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Air Conditioner Sounds Like a Jet Engine

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If your air conditioner sounds like a jet engine, it’s time to act now to ensure that your home is sufficiently cooled and warmed during the summer and winter seasons.

Don’t let what at first seems to be just a minor problem with your air conditioner escalate to a bigger problem that calls for expensive repairs.

Air conditioners produce different sounds, and each sound is a probable indicator of a problem with your air conditioning unit.

When the air conditioner sounds like a jet engine, it’s an indicator that the AC’s compressor could be a problem. The compressor is the heart of any AC unit, and the slightest problem with the compressor can significantly affect its efficiency.

What Does it Mean When Air Conditioner Sounds Like a Jet Engine?

HVAC noise is common in almost all air conditioning units. At some point in their lifespan, these units will produce buzzing, rattling, hissing noises, all of which I have previously discussed the causes and possible fixes.

But what does it mean when the air conditioner sounds like a jet engine? There are several common causes I shall be discussing in this guide.

Frozen Air Conditioner Evaporator Coils

Over time, the coils inside your air conditioner’s central system accumulate ice resulting in freezing. In other cases, a refrigerant leak can also result in the evaporator coils freezing due to enough air circulation.

Faulty AC compressor

 as earlier mentioned, the compressor is the heart of your AC system. If there’s a problem with the compressor, either mechanical or electrical, a jet engine sound may occur.

Electrical problems arise due to inappropriate amperage and can be fixed by adjusting the amperage of your electricity supply.

On the other hand, repairing a mechanically faulty compressor is time-consuming and expensive. Your best bet, in this case, would be to replace the compressor.

Damaged Condenser Fan

A faulty condenser fan motor will produce a jet engine noise or buzzing noises as it operates. This is, in most cases, an indicator of an electrical fault or accumulation of debris.

Other but not so common causes of a jet engine sound from your air conditioner include a faulty fan belt, damaged blower fan motor, or loose components in your AC.

However, it’s important to note that loose components will also produce rattling sounds and immediately need to be looked into.

Air Conditioner Sounds Like a Jet Engine Quick Fixes

As I earlier mentioned, whenever your air conditioner produces noise, there are possible culprits depending on the sounds it makes.

Therefore, it’s always important to pinpoint the exact kind of noise you’re dealing with. Makes sure that it’s jet engine-like sounds and not something like humming or banging noises.

To troubleshoot jet engine sounds from your air conditioner, you will need to identify the potential source by inspecting for mechanical problems such as:

  • Dirt/debris accumulation
  • Loose parts/components
  • Unbalanced fan blades
  • Faulty blower
  • Refrigerant leak
  • Abrased copper lines
  • Dirty condenser

Fix Faulty AC Belt

As earlier mentioned, faulty AC belts can cause different noises, including what sounds like a jet engine noise.

This problem is most common in ducted or central air conditioning units. The AC belt plays an important role in the air conditioner by connecting the motor to the fan.

Like other parts of the AC, the belt is bound to wear and tear, causing it to loosen its grip, slip and produce what sounds like a jet engine noise.

During the summer months, the belt is also subjected to frequent expansion and contraction due to high humidity causing it to produce this kind of noise.

For this kind of problem, you will need to contact your HVAC professional to repair or replace the belt.

Fix Refrigerant Leak

The refrigerant leak will cause freezing around the cooling fins hence blocking airflow in the copper lines leading to the indoor AC unit.

This blocking will prevent cool air from reaching your room despite your AC running. The best way to fix this problem is to wait until the ice thaws.

Alternatively, you can contact an HVAC professional to diagnose and solve the refrigerant leak problem for you.

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