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4 Heat Pump Noises You Shouldn’t Ignore in Clayton, MO

Heat Pump

Some sounds from your heat pump are normal, but certain problematic noises warrant immediate attention. Ignoring the following four troublesome sounds from your heat pump could lead to costly repairs or a system replacement, and it could even jeopardize the safety of your home in Clayton, MO.


Loose cover panels are a common culprit of rattling noises and are often caused by screws that have loosened over time due to the system’s constant vibration. Rattling coming from the outdoor unit might be due to debris bouncing around the heat pump’s fan. Scheduling an annual maintenance appointment can help ensure all components are in place.


Fan blades hitting another component, which is often the result of the fan becoming unbalanced, could be a reason for the banging noise. Another possibility is that debris entered the system and is getting knocked around by the fan and hitting different parts. Constant metal-on-metal contact can damage the fan blades and other components, potentially leading to costly repairs or even replacement if left unchecked.


Grinding noises in a heat pump are typically associated with motor bearing problems. These bearings are critical to the operation of the motor, reducing friction and allowing smooth functioning. Over time, the bearings can wear out or become damaged, resulting in an unsettling grinding sound.


Buzzing noises usually have to do with the electrical system in both a normal and abnormal way. The electricity-run heat pump will usually produce a barely noticeable buzzing noise as it goes about its daily operations, but an excessively loud buzzing noise could signal a problem. If you notice the latter, call an HVAC service technician and schedule an immediate appointment.

Don’t let strange heat pump noises cause you unnecessary stress. Contact Fresh Air Heating & Cooling today to schedule a professional heat pump service and ensure your system is performing at its best.

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