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Noises that Indicate the Need for Air Conditioning Repair

Friday, August 8th, 2014 at 7:18 pm

Odd sounds are the best “early warning system” that air conditioners have when it comes to repair needs. Unusual noises emanating from the cabinets of an AC usually mean you should call up professionals and arrange for repair work—before the cooling system faces worse problems and even suffers a breakdown.

Here are some of the more common noises that indicate the need for repairs and what they might mean. Do not, however, attempt to do any diagnosis yourself: repair technicians will track down the specific issues and address them.

For fast and skilled AC repair service in Sanger, contact Shaw’s Air Conditioning. We have 24-hour emergency service available so you will never need to spend long with a malfunctioning air conditioner.

Here Are Some Warning Signs of Air Conditioning Repairs

  • Humming: If you notice an electronic humming sound coming from either the indoor or outdoor cabinet, it might mean that one of the motors is struggling to turn on. The cause of this is often a failed capacitor. A motor that is making the humming sound is at risk of burning out, which can lead to an expensive repair, so call up technicians right away to replace the capacitors.
  • Hissing: A noise that sounds like steam escaping from a pipe is refrigerant leaking out of the system. This is a serious issue, since it will lead to a drop in cooling power and possibly an overheated compressor. The escaping refrigerant is also unhealthy to breathe. Call for repairs to locate and seal the leak, then recharge the lost refrigerant to its proper level.
  • Grinding, screeching: This is usually an over-stressed motor close to burning out. The motor may be overly dirty or has lost lubrication, triggering these unpleasant mechanical sounds. The noise could also come from a dying compressor, and this is one of the most urgent repair problems an AC can encounter.
  • Banging, striking: There are loose mechanical parts somewhere inside the cabinet. A likely source is bent fan blades that are striking the outside fan casing, or (in older ACs) a snapped fan belt hitting other components. You need to call in repairs quickly before the loose pieces start spreading the damage around.
  • Stuttering: If the AC makes stuttering noises each time the compressor tries to turn on to start the cooling cycle, then it is “hard starting,” a situation that can have a number of different causes. An expert can determine the reason the system is hard starting and find a way to put a stop to it before the air conditioner sustains additional wear and tear.

Any unusual noise from an air conditioner needs investigation. Don’t delay in calling for help from professionals.

Shaw’s Air Conditioning is now entering its second decade serving Sanger, CA with AC repair. Look to us for the assistance you need to stay cool.

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