'Why is my air conditioner not blowing cold air?'– It's the question many homeowners may have asked in recent days – and will continue to do so throughout the coming months.
As we sit on the fringe of the hottest season, there is no better time to remind yourself of the logistics behind your air conditioner – so you can call in help quickly – and stay cool when it matters the most.
Sometimes, saving your unit can be as simple as learning how to clean an air conditioner – but other times, the problem is more complicated. Here's what the experts suggest.
Why is my air conditioner not blowing cold air?
'If your air conditioner is blowing warm air, it is important to diagnose the problem so that it can be fixed as soon as possible. Otherwise, you may find yourself dealing with an uncomfortably warm home all summer long,' say the experts at Thomas HVAC Company in Alabama.
'Each of the problems has different solutions, so diagnosing the issue is the first step before you can even consider fixing the issue.' These are the 4 most common problems you may face with your unit.
1. Thermostat issue
According to the experts at Thomas HVAC, your thermostat has a huge influence over your air conditioning unit. However, they are not alone in their observations.
'Check the thermostat. If the thermostat is set very low or too high, the air conditioner may not be able to produce cold air,' adds Stacy Lewis, an Interior Designer at Eternity Modern. 'An overworked air condition motor does not work properly.'
Therefore, if your AC is not working properly, the solution could be as simple as adjusting the temperature to not provide cool air.
2. Dirty air filter
Another common reason your unit may be blowing cold air is a clogged air filter. This will block the flow of air and cause the unit to overheat.
Knowing how to clean an air conditioner will consequently help you avoid or cure a dirty air filter and, hopefully, allow you to quickly feel cooler air again. As long as filters are kept clean, you can run your AC even when the air quality is bad.
3. Low refrigerant level
The experts at Thomas HVAC also suggest that a low refrigerant level may be preventing your unit from cooling the air effectively. 'Without enough refrigerant, it won’t be able to cool the air,' they say.
This problem is commonly the result of a leak within the air conditioning system that could stem from a faulty valve or evaporator coil. However, it is often hard to diagnose this problem as any leaks typically evaporate as it leaks out of the AC. However, your unit may make a hissing or bubbling noise if this is the case.
4. Malfunctioning compressor
If your outdoor compressor is malfunctioning, it may cause your entire AC system to operate inefficiently, the experts suggest. 'If there is an issue with the outdoor compressor, it won't be able to transfer the air properly.'
You can often diagnose a malfunctioning compressor from unconventional noises (such as rattling and clattering) coming from your unit.
If you wonder, 'why is my air conditioner not blowing cold air?' these are the most common problems you can encounter. If the solution goes beyond a quick clean, it is always best to consult AC experts and always turn off your unit entirely before fixing any issue.
Sign up to the Homes & Gardens newsletter
Decor Ideas. Project Inspiration. Expert Advice. Delivered to your inbox.
Megan is the Head of Celebrity Style News at Homes & Gardens. She first joined Future Plc as a News Writer across their interiors titles, including Livingetc and Real Homes, before becoming H&G's News Editor in April 2022. She now leads the Celebrity/ News team. Before joining Future, Megan worked as a News Explainer at The Telegraph, following her MA in International Journalism at the University of Leeds. During her BA in English Literature and Creative Writing, she gained writing experience in the US while studying in New York. Megan also focused on travel writing during her time living in Paris, where she produced content for a French travel site. She currently lives in London with her antique typewriter and an expansive collection of houseplants.
US hardiness zone 6 explained – and expert advice on what to plant
Everything you need to know about how to garden and what will grow well in USDA hardiness zone 6
By Graham Rice Published
'I would wear this pattern' – this last-minute decor decision proved a game changer in Shea McGee's dining room reno
Incorporating an eye-catching patterned wallpaper and sweeping sidelights, Shea McGee's dining room renovation is sun-drenched and sophisticated. This is a full rundown of the finished space
By Abby Wilson Published
7 dorm room organizing rules for less clutter and more space
Experts offer their top tips for creating a well-organized dorm room, no matter the size, space, or layout.
By Ashley Chalmers Published
How to maximize storage in a small or shared dorm room, according to pro organizers
Find out all the hidden storage zones you might never have noticed
By Ashley Chalmers Published