC noises is a bad motor, sometimes the problem can be much more minor.
Read on to learn why your air conditioner is making strange noises.
1. A Condenser Issue
If you notice a banging noise emanating from your air conditioning or HVAC system, then chances are there is a problem with your condenser issue. Your condenser could have been damaged because of:
- Dust or dirt
- A broken fan motor
- Loose screws
- Failing, old parts
Your condenser is a vital piece of your air conditioning system. If you hear banging or rattling, you should call an HVAC contractor immediately.
2. Faulty Belts or Motors
Your air conditioner may be making screeching and squealing noises due to a faulty air conditioning belt or a bad motor.
3. Blades and Coils
All air conditioning systems make some noises now and again. An occasional pulsating sound is nothing to worry about. However, if you notice a constant pulsating noise, this means that your HVAC system has a significant problem. The fan blade or coil may be loose, or there may be a problem with the refrigerant lines.
4. A Leak
If you hear a loud hissing noise coming from your HVAC, then chances are your air conditioning system is either leaking refrigerant or has a compressor valve leak.
5. Blockages or Fan Issues
When your AC makes persistent clicking noises, there is probably something wrong with the fan. Either there is a blockage in your fan, or your fan is loose. You could also have a broken thermostat.
6. Duct Problems
If your AC is whistling, there is a problem with the airflow. Either your duct system has a leak, or there is some obstruction that is preventing your AC from maintaining proper airflow.
7. A Lack of Lubricants
When you hear loud humming noises from your AC unit, it’s likely that your HVAC lubrication levels are too low.
Taking Care of Air Conditioner Concerns
Have you noticed any of these problems? Call for professional help! In most cases, problems can be resolved in a single visit.
If you’re a homeowner in Englewood, CO, or live in the Denver Metro area, call Colorado Discount Heating & Cooling to service your air conditioner today.