Look at these warning signals that HVAC system is about to fail

Look at these warning signals that HVAC system is about to fail

March 12, 2022 0 By admin

The HVAC system in a building is not only used to maintain a constant temperature and keep the tenants happy and comfortable. It also affects the level of productivity, security and energy consumption bills of the units. However, there is no denying that the maintained unit will sometimes also need to be repaired. You need to know that HVAC system problems can be anything from a bad smell from the air units, strange sounds, inconsistent airflow, or the expected increase in the cost of energy bills. If you notice these signs, it is recommended that you call a heating repair technician to have it checked out. 


In your air conditioning unit, a refrigerant is used to remove heat and moisture from the indoor air. If there is a leak in the refrigerant line, then there will not be enough to cool the air. In this case, it is not just about replacing the refrigerant, but you also need to find a technician who can help you find the leak. This leak needs to be fixed.

Evaporator coils

These coils are filled with refrigerants. They are responsible for properly absorbing heat from the air. They act like sponges. These coils require hot air to circulate through them in order to function properly. If the evaporator air gets too cold, you know something is wrong with the airflow. A common way to see this is when you see a thin layer of ice formed on the outside of the system. 

Condenser coils

Condenser coils are part of the outdoor unit of your HVAC. They are responsible for removing heat from the air by expelling it outside the building. Proper care during installation on the outdoor unit ensures that this part does not become damaged due to wear or accumulation of dirt over time. If this happens then the condenser will not be able to work well as it will become clogged with dirt. In places where there is a lot of pollution and soot, this is a common problem. This overloads parts of the HVAC unit.

Fan noise

If you look at the system properly, you will notice one fan blowing indoor air over the evaporator coil to cool the air and another fan blowing over the outdoor unit to exhaust absorbed heat out of the property. When any of these fans malfunctions, you will end up with low airflow.

Debris accumulation

Many parts of the unit can be affected by debris build-up, in addition to factors such as faulty motors, lack of lubricants, etc. It may also experience regular and expected wear and tear with constant use. Regular cleaning and checking of this part can prevent major problems in the future, which can only be fixed by replacing the entire system.


Your air conditioner needs to receive the correct instructions from the control panel, which is the thermostat. If you are using the old dial thermostat, you can easily replace it with a newer, more technologically advanced one. Once you have the right knowledge, you can ensure that your system works efficiently for a long time.