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Repair Tips 101: Common Heat Pump Sounds

Learn more about the signs of heat pump problems that can indicate it’s time to schedule heat pump service in West Linn

Heat pumps are unique in the HVAC world. They operate differently than the other air conditioners and heaters. But along with this unique operation comes some unique challenges too. While heat pumps are very reliable, they are not without issues from time to time. 

You can keep reading to learn more about the signs of heat pump problems that can indicate it’s time to schedule heat pump service in West Linn. Then give our team a call to schedule an appointment for your home. It’s a great way to make sure that your heat pump is ready to provide heat all winter long without any hiccups.


Banging can happen inside of your air conditioner when any large component comes loose. It is particularly concerning if a piston pin or connector rod comes loose inside of your compressor. While all components inside of your air conditioner play equally important roles, your compressor is one of the primary components in cooling cycles, and a very expensive one to replace if it sustains damage. When you hear a banging sound, you should turn off your air conditioner immediately and give us a call to schedule service before the loose component can do too much damage.

Clanking or Clanging 

Clanking or clanging sounds are very common when fan blades are bent or loose. The metal of the loose fan can knock up against other surrounding metal surfaces and result in a clanking or clanging sound. Allowing the sound to continue can mean that your fan will get looser and looser or more bent until your AC stops working completely. Repairing the problem earlier will be cheaper and easier than putting off service until the problem is significantly worse.


There are a variety of problems inside your air conditioner that can result in a buzzing sound. One of these problems comes from the isolation feet on your air conditioner. If one of the feet becomes unbalanced, it can result in a buzzing sound due to vibrations when your air conditioner is operating. 

Buzzing can also come from the compressor if the amps are off, or from the capacitor if there is an electrical issue. The bottom line is, a buzzing sound coming from your air conditioner should be concerning. Whether you hear buzzing once or persistently, you need to call and schedule service.


When you hear squealing coming from your air conditioner, it’s a sign that there is too much pressure building up inside of the system. The result of higher pressure is that air squeals as it is escaping the AC. Our team needs to troubleshoot and figure out what is causing the increase in pressure to fix that problem and prevent it from happening again. A lot of pressure inside of your air conditioner can put a strain on the system and lead to an AC breakdown if not a much shorter lifespan.

Hissing or Bubbling

When your air conditioner hisses or bubbles, that is a sign that you have a refrigerant leak. Hissing means that the refrigerant leak is in its gas form while bubbling means that the refrigerant leak is in its liquid form.

Both are equally dangerous for your home and family. Refrigerant is a dangerous chemical that is only safe when it is airtight inside of the lines. A leak needs to be addressed right away for safety reasons as well as for AC operation.

Contact Chase Heating and Cooling today to schedule an appointment with our professionals. We're "Keeping Homes Comfortable In All Seasons."