Regular maintenance is crucial for any commercial HVAC system. When HVAC systems aren’t properly maintained, they become less efficient, break down more frequently, and cost more money in energy bills and repairs. Worst of all, lack of maintenance can lead to premature HVAC replacements.


Here are 8 signs that indicate your commercial HVAC system is due for maintenance. 

1. Increased Energy Bills

Increased energy bills are one of the most obvious signs of an HVAC system in need of maintenance. As components become dirty, worn out, or out of calibration, the system has to work harder to heat or cool your building. 


This increased effort translates into higher utility costs. If you notice your bottom line drying out because of an overworked AC unit, have a technician inspect your system for any maintenance needs.

2. Longer Run Times

HVAC systems are designed to run for certain periods of time in order to reach the desired temperature. If you notice your system running constantly or for longer periods than normal, it likely needs maintenance. 


Dirty components make the system work less efficiently, while problems like low refrigerant cause it to run longer in an attempt to reach the set temperature. 


The average AC should cool a location down within 15 to 20 minutes; anything longer than that signals the need for preventative HVAC maintenance before massive repairs are in order.

3. Uneven Temperatures

Hot or cold spots throughout your building can indicate issues with your HVAC system. If certain areas are noticeably warmer or cooler, your ductwork may need cleaning or repair. Unbalanced airflow due to dirty filters or fans can cause some rooms to receive more cooled or heated air.

4. Strange Noises

Banging, grinding, whistling – strange noises coming from your HVAC system are never a good sign. At best, they indicate a loose component; at worst, they can signal a costly issue like a failing fan motor, which starts with repair costs of around $450, depending on your unit type and size. 


Don’t ignore odd sounds from your HVAC system. Unusual noises should be checked by a technician right away.

5. Lack of Airflow

If you aren’t feeling much air coming out of the vents, it’s likely time for maintenance. However, before calling out a professional, remember, clogged air filters are one of the most common causes of reduced airflow. 


A buildup of dust, dirt and debris makes it harder for air to pass through. Replacing filters is an easy maintenance task that you should be performing every few months.

6. Thermostat Malfunctions 

If your programmable thermostat stops following its schedule or maintains the wrong temperature, it likely needs replacing. Old thermostats can become less accurate over time and could cause your AC to run at temperature levels that leave your business uncomfortable and bleeding money whenever the energy bill rolls around. 


Replacing a malfunctioning thermostat helps ensure your HVAC system runs as efficiently as possible. If you know it’s time to replace your thermostat, just reach out to an HVAC professional in Corsicana that can guide you in the right direction for an efficient replacement.

7. Frequent Repairs 

Having to repair your HVAC system constantly is a clear sign that regular maintenance is overdue. If the same components keep failing, it’s time to get proactive. Schedule maintenance checks before problems occur. Your technician can spot and replace worn parts before they lead to breakdowns. 


When we help you stay on top of maintenance, we help you minimize repairs.

8. Old Age

The average lifespan of commercial HVAC components is 10-15 years. Once your system reaches this age, the likelihood of problems rises dramatically. Schedule a full inspection of an older HVAC system. Outdated components and low refrigerant levels can cause inefficiency and failure. While repairs may fix some issues, full replacement is often needed after 10-15 years.

Don’t Wait Until It’s Too Late, Contact Area Wide Services Today!

Waiting until your HVAC system has serious problems before scheduling maintenance is just bad business. Minor issues become major when left unchecked. It’s clear to see the time and money saved by regular maintenance far outweigh the inconvenience of expensive repairs and replacements. 


If your business’s HVAC unit is experiencing any of the issues we’ve described above, it’s time to schedule maintenance with Area Wide Services. We are your Corsicana professionals that help with everything from minor issues to emergency repairs.


Contact us today!


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