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With the improvement in technology, a lot has been changed in air conditioning systems such as enhanced features, changes in government regulation, etc. So, whenever an individual faces some issue in the AC system, it gives rise to confusion between repair and replacement. Well, it needs you to consider some factors and evaluate them to make the decision. An old or damaged HVAC system can result in numerous issues but at the same time, it would not be easy to invest in a new one.

To get rid of this tricky problem, let’s check out some signs that will help you to make the right decision:

The lifespan of the AC system

One of the most significant factors to decide the replacement of the AC system is the lifespan of the unit. According to the department of energy, an AC must be replaced after 15 to 20 years. Though modern AC systems are durable, yet their components also start deteriorating after approximately 10 years. Thus, you are suggested to calculate the lifespan of your HVAC system and make the right decision accordingly.

Repair cost

If your AC is not working efficiently, and you are looking for its repair, make sure to check its repair cost. It would be the worst idea to repair your decade-old AC system if it will cost more than half of the cost of a new AC.

Unusual smell and odd sounds

An unusual smell or odd sound coming out of the AC indicates you to turn off your AC system immediately. The smell is nothing but only the dust burning off. It can also be due to wiring melting away, while the sounds like grinding and squealing can be due to its components getting older day by day. If you experience any or both things, you need to inspect your system immediately.

Poor air quality

If you are unable to maintain indoor air quality during summers, it can be due to two factors. Firstly, your HVAC system is not working properly, and secondly, it can be due to the aging of your HVAC system. If it is not cooling the environment, and you are feeling uncomfortable at home, you can consider its replacement. It is because as the HVAC system age, they naturally begin to struggle with cooling the temperature of the room.


Though it is not easy to replace your old HVAC system, yet it is better than paying more than half the amount of new AC on the repair of old ones. Before investing in the new HVAC system, make sure to check out the consumption of energy bills, dust accumulating in your home, air quality, etc. It is because these factors will help you to make the perfect decision without any confusion.

Also Read:

Steps to Improve Energy Efficiency of Heating Systems

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