5 Common HVAC Problems You Should Know About

The heating and cooling system is crucial to your comfort inside the house. However, any issues with the HVAC can be overwhelming and potentially costly. Some problems can also be detrimental to your health and time-consuming to repair. The best way to keep your HVAC system in excellent condition is to identify issues with the unit on time and fix them. Read on for five common HVAC problems, their causes, and how to rectify them.

1. Lack of regular maintenance

You may opt to reduce your monthly bills by foregoing regular maintenance by a professional contractor. However, this may result in poor system performance, increased energy bills, unanticipated expensive breakdowns, and frustrations. You should schedule regular maintenance with reputable heating and cooling companies to improve the efficiency and lifespan of your unit. A contractor can identify issues with the HVAC system and rectify them before they escalate into severe problems. Purchasing an HVAC system is already expensive, so you should protect your investment by booking annual inspections and maintenance.

2. Filthy filters

The air conditioner is fitted with air filters that prevent pet dander, dust, dirt, bacteria, and debris from getting into the system. Over time, these filters become clogged as dirt particles accumulate in the units. This blocks airflow in the HVAC system, making it work twice as hard to maintain optimal home temperatures, which leads to more energy consumption. A dirty filter could also cause the heating and cooling system to overheat and shut down. Be sure to clean or replace the air filters every three months
to improve the efficiency and extend the life of your HVAC unit.

3. Uneven room temperatures

Factors such as the external temperatures, room size, windows, and air vents can determine which parts of the home receive priority from the heating and cooling system. However, if you notice certain rooms are far colder than others, it could signal a severe problem with your HVAC unit, so you should hire a contractor to diagnose and fix the issue. In the meantime, add dampers, close doors, and windows when the HVAC system is running, and cover windows with sun-blocking drapes or blinds to ensure even distribution of heat.

4. Clogged drain line

The drain line ensures proper condensation water drainage during the air conditioning process. However, dust particles, dirt, and debris build up in the unit, clogging it. This prevents the condensation water from flowing along the drain line, and you may notice water leaks, an awful smell from the AC drain line, and loss of cooling. Be sure to pour white vinegar down the drain line to unclog it. Alternatively, hire a professional to clean the unit and identify other issues such as cracks on the pipes that could compromise the efficiency of your HVAC unit.

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5. Problems with the thermostat

The thermostat controls the HVAC system. It communicates how warm or cool the home should be. If you notice that the heating and cooling system is not working correctly, it could indicate a faulty or broken thermostat. It could also mean that the batteries need replacement. Contact a contractor for proper diagnosis and repairs if you ascertain that the batteries are not the issue.


The HVAC system helps you maintain optimum home temperatures and plays a crucial role in improving indoor air quality. Seek heating and cooling Indianapolis maintenance services to stay ahead of the above problems and ensure your unit’s efficiency.

- by Matt Watts