A Plus Quality Inc.

Why is My Outside AC Unit Making a Loud Noise? 

July 31, 2020

Why is My Outside AC Unit Making a Loud Noise? 

Metallic Clicking Sound: Debris
There are several reasons an outside AC unit is making a loud noise. The outside AC unit has a large fan that rotates beneath a spiral grate that is part of the unit's housing. The blades on the fan are relatively large with thick metal blades. If the grate on the housing also has large spaces, debris such as twigs, acorns and small branches fall between the grate and fan causing the fan blades to beat against the debris. The sound this makes is a metallic clicking as debris hits fan blades. If this is the case, turn the unit off and carefully remove the debris without damaging the blades or grating.  Should the debris be difficult to remove, you will need assistance from A-Plus Quality, HVAC services in the Greater Toronto Area. A certified technician will remove the grating from the housing and extricate the debris that is causing the loud noise. 

Screechy and Metallic Sound: Fan Motor
If the loud noise from the outside AC unit sounds more screechy and metallic, the fan motor may need repair or replacement. 

Squealing Noise: Fan Belt
If there is a loud squealing noise, the problem in this case may be the fan belt. When a fan belt makes a squealing sound, turn the unit off to prevent further damage and contact us. The belt will need to be removed and replaced by a certified technician from A-Plus Quality, HVAC services in the Greater Toronto Area.

Gurgling Sound: Refrigerant Leak or Condensate Drain Line
One other noise that occurs with an AC unit is a gurgling sound when the unit is operating. This may be due to a refrigerant leak or the noise is coming from the condensate drain line. With this problem, turn the unit off until an HVAC professional determines where the gurgling sound is coming from. If there is a refrigerant leak, this requires repair and replacement of refrigerant. 

How to Avoid Costly Problems with an Outside AC Unit
One of the most timely and cost-effective ways to avoid problems with an outside AC unit is regular maintenance. In addition, when you do notice a problem it is best to have a certified technician from A-Plus Quality, HVAC services in the Greater Toronto Area, check out the issue and make any necessary repairs. If you are having troubles with your air conditioner, contact us today.

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Client Testimonials

  • It was a Friday night and our furnace wasn't working...so I phoned A Plus Quality and Jack was out to our house within half an hour. He quickly diagnosed the problem and replaced it with one he had. Thanks Jack for your speedy resolution to our problem.

    Liam
  • I called Shak... and he was great, my furnace was not working, he was out at my house within 2 hours and fixed the problem right away we have been toasty warm since... Great work you really live up to your name A PLUS Quality.

    George
  • My aging furnace conked out on a very cold evening. Sent an S.O.S.... in no time dispatched one of his highly qualified technicians. Furnace had to be replaced. Mission accomplished in less than 24hrs. That is what I call professional service.

    Salam
  • Outstanding service all around. (Thanks so very much!) I would highly recommend you to family and friends. All of you were knowledgeable and professional in every way. The technicians were efficient, helped moved a few heavy boxes, and were careful in my house. I especially appreciate that Jack, who gave me good options, helped my choose what was appropriate for my house (to replace my 25 year old furnace) and at a very fair price. Thanks again!

    april Kassirer
  • We needed a new boiler fast and they were faster than the other places we got quotes from, they were more sincere, less sales-oriented , and they had more technical knowledge and were able to explain things in layman's terms. They were transparent in their pricing and everything came out as estimated after the boiler was replaced. They didn't try to sell us maintenance packages or anything like that, just gave us the service we needed. We feel lucky to have stumbled upon them.

    Brian Robertson
  • Came in quickly for the assessment, and was back for repairs the next day. Work was done promptly and exactly as quoted. Took care to be clean and maintained social distancing!

    Craig Wattie
  • My furnace stopped working last night, A Plus was able to send a technician that same night! Tech was very honest and professional, would definitely reccomend.

    Chris M
  • I can highly recommend A Plus Quality for air conditioner and furnace replacements. Very Fast and friendly service with technicians who really seem to take pride in their work and pay attention to every detail. Very knowledgeable and willing to be patient to answer any questions or concerns you may have.

    Craig Walker
  • Someone answered the phone very quickly, technician arrived at the scheduled time. Technician worked efficiently and our furnace was fixed very quickly. Highly recommended.

    James Yuan
  • Prompt response... Furnace problem fixed. Professional work.

    Lucian Balu
  • Amazing and reliable service. I have been a customer for over 5 years. From maintenance to furnace replacement I have always had great experience with A-plus. I strongly recommend them.

    Ayad F
  • Service was quick and technician explained and answered all question. Very happy

    Anna Forestieri
  • Service man arrived on time and explained in detail what he did ... very helpful. I would strongly recommend this company.

    Brian Anderson

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FAQ

  • What are mini-split advantages?

    Just as the name implies, a “mini-split” system is a “split system” however available in smaller capacities, for single room to whole house conditioning. Mini-split systems may range from as small as 9,000 BTUh per hour, comparable to say, a small window AC unit, for individual room use, up to 4 and 5 ton capacities for “Room By Room” (also known as “Zoning”) and whole house conditioning. With near universal design, mini-splits are “heat pumps” which provide both heating and cooling for a home. Here are key advantages when compared to traditional split systems:

    Efficiency- Mini-splits are highly engineered systems which offer attractive operating efficiencies, in many instances, eligible for utility company rebates.
    Heat Pump- Most mini-split systems are heat pumps, providing year-round comfort.
    Solar friendly- Due to very low power requirements, mini-splits are an ideal complement to “Net Zero Energy” homes, or any home using renewable power.
    Carbon footprint- Mini-splits are 100% electric, with zero operating emissions of any type.
    Zoning- Most mini-split manufacturers offer systems capable of room-by-room “zoning”, to account for peak demands of a room based upon construction type, exposure orientation and usage.
    Variable capacity- Mini-splits are typically DC inverter driven. That is, a variable speed compressor which modulates in proportion to instantaneous demand. Most conventional split systems, by comparison, operate with an ON-OFF strategy. (Would you use an ON-OFF switch as the accelerator in your vehicle?)
    Location, Location, Location!- Mini-split outdoor units are compact; they can be located far away from noise-sensitive areas, such as bedrooms and home offices. Mini-split indoor units have the ability to be installed where conventional systems cannot.
    They’re perfect for additions and remodels where access to current HVAC system is difficult to access.
    Modern mini-split systems are remarkably quiet; in fact, many times their operation is unnoticed by the end user.

  • What is a heat pump?

    Heat pumps use electricity to move heat from a cool space to a warm space, making the cool space cooler and the warm space warmer. During the heating season, heat pumps move heat from the cool outdoors into your warm house and during the cooling season, heat pumps move heat from your cool house into the warm outdoors. Because they move heat rather than generate heat, heat pumps can provide equivalent space conditioning at as little as one quarter of the cost of operating conventional heating or cooling appliances.

  • Water is Leaking on my Furnace

    Water falling on to the furnace can harm your heating unit by affecting the control boards and other components enclosed in the furnace. There can be many causes to the water overflow, but the most common cases in the summer is the ice build up inside the evaporator coil due to low refrigerant level. Water build up can also be due to the evaporator coil having a crack on the base, if this is the case contact us by booking an appointment or call us today to have a technician come have a look at your unit and repair this issue before it causes excessive damage.  

  • Furnace is blowing cold air in Winter?

    This can be due to Ignition lockout, sometimes could be resolved by resetting the power  and if this does not resolve the issue you should contact a certified gas technician from A-Plus Quality to get this problem resolved!

  • Why is there ice building up on the copper pipes?

    There can be many reasons why the refrigerant pipes are freezing up but the most common issue is low refrigerant levels. If your AC unit has ice buildup turn off the unit for at least 4 hours and call us at 416-410-0337

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