Instead of blowing cool air, your AC starts blowing hot air! It’s maybe a sign something’s not right inside your cooling system. Let’s break down the usual suspects and how to repair with DEEPCHILL, your trusted air conditioning Gold Coast service.
Why does the AC starts blowing hot air?
Wrong mode on the remote
One of the most common reasons your AC starts blowing hot air is because the wrong mode was accidentally selected on the remote. Most air conditioners have several modes, each serving a different purpose. If your AC starts blowing hot air, you might have switched to Heat or Dry mode by mistake. Make sure it’s set to Cool to get the chill back.
The AC hasn’t been cleaned for a long time
Over time, dust builds up inside the AC, especially on the indoor unit and filters. When the cooling coils are covered with dirt, cold air can’t circulate properly and the AC may blow warm air or cool less effectively.
Low refrigerant (gas) level
Refrigerant gas plays a key role in cooling. If your AC is low on gas or has a leak, it won’t be able to cool the air properly, leading to warm airflow. Signs your AC might be low on gas include:
- The room doesn’t get cool even after hours of running
- Weak cold airflow
- The outdoor unit isn’t releasing heat.
- Outdoor unit not working
The outdoor unit is responsible for releasing heat to the outside and keeping your room cool. If it stops working, the system can’t cool at all. With older units, the indoor unit may keep running while the outdoor unit stops, causing hot air to blow instead of cold.
Blocked refrigerant pipes can lead AC starts blowing hot air
The cooling system relies on a closed loop of refrigerant flowing through pipes. If these pipes get blocked or bent, the refrigerant can’t circulate properly, leading to poor cooling or even warm airflow.
Blockages often happen because of:
- Dust or debris inside the pipes
- Poor installation or maintenance
- Physical damage, such as bent or crushed pipes.
- Faulty temperature sensor
Your AC’s temperature sensor detects the room temperature and adjusts the cooling accordingly. If it malfunctions, the system may misread the temperature and blow warm air instead. In this case, the sensor should be checked and replaced if needed.
How to fix an AC starts blowing hot air?
Check and adjust the remote settings
When your AC starts blowing hot air, the first thing you should do is check the mode on your remote. Make sure it’s set to Cool mode for proper cooling.
Clean your AC regularly
To keep your AC running efficiently, it’s important to clean the indoor unit and filter regularly about every 3 to 6 months, depending on your usage and the environment. Regular cleaning helps prevent dust buildup, improves cooling performance, saves energy and extends the life of your unit.
Check and refill refrigerant gas
If you suspect your AC is low on refrigerant, call a professional technician to inspect and refill the gas if needed. This will help your AC cool better and prevent more serious damage in the long run.
Inspect the outdoor unit and compressor
If the outdoor unit isn’t running, ask a technician to check the compressor, fan and start capacitor. If any of these parts are damaged, repairing or replacing them will help your AC return to normal operation.
Use professional repair services
When you’re unsure what’s wrong, it’s always best to call a trusted air conditioning repair service Gold Coast. Professional servicing ensures the problem is fixed correctly and helps your system stay cool and reliable for longer.
Your AC should keep you cool, not sweaty. If your AC starts blowing hot air, reach out to DEEPCHILL, your trusted air conditioning repair Gold Coast service. With expert care, we’ll get your system running smoothly again!
