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Holy City Heating & Air Blog

7 Concerning Sounds Your Heat Pump Might Make


One of the many great things about heat pumps is that they are made to operate more quietly than many other systems. This makes it much more obvious when something is wrong with your system.

Odd, new noises that develop in your heat pump aren’t a sign of a poltergeist–they’re a sign that you need to find a professional to provide heat pump repair in Charleston, SC.

What are the noises that serve as a warning of trouble to come? We’ve listed some of the most common sounds you don’t want to hear from your heat pump so you know when to call us in.

5 Noises You Don’t Want a Heat Pump To Make

  1. Rattling: Rattling is a noise that is usually caused by loose parts shaking around within your system. In most cases, these parts (screws, or bolts, for example), are still in place but have become loose. Make sure to get these addressed before they break free and cause problems inside your system
  2. Hissing: Sometimes people like to rope together whooshing and hissing as just the sound of air coming from their system. While that is not necessarily false, hissing is not the same thing as the steady whoosh of air from your heat pump. Hissing usually indicates a problem with airflow or a refrigerant leak that needs to be repaired promptly. 
  3. Dripping: Your heat pump utilizes a closed system of refrigerant to move heat in or out of your home. There is no need for water to be used in this process. So if you hear dripping coming from your heat pump, it is a sign of a problem. The dripping that you are hearing could indicate a refrigerant leak, a backed-up condensate drain, or icy buildup within your heat pump that is starting to thaw.
  4. Screeching: Screeching is a highly unpleasant noise that alerts you to a need for prompt repair. This noise is usually going to be created by metal scraping against metal, such as when you have a motor belt that requires more lubricant.
  5. Buzzing: When you run your heat pump do you hear a consistent Buzz or hum during its operation? This may indicate a problem within its electrical components that requires professional repair.
  6. Clicking: Sometimes when you run your heat pump you might hear a brief clicking noise at the beginning of its cooling cycle. This is okay for a brief couple of seconds, but if the clicking continues throughout the use of your system it means there is a problem.
  7. Silence: It’s quiet. Too quiet. Silence is another indicator of a problem because it means that your heat pump isn’t running at all!

You rely on your heat pump pretty heavily throughout the year to keep you comfortable. Make sure to address any repair needs the system may have so that it can continue to be as reliable as you want. You can come to the team at Holy City Heating & Air for any repair needs that you may have.

We provide solutions for every season. Contact us today.

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