If you turn on the air conditioning, the system should immediately begin circulating cool air throughout the building. However, if the system needs attention, you may feel warm air or nothing at all. Here are four potential causes of AC malfunctions.

AC Systems May Not Work for These 4 Reasons

1. Clogged Filters and Ducts

HVAC contractors and manufacturers recommend changing AC air filters every three or so months to decrease the likelihood of clogged ducts, which prevent the system from expelling cold air. Households with pets may need to perform this task more frequently to mitigate the risk of clogs related to fur and dander. Additionally, households with residents who have respiratory issues like asthma or allergies should change the filters monthly to improve air quality.

2. A Broken Thermostat

Occasionally, thermostats run out of battery power and can no longer control the air conditioning system. This device may also require calibration to make sure the settings align with the air temperature. Have an HVAC specialist calibrate the system every few years, so you know the system will reach the temperature you choose.

3. Limited Refrigerant

Recent air conditioning systems use refrigerant R410A to absorb heat. This material starts as a gas and then transforms to a high-pressure liquid inside copper coils before returning to a low-pressure gas as it cools. Without enough refrigerant, the AC system can’t decrease the air temperature and will circulate warm air in the home until you introduce more refrigerant. Most ACs will not run out of this substance, so there’s likely a leak if this is the issue. 

4. Circuit Breaker Issues

Your house must have a designated circuit to power the air conditioner. This design will prevent the circuit from tripping if you try to use multiple appliances at once. Always inspect the circuit if the AC isn’t working as the unit itself may not be the culprit.

Home- and business-owners experiencing these four issues should contact the professional technicians at Colburns Heating & Air Conditioning in Southwestern NY and Northwestern PA to set up an appointment for air conditioning repairs. The specialists have over 44 years of experience designing, installing, and maintaining furnaces, boilers, water heaters, ductwork, and other HVAC features. Call them at (716) 569-3695 or visit the website for more information.