Hot Air? 3 Plausible Reasons Why Your Split System Air Conditioner Is Blowing Hot Air

Split system air conditioners blowing hot air is contrary to their primary purpose of cooling down your room, so you know something is wrong when they do. This issue may crop up when you ignore regular maintenance or when an internal component is damaged. This guide equips you with plausible reasons why split system air conditioners blow hot air.

Refrigerant Or Coolant Leak

Leaking refrigerant or coolant could be a potential reason why warm air comes out of split system air conditioners. Low levels of refrigerant could also potentially lead to warm air blowing out of your air conditioner. Refrigerant effectively absorbs existing heat from the air, which is transferred through the system to cool down your room. If the air conditioner doesn't have enough refrigerant or if there is a leak, then the liquid will not be able to absorb heat for transferring cool air into your room. Your unit will then blow out hot air. You will need to get a qualified AC technician to inspect and repair a leak in the system. If the problem is low refrigerant, then it will need to be refilled for your AC to work optimally once again.

Clogged Or Dirty Condenser

A condenser coil is used to capably transfer hot air from inside your room to outside, resulting in cool air blowing through your unit. This condenser coil situated in your split AC's outdoor unit must always be kept clean for optimal functionality. If the condenser coil is clogged, dirty or rusted because of external weather elements, then hot air will not be directed outside and will flow back into the room, where it is emitted from your split AC. Any obstruction near the outdoor condenser should be removed because this prevents proper heat dispensation. Condenser coils need regular maintenance, so make sure you get them cleaned periodically for smooth running.

Clogged Air Filters

Air filters collect dirt and pollutants to allow only fresh, cool air to flow into your room. But dirt collects on these air filters over time, which can obstruct the flow of cool air. When the air filter becomes too dirty, cool air will get blocked and only warm air may pass through your room. An unclean filter can also clog the condensing coils and may trigger a failure in the condenser. This could cause your entire system to break down in time. Air filters should be replaced regularly to ensure that they remain clean for cool air to flow seamlessly from your AC.  

Split system air conditioners need regular maintenance and repairs to prevent warm air from being blown into your room.