6 common air conditioner problems
- Published on June 13, 2024
- Revised on June 14, 2024
- 6 min read
![](https://www.renoassistance.ca/wp-content/uploads/2021/10/Amber-Van-Wort-150x150.jpg)
Amber VanWort
Writer
It can be hard to keep your cool when your air conditioner is on the fritz, especially if it happens in the peak of summer. Luckily, understanding the warning signs for common AC problems can help you address issues promptly before more serious and costly repairs are required. When left unattended, air conditioning problems can quickly get out of hand, often leaving you with a unit beyond repair. More importantly, some of these common problems can negatively affect your health as well. In this article, we’ll go over a variety of common home AC problems and how to spot them. From low airflow and dirty air filters to strange noises and musty smells, keep your eyes peeled for these universal AC problems.
Decreased airflow coming from your AC unit is an obvious sign that something is wrong. And while there are several possible causes to explain the inadequate airflow, many of them are issues you can fix on your own. Some common causes of low airflow include:
When air conditioners stop blowing cold air all together, it’s a sure sign of trouble. If you notice more of a warm breeze coming from your AC unit, there are a few possible causes to look for.
If your air conditioner isn’t turning on, don’t push the panic button. This doesn’t necessarily mean you’re dealing with a broken air conditioner. Before you go comparing new HVAC unit costs, look for the following signs of trouble:
Need to replace your HVAC system?
Unusual or loud noises from your air conditioner are more than just an annoyance–they’re likely a sign of a serious electrical issue. Now, AC units aren’t silent so hearing a light whooshing sound or a click when the unit first turns on is normal. But if you hear hissing, screeching, banging, rattling or excessive clicking, it’s time to contact an HVAC professional. If there’s an electrical smell coming from the AC, immediately turn it off and wait for your air conditioner repair specialist to arrive.
AC refrigerant is an essential aspect of any air conditioner unit. In simple terms, it’s a chemical that, in tandem with the compressor and condenser/evaporator coils, helps turn hot air into cold. A refrigerant leak can lead to reduced airflow, lack of cooling ability and higher energy bills. If you’re not sure how to spot a refrigerant leak, look for these telltale signs:
Leaky refrigerant, sometimes called freon or coolant, is bad for the environment and your health. If you suspect a leak, turn off your AC and immediately call a repair specialist.
Air conditioners rely on clean and clear airways to push cool air throughout your home. So naturally your AC won’t perform as intended when there is dust blocking that airflow. Dust build-up is normal but easy to avoid with regular cleaning. Remember to regularly change your air filters and clean your AC ducts to avoid performance issues.
Understanding basic air conditioner problems and solutions might not be at the top of everyone’s priority list but knowing when something is wrong with your air conditioner could help you avoid certain health risks. When left unattended, common AC problems could lead to:
Your HVAC unit helps clear pollutants from the air. But when dirty air filters are not regularly cleaned, it can trigger asthma and other breathing issues. More serious breathing and health dangers can also occur when a refrigerant leak is left too long.
Your AC unit circulates different pollens and pet dander through the air, which can trigger allergies if you have them. Additionally, if there is mould hiding somewhere inside your unit, the AC will blow that into the air as well. To avoid triggering an allergic reaction, keep up with regular cleaning of your home and air conditioner. Pairing your AC with an air purifier can also help.
We get it, the cost of air conditioner repair may seem daunting at first. However, when you let your dysfunctional AC unit continue running without service you’ll soon feel those costs on your energy bill. It’s best to tackle any issues ASAP to avoid higher bills down the line.
Between steep energy bills and risks to your health and the environment, it’s never smart to delay an AC replacement or repairs. While some repairs are easy to DIY, others require professional help. And that’s where RenoAssistance steps in. We’ve spent years carefully inspecting and verifying our wide network of HVAC contractors. It takes just a few easy steps, to assess your project and then we’ll put you in contact with the best contractor for the job. So don’t wait for your unit to conk out, contact us today and receive up to three quotes for your AC repair.
Amber VanWort is a freelance content writer with a degree in journalism from Durham College. Amber’s work has been published in Narcity, Chicago Tribune, The Belleville Intelligencer, Best Reviews, and more. Her passions include food, travel, and real estate. When she’s not busy meeting her client’s expectations, you can find Amber in the kitchen, elbow-deep in a bag of flour.