How to a Fix Noisy Window Air Conditioner

Nov 19, 2021

Your air conditioning system is responsible for delivering cool air throughout your home. Thankfully, a typical HVAC system will last around 15 years before it needs to be replaced. However, it’s made up of several components that can break down along the way and shorten its lifespan. Unfortunately, catching these issues isn’t always as easy as your unit shutting off.

Sometimes symptoms pop up around or inside your home that can signal the need for repairs. So, how do you know if your AC is doing its job correctly? Our experts at Hobson AC have the answers. Keep reading to find out ways to be sure your AC is maximizing its efficiency.

To schedule an AC inspection with our experts, call us today at (817) 341-5142. 

3 Common Signs Your AC Isn’t Working Correctly

If you notice these common signs your AC isn’t working correctly, you should call a professional HVAC technician to inspect and repair or replace your system:

  • Warm air
  • Irregular cooling cycles
  • Foul odors

Warm Air

Warm air can mean several things in the AC world. While it may be an easy repair like restoring your fan or fixing thermostat functions, it can also signal the need for serious repairs like managing refrigerant leaks and electrical wiring in your HVAC system. Serious issues should be handled by professionals because electricity and chemicals are dangerous and can be deadly.

Irregular Cooling Cycles

The size of your unit can impact its cooling cycles. While an AC unit being too small for a room or home is a problem, one that is too big also causes issues. A unit that is too large for your home will shut off before a full cooling cycle is up because it reaches the intended temperature too quickly. This allows the room to heat back up before the next cooling cycle starts.

Irregular cooling cycles can also be due to a safety feature on your unit. A modern HVAC system may cut a cooling cycle if it detects voltage that is too high, in order to protect you and your family from electrical fires. Window air conditioners are often sold in 110-volt models, while central air systems need double the power to operate. 

Foul Odors

Depending on which strange smells your AC unit is emitting, it can mean different issues. Musty odors that have a hint of woodiness often signal mold or mildew growing in your unit, while a dirty sock smell likely indicates the need for a filter change. However, some odors can be dangerous, like a gas smell.

If you smell gas in your home or coming from your air conditioning system, you should open as many windows as you can and quickly call your local fire department to inspect your home for a potential gas leak. Gas leaks can poison humans and animals and cause fires in your home.

Trust Hobson AC With Your AC Repairs and Replacements

At Hobson AC, we understand the strange symptoms your HVAC system may be experiencing. Our qualified team can handle any of your AC repair or replacement needs. Serving the Weatherford area since 1962, we are leading experts in the HVAC industry.

Call our team of professionals to schedule your appointment today at (817) 341-5142. 

One of the most common problems with window air conditioners can be unusual noises. Those noises can range from an annoying rattling sound to loud hums, and whether they are bearable or not, you should never ignore them. They can lead to serious issues resulting in costly or irreversible problems.

The type of noise usually helps identify the source of the problem, such as loose parts making noise, but it’s always a good idea to call a professional when you start hearing noises that normally don’t go along with the normal operations of your window unit. The air conditioning repair specialists at Comfort Experts are prepared to give your window unit a once-over and determine not only the cause of your problem but the best way to handle it. Here are some of the things they will do.

Make Sure it is Installed Properly

One of the most common problems a window unit can have is improper installation. The vibration from an improper installation can cause your window unit to shake against the frame. Our experts will test the sturdiness of the installation and fix it immediately if that’s the problem.

Loose Screws

Vibration loosens screws, and loose screws can cause the entire unit to make rattling sounds. When the technician opens your unit, that’s one of the first things that will be fixed if it’s the source of the problem.

Coil Fins

When coil fins are clogged with dirt, they can make an irritating noise. Professionally cleaning the coil fins ensures the fins are in proper working order, and that will also make them quieter. Bent fins can also cause a loud hum, and straightening them with a fin comb fixes that problem.

Check the Fan Blades and Motor

When your window unit makes a grinding sound, a possible cause may be insulation or something else is stuck to the fan. To check that, the fan needs to be inspected to ensure it spins properly. Uneven fan blades can also cause a problem, and they may need to be replaced if that occurs. Lubricating the fan motor will also cut down on noise if the motor housing is not permanently sealed.

When it comes to maintaining your home comfort with a window unit, remember that everything mechanical and electronic needs to be inspected regularly to ensure it’s working properly. When it isn’t working the way it should, give Hobson AC a call.


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