Why Is My Ductless HVAC System Making So Much Noise in Palm Desert, CA?

Ductless HVAC systems are energy-efficient and quiet HVAC units for heating and cooling your home in Palm Desert, CA. If you are hearing unusual noises coming from your system, this indicates that something isn’t working properly and needs attention. Let’s explore some common noises made by ductless HVAC systems and what they could mean.

Buzzing or Vibrating

A buzzing noise is often due to an issue with the outdoor unit’s electrical system. A vibrating noise likely indicates that there are loose components like fan blades. Any of these problems should be addressed and repaired by a qualified HVAC professional.

Grinding

Grinding sounds usually signal that there is friction between moving parts within the system that require tightening and/or lubrication. These parts include motor bearings, a blower wheel, or a fan motor. You could hear grinding noises from either the outdoor or indoor component of the ductless system.

Hissing or Bubbling

A hissing sound is a sign that your ductless mini-split system is leaking refrigerant. Bubbling noises indicate that there is air in the line that is displacing the refrigerant. These noises require immediate attention from your HVAC technician as refrigerant can cause adverse health issues if not handled properly.

Rattling

Despite the lack of ducts, your system is still at risk for debris to accumulate on and inside the condenser. Twigs, pebbles, acorns, grass clippings, sand and more will contribute to a rattling noise. Having your ductless system serviced and cleaned by our skilled team keeps debris at a minimum.

The noises you hear coming from your ductless HVAC equipment in Palm Desert, CA could be telling you that your system requires service. Contact Palm Desert Air Conditioning and Heating Co. to schedule repairs or seasonal maintenance for your ductless mini-split system and all of your HVAC equipment.

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