You can easily fix a noisy outdoor AC unit by following these simple tips. During the hot summer months, air conditioners are working overtime, and if yours starts making unusual loud noises, it’s time to inspect the outdoor unit before calling for repairs.
Missing or Old Rubber Padding
One of the most common reasons for a loud and vibrating outdoor unit is the absence or deterioration of rubber padding. The outdoor unit is exposed to harsh weather conditions, including rain, sun, and wind. Over time, the rubber pads or cushions under the base of the unit can harden, crack, or completely wear out, leaving gaps.
Additionally, if the base mounting screws are loose, the fan in the outdoor unit will vibrate and create noise. Tightening these screws or replacing the rubber padding can easily resolve this issue. However, if the installer neglected to include rubber padding during the initial installation, this is a serious oversight that should be addressed immediately. Having to rectify such mistakes can be frustrating for many homeowners.
The absence or deterioration of rubber padding can lead to a loud and vibrating outdoor unit.
Lack of Regular Cleaning
When the outdoor unit is not cleaned regularly, dust and dirt can accumulate, leading to inefficient operation and unwanted noise. It is important to maintain the unit to ensure smooth and quiet performance.
Foreign Objects in the Outdoor Unit
Another possible reason for loud noises from the outdoor unit is the presence of foreign objects. This situation is similar to the third cause, but instead of gradual dust buildup, a sudden intrusion, such as a mouse, lizard, or other small creature, could get stuck and cause a ruckus.
This can result in loud noises and unpleasant odors emanating from the unit. If you suspect this might be the case, immediate inspection and remediation are necessary.
Foreign objects, such as small animals, can suddenly intrude and cause loud noises from the outdoor unit.
Outdoor Fan Issues
During the rainy season, the outdoor fan operates continuously and is exposed to rainwater, which can dry out the lubrication in the unit, resulting in annoying noises. Additionally, if the fan blades are damaged or broken, the fan will not spin smoothly. Internal wires in the outdoor unit may also come into contact with the fan, creating a loud disturbance.
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