Why is my Air Conditioner Blowing Hot Air?
One common question that we get on our service calls is, “Why is my air conditioner blowing hot air?” There isn’t a single, simple answer to this question other than, “Because there’s something wrong with it”.
We’re sure you could have figured that part out on your own, but what we can tell you is the potential problems that your system may have and what you can do to fix them. Sometimes all you can do is call us, but either way, just by reading this sentence, you’re already on your way to a more comfortable summer.
There are four main causes of this problem:
- Dirty Air Filters
- Refrigerant Leaks
- Dirty Condenser (Outdoor unit)
- Tripped Breaker
To give you an idea of what each of those things mean and what you can do to fix them, we’ve written a brief description for each.
Dirty Air Filters
This is the most common issue and one we talk about all the time on our blog and with our customers. Your air filter accumulates dirt which blocks up its passageway and hinders the airflow of your system. This affects its ability to properly cool down and can result in your air conditioner blowing hot air.
What you can do: Replace the filter! This should be checked on once a month and replaced when necessary.
The condenser and evaporator coils in your air conditioner are what help it run properly. They heat up and cool down the refrigerant, working together to create a system that absorbs heat from the air so that it’s cool when it enters your home. If the incorrect charge is in the system, the coils can’t operate properly and can absorb as much heat as you need it do. As a result, you may notice your air conditioner blowing hot air.
What you can do: Give us a call. Once a leak is identified and often times before that, this is an issue that should be addressed by a professional.
Dirty Condenser (Outdoor Unit)
The condenser is the unit that people most often identify with an air conditioner. It sits on the outside of your home and you can see a series of coils that are often caged in by the exterior of the machine. If those coils get dirty (which they will if they’re not cleaned) your system will have trouble pushing the hot air out, which makes the cooling process more difficult.
What you can do: Wash the exterior unit with a hose. If there are any buildups that are too strong to remove with a simple spray, we recommend you book an air conditioner check & clean.
If the breaker trips on your outdoor unit, the furnace, air handler or ductless unit on the inside would be receiving cold air, but it will still run. That means the start of your air conditioner blowing hot air.
What you can do: Reset the breaker for the outdoor unit, once. Any more than once and you may have developed an electrical issue that needs to be addressed, so you should call a professional (Us!).
If you have any questions about what you should do when your air conditioner blows hot air, click here to get in touch with A1.