Air conditioning systems are essential during a North Carolina summer, as they supply cool air to keep every room in the home comfortable. Knowing how to tell when you need AC repairs can prevent inconvenient breakdowns and ensure indoor air remains temperate. Here are some signs of problems and what an HVAC contractor can do to fix them.

How to Tell Your AC Needs Repair Work

1. Warm Airflow

If your HVAC system blows warm air while on cooling mode, a frozen evaporator coil might be the culprit. The coil contains refrigerant, which is a liquid that absorbs heat from your home's indoor air. 

If this component becomes saturated with dust and grime, it might not absorb enough warmth, causing its internal temperature to drop below 32 degrees. When this happens, the coil may freeze and stop absorbing heat, leading to lukewarm airflow. An HVAC technician can thaw the coil and clean it to restore cool air. 

2. Leaks 

Refrigerants can also leak. Any cracks or holes in the lines that transport this liquid through the system may cause it to seep out. An AC technician will find the source of the leak and replace the tubing if necessary.

Alternatively, you might notice puddles inside due to a condensate drain line issue. The drain pan catches the condensation that's removed from the air for humidity control, and this moisture exits the pan through the drain line. However, mildew or debris blockages might prevent this moisture from leaving, causing the pan to overflow onto the floor. Fortunately, the drain line can usually be cleaned out with ease by a professional.

3. Short Cycling 

When an air conditioner short cycles, it runs for a short period before shutting off and running again not long afterward. This often occurs when the thermostat falls out of calibration, causing its sensors to detect erroneously high indoor temperatures that prompt your AC to run and cool down your home. 

Short cycling may also occur if the air filter becomes clogged. This can increase the pressure inside your AC, causing it to prematurely stop running. An HVAC contractor may recalibrate or replace the thermostat to promote proper temperature detection and cycling. Replacing the filter once a month can also prevent short cycles. 

4. Unusual Noises 

Generally, you shouldn't hear more than a dull hum while your AC operates. However, clanging or banging sounds may indicate that a fan has become dislodged, causing it to hit internal components as it spins. 

High-pitched squealing is often a sign that the belt, which powers the blower motor, has become worn or damaged. An AC repair team may reposition and secure the fan, or they can replace the belt to restore quiet operation. 

If you notice any of these symptoms, contact Superior Residential Services. They provide AC repairs, new installations, and 24/7 emergency services for customers throughout Archdale, NC. Call (336) 861-5911 to book an appointment for air conditioning services and request a free estimate. Visit the website to learn more about how they'll keep your home comfortable all year long.