6 Common HVAC Problems to Repair

Building and sky

A properly-working heating and cooling system is something that you don’t notice until it’s gone. Failed commercial HVAC systems can result in environments that are not only too hot or cold for your employees and customers, but for any of your products and other equipment, as well.

There are a number of ways that an HVAC system can fail. Here are six issues we’ve run into that go beyond checking the thermostats, gas lines, filters, and fuse boxes.

Clogged drain lines

Like air filters, the drain lines that funnel excess water away from your HVAC unit can get clogged with organic materials like dirt or algae. If the lines get clogged, the unit’s drain pan will fill up and potentially leak, which could lead to water damage in your system’s components.

Low refrigerant

Also known as Freon, refrigerant is a fluid that keeps your HVAC system cool. If the refrigerant level gets low enough to require recharging, you probably have a leak that requires repair. Leaks can happen as a result of the unit vibrating during operation and, depending on where the refrigerant leaks, a number of related problems can arise. Low refrigerant causes evaporator coils to freeze, compressors to run hot and seize, and potential damage to other parts of your HVAC system beyond repair.

Worn contactors

Three contactors in the compressor, condenser motor fan, and blower motor form electrical connections whenever a unit needs to heat or cool a building, and they’re responsible for starting the compressor and motors. If the contactors get damaged, it can be hard for electrical currents to pass through and motors to start working.

Dirty condenser coils

Condenser coils are located outside of the compressor and therefore exposed to outdoor elements. Usually the dirt that naturally comes about from being outdoors can get hosed off when the unit isn’t operating, but more serious cases of dirt and grime will require an HVAC technician to use a chemical cleaner.

Burnt-out capacitors

Capacitors help an HVAC unit’s motors run. Start capacitors give the compressor the push that it needs to get started, and run capacitors help the motors run at a consistent speed once they’ve started going. If either burns out, they need to be replaced for the unit to function properly.

An improper maintenance schedule

Like any machine, an HVAC system needs to be properly maintained. This is not only necessary for your comfort and even safety, but properly maintaining your system will also save you money in the long run. Any problems in HVAC systems generally start out as very simple things that can be caught and addressed early. If you keep a small problem from getting bigger, you will ultimately spend less money on repairing or even replacing your unit.

Whether you need some repairs or to work out a maintenance schedule for your commercial HVAC system, we can help. Contact us online or give us a call at 855-214-2168 for your heating and cooling needs.

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