Asked by: Petkov Muniochaga
asked in category: General Last Updated: 7th April, 2020

Why is my outside AC unit making a loud noise?

The situation: When your air conditioner turns on, the outside unit makes a very loud screeching noise — like metal on metal. The sound persists until the unit shuts off. Most likely cause: The fan motor bearings are shot. If this is the case, you'll need to have your fan motor replaced.

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Moreover, why is my outside AC unit so loud?

Your indoor or outdoor unit could be so loud for a few of the following common reasons: Most units use isolation padding to absorb the motion noise produced by the internal parts, especially the fan. These pads can wear over time and begin to crumble and break, increasing the noise level of your air conditioning unit.

Beside above, why does my outside AC unit make a loud noise when it shuts off? The compressor is the part of your outdoor unit that pumps refrigerant to and from your indoor unit. It's the same for a compressor with a broken spring. When the air conditioner turns off, the pump loses momentum, which can cause it to knock against the case of the compressor and create a banging or slamming noise.

Keeping this in consideration, how do I stop my outside air conditioner from making noise?

How to Reduce Noise from Outside Air Conditioner

  1. Use a sound absorbing blanket. Generally, when you want to soundproof something, you need to add several layers in between it and the rest of the world.
  2. Install a Fence.
  3. Build the best suitable surface for your air conditioner.
  4. Null the Water dripping noises.
  5. pick the right location for your AC.
  6. Think outside of the box.

How can I make my AC compressor quieter?

Use a Noise Blanket A cost-effective method of sound prevention is having your HVAC technician install a noise blanket around the compressor of your air conditioning unit. This will insulate the compressor and reduce noise without compromising performance or efficiency.

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