5 Signs Your Air Conditioner Needs Repair ASAP  

The air conditioning (AC) unit may be one of the most frequently used appliances in the household, especially during summer. At times temperatures can go to extremes, and it may seem impossible to feel comfortable inside a home without something that could regulate the heat.

However, many homeowners fail to follow through on the recommended care and maintenance for their AC units which results in damage or malfunction. When this happens, it could be a nightmare for the household especially when the heat is unbearable.

While the owners can do the cleaning on their own, repairing any damage is usually performed by heating, ventilation, and air conditioning (HVAC) specialists as the AC system can be quite complex to handle. This is why there are many companies providing services for maintaining HVAC systems. For instance, there are many heating and cooling Canberra-based specialists who offer various services when it comes to air conditioning.

To avoid being trapped in summer heat inside your home, it’s essential to take proper care of your AC units and take quick action if you notice any signs of malfunction. If you’d like to know how to identify possible malfunction in your unit, the following article describes some of the common signs of damage and their possible causes.

  1. Blowing Warm Air

One of the common signs of a faulty air conditioning unit is if it’s unable to produce cool air. This may be a sign that the heating and cooling mechanisms of the unit are malfunctioning.

Before calling an HVAC specialist, you can check first if the thermostat and the fan are set to the correct temperature and function. If there are no problems with the fan and the thermostat settings, the problem may be due to dirty coils inside the unit.

The evaporator coils at times and accumulates dirt and debris which could get in the way of producing cold air. This is why experts recommend having an AC unit cleaned at least twice a year especially if it’s regularly used.

Having insufficient refrigerant is also one of the common reasons why it blows warm air. The refrigerant is a chemical compound key to producing cold air, and having less refrigerant in the system could mean that there’s damage inside the unit which caused it to leak out.

  1. Leaking

The AC unit produces moisture as it regulates the air temperature inside the house. The accumulated moisture drips into a drain pan and is released through a drain line placed outside of the house. This is why any signs of leaking around the unit is a sign of malfunction. It may be caused by dirty filters, clogged drain lines, low refrigerant levels, or a damaged drain pan.

  1. Making Loud Noises

Another sign that your HVAC system may need repair is if you’re hearing loud or unusual noises coming from the unit. Most of the time, it means that the components inside may be broken or malfunctioning. Other times, however, it’s possible that there is some debris stuck inside it which needs to be cleared immediately.

  1. Emitting Strange Odors

The air coming out of your AC unit should be fresh and free of contaminants. As such, if you notice a burning smell, it may be a sign of burned wire inside the system which needs to be fixed right away to prevent further damage.

On the other hand, a musty smell may indicate mold growth inside the appliance or its duct. Inhaling mold particles can be hazardous to health, and this is why the unit must get cleaned and repaired right away.

  1. Faulty Thermostat

The thermostat is the regulating device in the air conditioning unit which determines the difference between the desired temperature as compared to what’s being produced by the machine. Simply put, the thermostat determines the amount of cold air the AC must generate.

One of the signs of a faulty thermostat is if the AC won’t start, or if it only works for a short period before turning off on its own. This could mean that the thermostat isn’t able to identify if the AC system is working or not.

For faulty thermostats, you’ll need to hire a trained HVAC specialist to check the unit as it requires a certain skill set and expertise to fix it.


Having a functional AC unit is important to keep a household comfortable for its occupants. This is why homeowners need to be vigilant when there are signs that may cause concern. Apart from this, proper care and maintenance of the air conditioning unit may help prolong its lifespan and improve the energy efficiency in a home.

Altogether, this appliance is a valuable asset in your household and as such, it’s always worth the while to take care of the investment you made.

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