what is causes my ac unit to blow warm air
It's incredibly frustrating when yous just can't get absurd on a hot day, even though your ac sounds similar it's working (it's blowing). Is it you or is it really hot in here? You cheque the thermostat, and in fact the temperature is soaring well above the ready temp. When y'all place your hand over i of the Ac registers, you notice your Air conditioning blowing warm air.
What's going on? Is your AC blowing warm air considering of a uncomplicated issue y'all can fix yourself, or do you need to call in a professional?
Read on to acquire most the virtually common causes of an Air-conditioning bravado warm air, and which ones yous may be able to tackle yourself.
7 common causes of Air conditioning bravado warm air
Your Air-conditioning is blowing warm air because while the fan is operating, something is shutting downwardly the cooling mechanism. Causes include simple things like thermostat settings and poor air menstruum, just as well could be issues that tin spell large trouble, similar electrical problems and refrigerant leaks.
We'll kickoff with the like shooting fish in a barrel problems you tin can fix, and let you lot know when you need the skills of a professional person to diagnose and repair a larger problem.
one. Thermostat issues
Whether yous're worried well-nigh your dwelling house or workplace AC blowing warm air, the first thing to check should be the thermostat. It's a fact: they practise go tampered with, by kids accidentally hitting it with a flying object, or a co-worker turning it off because of beingness too common cold.
Make sure the thermostat is set to Cool and the fan set to AUTO. And, of course that the prepare temperature is actually lower than the air temperature.
two. A clogged filter
Reduced air flow is one of the most common problems that can impede the cooling performance of your air conditioner. Foreign though information technology may seem, your air conditioner really needs warm air flowing over the coils in social club to function properly. Your air conditioner'due south filter is designed to remove dust and contaminants from the air flowing through the equipment. Notwithstanding, an air filter that'south clogged with dust and debris can completely block air from entering the system. When that happens, the coils tin can't remove heat. So your organization's fan just blows rut back into your space.
If you lot haven't had your arrangement maintained in a while and your AC is blowing warm air, the side by side step is to check your air filter, and change it if needed.
Related commodity: Why and how to alter an air filter
3. Render vents airtight or blocked
Hither'southward another air flow issue that can result in your AC blowing warm air. Is it possible that vent grilles were closed over the winter and never re-opened? Or (this is common in offices!) practise you accept furniture or other obstructions blocking them?
Accept a walk around your infinite and make certain all registers and returns are open and allowing air to catamenia freely.
iv. Disconnected or leaky ducts
It's besides possible that you take air flow problems that you can't see… in your ducts. If a duct has holes, cracks, or is completely disconnected, return air may not exist making information technology back to the unit. Or cooled supply air may be getting wasted in your walls, attic or crawl space, and the Air-conditioning is bravado warm air as a result.
If your ducts are attainable, you might want to take a look. It's not uncommon for damage to occur during structure projects, or from birds or rodents getting into them. On 2nd thought… this might be an area where you're better off getting professionals to audit the condition of your ductwork.
Related article: Poor Air Flow from Your Ac? Check for Duct Problems
v. Loss of ability to the outdoor unit
Many air conditioning systems accept an indoor evaporator/air handler unit and and outdoor condensing unit. (In areas like NYC where in that location's not much access to outdoor space, your "outdoor" condensing unit of measurement may exist in a mechanical room). If the air handler is working fine, the fan volition still blow air into your space. But without the condenser unit of measurement working properly, there volition be no cooling; hence, your AC blowing warm air.
That scenario can happen when your condenser unit of measurement loses power, oftentimes due to a diddled fuse or tripped excursion breaker. If y'all discover that your outdoor AC unit keeps tripping the circuit billow, read this to notice out what to do next:
Why is my air conditioner tripping the circuit breaker?.
Of import: Never try to diagnose electric issues yourself unless you are a trained electrician or HVAC proficient. Live voltage is not something you lot want to experiment with!
There is 1 thing you can check, all the same: your emergency shutoff switch. It may have been accidentally close off, cutting the power to your condenser unit of measurement and leading to your Air-conditioning blowing warm air.
half-dozen. Dirty condenser coils
One of the of import functions of your condenser unit is releasing heat to the outside of your building. The condenser coil is responsible for that job. Considering it's exposed to the elements, it tin can go caked with dirt and grime, non to mention leaves and trash. Eventually that impedes the operation of the coils, and your organization tin't cool effectively, so the AC is bravado warm air.
seven. Refrigerant leak
Refrigerant is the substance that flows through your ac organisation and (to brand a long story short) makes the cooling happen. It'due south a closed loop, so you should not need to add refrigerant unless there's a leak in your refrigerant line or the coils. When that happens, your organization loses refrigerant charge and cooling power. Depending on the size of the leak, cooling loss tin can happen slowly or all at once, only somewhen your Air-conditioning is blowing warm air.
Never allow anyone to add more refrigerant without fixing the leak! If you do the problem will only happen once again. Additionally, if your arrangement uses the refrigerant R22 (also known every bit Freon)… which is likely if it's older than ten years or and so… that refrigerant is being phased out as per the EPA come January 2020. That ways information technology will get increasingly expensive to fix, and you lot will need to think most replacement in the about future.
Detect out more:
Regular maintenance prevents nigh causes of Air-conditioning blowing warm air
If you did find a modest problem you lot could prepare hands, congrats! Now, we bet you want to brand certain this doesn't happen again. Here's your answer to uninterrupted condolement all summer long: preventative Air-conditioning maintenance. Check it out: yous'll exist glad you did!
Source: https://aristair.com/blog/ac-blowing-warm-air/
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