Why Is My Heat Pump Making Noises?

Posted on: December 20th, 2016 by AndyLewEMS No Comments

Snow covered House with visible Heat Pump

Your home’s heat pump provides reliable, efficient comfort all year long. However, winter can cause a heat pump to make some strange noises. The type of noise you hear will determine its cause and how serious the issue is. The Andyman can help you determine what your heat pump is telling you with those strange noises this winter.

Normal heat pump noises for Charlotte homes

As with any HVAC equipment, a heat pump is made of mechanical parts that make noise when in use. This is especially true in winter when cold temperatures cause the heat pump to work non-stop. Your heat pump will periodically enter defrost mode during winter, switching the flow of refrigerant and making a loud “whooshing” sound. This is part of normal operation and is no cause for concern. Neither is a condenser that cycles on or off and can cause a repetitive but short-lived bumping noise. In addition, the outdoor unit is likely to vibrate during operation. This can often be solved simply with insulation and padding installed by Andy Lewis.

Have these heat pump noises checked out by Andy Lewis

There are some noises a heat pump can make that need servicing. Homeowners in Charlotte often note a buzzing noise that could be caused by a faulty fan motor. Fan blades may also strike objects like twigs or icicles that may cause a scraping or tapping sound. This can damage the fan blade or overwork the motor as well. If you hear a high pitched hissing or intermittent popping sound, your unit may be leaking refrigerant. Refrigerant is what allows the heat pump to move heat into your home during cold weather, so you’ll want to be sure to have this addressed as soon as possible.

Other heat pump maintenance tips

Even if you don’t hear any strange noises, your heat pump still requires regular maintenance. Proper drainage is critical for a healthy outdoor unit. During defrost mode, ice on the unit melts. If this water can’t drain properly, it will freeze again inside the equipment, causing leaks or potential failure. Clear out all leaves and debris from your heat pump to ensure this water can safely drain out through the bottom.

If you’re not sure what’s causing your heat pump to make noises, it’s best to schedule professional inspection. Andy Lewis Heating & Air Conditioning technicians are trained to identify any heat pump issue and provide you with the best solution for your home this winter. Call to schedule service today!

(704) 391 9191

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