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Why Your AC Might Be Blowing Hot Air And How You Can Fix It

When summer arrives, and you start preparing your home for the heatwave ahead, there’s a chance you can face problems with your heating and cooling systems. This can happen when your air conditioner has not been serviced in a long time.

Whether it is a routine maintenance job, or your AC is blowing hot air, you can always rely on professional heating and cooling specialists in Melbourne to get it up and running before it gets scorching hot.

Top reasons why your AC might be blowing hot air

When you first notice your air conditioner is not working properly and is blowing hot air, a lot of questions start to pop up in your mind. What could be wrong with it? What’s causing my AC to blow hot air? Should I try a DIY fix? 

Before you even think about fixing the problem, however, let’s try to understand what’s causing it.

Here are some reasons why your AC might be blowing hot air;

  • Dirty and Clogged Air Filter: When the filter gets dirty, the air conditioners fail to move air through the system properly. As a result, the blower is strained, and the AC starts blowing warm.
  • Thermostat Settings Errors: The hot air issue you are facing might be due to the wrong thermostat settings. Make sure that you have set the fan on “auto” and have selected the “cool” setting.
  • Evaporator Coils Have Frozen: The evaporator coils of an air conditioner work to extract heat from the air inside your home to initiate the cooling process and produce condensation. As more moisture collects on these coils, they might freeze and prevent heat transfer.
  • Leaking Refrigerant: When the refrigerant is leaking, your AC fails to get the appropriate charge for completing the cooling cycles. Always get in touch with the best heating and cooling specialists with proven experience in refrigerant handling to take care of refrigerant leaks.
  • The Outside Unit Not Getting Enough Power: If the outdoor unit is not getting enough power supply, the evaporator fan stops running. So, make sure that the outdoor unit is getting the proper power supply. Check the electrical panel and make sure that the breaker hasn’t tripped; reset if required.

There may be other issues causing the hot air problem, but it’s mostly due to one of the reasons mentioned above.

Steps you can take to fix your heating and cooling system.

Although a thorough cleaning of different components of your air conditioner can help the unit run more efficiently and fix the hot air problem, here are some steps you can take to fix the problem.

Replacing the filters- This is a simple step that could add some life to your heating and cooling unit. Take some time out to ask about your filter location so you can regularly clean or replace it when needed

Clear and clean coil fins– The condenser and evaporator and coils can collect some serious dirt over time. By cleaning the coils, you can ensure that your airflow and insulation is perfect and there is no excess dirt that could disrupt the operation of your air conditioner 

Speak with experts: While there may be a temptation to try a quick DIY fix, it is always better to let the professionals handle it for you. There could be a bigger underlying problem causing the apparent hot air issue.

It’s always a good idea to get a professional to examine your heating and cooling system and determine the root cause.

Schedule an inspection with HeatCool – the best heating and cooling specialists in Melbourne

If you are considering upgrading your system, you might even be eligible to participate  in the Home Heating and Cooling Upgrades Program, receiving up to $1000 in rebates for upgrading to an energy-efficient split system air-conditioning unit.  You can view more details here.


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Home Heating and Cooling Upgrades Program

DSV Air has recently merged with HeatCool. We are still able to help you with all of your requirements, so please contact us on 03 9797 0505.