7 tips for HVAC system troubleshooting

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Your commercial HVAC system will not endure forever. Sooner or later, the summer will arrive. These are the most inconvenient months to be without quality air. Therefore, it is critical to have your HVAC system professionally maintained regularly, but even the best-kept system might fail at the worst possible time.

Tips for Troubleshooting HVAC System

While regular maintenance and any necessary repairs are left to the professionals, you can do a few things to assist your HVAC system is functioning smoothly and prevent future recurrence.

Reset your air conditioning system.

HVAC system with high performanceOne of the first things to do if something isn’t working is to reset the system. A reset technique varies per furnace, air conditioner, or heat pump.

To discover how to reset the system, consult your owner’s handbook. If you don’t have the manual, look up the system’s model number on the internet.

Replace Your Industrial HVAC Filter 

If your HVAC system isn’t operating as well as it used to, the air coming out of the vents is dusty or damp, or your system hasn’t been serviced in a long time, it’s time for a new filter. Filters that are dirty or old can limit air quality and airflow from your vents.

While you may replace air filters yourself, professional maintenance is recommended. An HVAC service professional will correctly maintain your system and notice any potential problems when changing the filter.

Turn off the air conditioner.

Components can freeze if your air conditioner is turned on for a lengthy period during the warm months, preventing them from chilling properly.

If the air conditioner appears to be cooling, switch it off and turn on the fan for a few minutes before using it again. If this doesn’t work or the problem recurs, it’s time to seek professional help.

Make Sure Your Commercial HVAC system has enough power.

HVAC system with expertAlthough it may seem impossible, a surprising percentage of HVAC issues have easy answers. If your machine won’t turn on, start by ruling out fundamental problems like a power outage.

Check your breaker to see if it has flipped or if a fuse has blown. Try turning off the breaker and then on again after a few seconds.

Ensure your furnace door is shut.

When the service door is open, many furnaces have a switch that prevents them from operating. If the furnace isn’t producing any heat, open and close the service door. Check that everything is securely closed before turning the heater back on.

Double Check Your Furnace and Air Conditioning Wires

Wires can get disconnected or damaged. Outside air conditioners are more susceptible to harm by landscaping equipment, which can damage exposed wiring. It can’t hurt to check if your system won’t start. Be cautious while handling any possibly damaged or exposed wires, as they may cause shock.

HVAC system by professional teamCheck for obstructions in all vents.

It’s critical to inspect your vents if specific home areas aren’t getting enough heat or cooling. A duct might close or be covered without your knowledge. Ensure no dirt, dust, or foreign objects in the vents that could block airflow.

When Should You Hire HVAC Professionals?

While diagnosing problems with your HVAC system can be simple in some cases, it is frequently best to leave it to the pros. It’s time to call in the specialists if the cause of an issue is unknown or the solution is complex.

Many issues with furnaces, air conditioners, and heat pumps take substantial skill to resolve, and attempting to do it yourself may result in damage and potentially void warranties. Our experts are trained and certified, with a lot of experience. Contact us right now!


7200 Distribution Dr, Louisville, KY 40258
Phone: (502) 384-8500 Email: [email protected]


Deanna RobinsonDeanna Robinson
11:42 11 Jul 23
Fantastic service! When I called Alliance and explained that my AC wasn't working and I needed it urgently because I take care of my 80-year-old mother, they immediately send their technician to help. The other hvac company in Louisville said it would take at least three days to fix the issue in this triple-digit heat, but Alliance fixed my problem in same day, and now we have cool air again! They are truly a blessing. From now on, whenever I have air conditing issues, I know exactly who to call—Alliance Comfort Systems!
Elizabeth LopezElizabeth Lopez
10:33 10 Jul 23
Great company for all your air conditioning needs. They have knowledgeable and very friendly technicians who can fix your AC before an estimated time. I will highly recommend Alliance company.
Tonia PriceTonia Price
05:02 08 Jul 23
The Alliance comfort systems team was really nice and helpful. They fixed my AC quickly and didn't make a mess. I would definitely recommend them to anyone in the Louisville area.
Sarah AlexanderSarah Alexander
11:45 07 Jul 23
I recently had the pleasure of working with Alliance Comfort System to repair my HVAC unit. I was very impressed with the professionalism, knowledge, and honesty of the team. They were able to diagnose the problem quickly and efficiently, and they explained the repair process in a way that I could understand. I also appreciated that they were upfront about the cost of the repair and didn't try to upsell me on anything I didn't need. Highly recommend HVAC contractor to everyone.
Joe YoungJoe Young
11:37 20 Mar 23
I recently rented heating and cooling equipment from Alliance Comfort Systems Inc for a temporary facility, and I was impressed with their flexibility and responsiveness. They worked with me to create a customized rental plan that fit my specific needs and budget. Their equipment was reliable and efficient, and their team was friendly and professional. Overall, a great rental experience. Highly recommended!


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