Worn or Missing Rubber Seals
This is the most common issue when it comes to loud noises and strong vibrations coming from the outdoor unit. As it is installed outside, the unit is exposed to various weather conditions (rain, sun, wind, etc.) throughout its usage.
Over time, the rubber seals (gaskets under the base of the unit) can become hardened, worn out, or completely damaged, creating gaps.
Alternatively, the screws holding the base in place may have loosened, causing the unit to vibrate and create loud noises when the fan is running. You can simply replace the rubber seals or tighten the screws to fix this issue.
Solution: Inspect and replace the rubber seals or tighten the screws to secure the base. This should eliminate the loud noises and strong vibrations coming from the outdoor unit.
Dirty Outdoor Unit
Many households tend to focus only on cleaning the indoor unit, neglecting the outdoor unit. Over time, the outdoor unit can become dirty due to exposure to the outdoor environment, causing the internal machinery to operate less smoothly and produce unpleasant noises.
Solution: Clean the outdoor unit by using a small brush to remove dust and dirt from the fan, block, and heat exchanger.
Only tightening the screws on one side can cause imbalance and vibration issues.
Then, thoroughly clean the entire outdoor unit with a hose and diluted soap. Finally, dry it off, reassemble the cover, and restart the unit to check if the noise persists. It is recommended to clean both the indoor and outdoor units regularly, every 3 to 6 months.
Outdoor Unit Fan Issues
Problems with the outdoor unit’s fan are common, especially during the rainy season. In such conditions, the fan operates continuously and is often exposed to rainwater.
This exposure can cause the internal oil to dry out, resulting in unpleasant noises. Additionally, the fan may crack, causing it to spin out of alignment.
Long-term exposure to rainwater can cause the fan to dry out, leading to unpleasant noises.
Another issue that may arise is when the electrical wires inside the outdoor unit come into contact with the fan, creating unwanted noise.
Solution: In this case, it is best to contact a technician for maintenance or repair work.
Notes on Preventing Loud Noises and Strong Vibrations
To minimize the chances of your air conditioner experiencing loud noises and strong vibrations from the outdoor unit, consider the following tips:
Regularly clean your air conditioner every 3 to 6 months, depending on usage frequency. If you use your air conditioner frequently, clean it every 2 to 3 months. Otherwise, clean it every 6 months if used infrequently.
Do not install the outdoor unit inside the house, as the heat it emits can significantly increase the room temperature.
Consequently, the indoor unit will have to work harder to cool the air, resulting in higher energy consumption and reduced equipment lifespan.
Regularly check that the outdoor unit’s mounting bracket is secure to prevent strong vibrations.
Source: Giadinhxahoi
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