Summer in suburban Philadelphia brings not only fun in the sun but also potential challenges for your central air system. High temperatures and humidity can strain even the most robust systems. Here's a guide to identifying and handling common summer HVAC issues.

1. Reduced Airflow

Symptoms: The air coming from your vents isn't as strong as usual.

Possible Causes: This can be due to a dirty air filter, blocked ducts, or a failing fan motor.

DIY Solutions: Replace or clean the air filter if it's dirty. Ensure that all registers and vents are open and unblocked.

When to Call a Professional: If changing the filter and checking vents doesn't improve airflow, or if you suspect a fan issue, it’s time to call a technician.

2. Inconsistent Cooling

Symptoms: Some rooms are cooler than others, or the overall cooling is less effective.

Possible Causes: This could be due to low refrigerant levels, poor insulation, or leaky ductwork.

DIY Solutions: Check for any obvious leaks in visible ductwork and seal them with duct tape. Ensure windows and doors are properly sealed to keep cool air in.

When to Call a Professional: If problems persist after sealing leaks and checking insulation, the system may need a refrigerant recharge or professional duct sealing.

3. High Humidity Levels

Symptoms: The air in your home feels moist and clammy even when the AC is running.

Possible Causes: The system may be oversized, improperly calibrated, or experiencing issues with the evaporator coil.

DIY Solutions: Use a dehumidifier in conjunction with your AC to reduce moisture levels.

When to Call a Professional: Persistent humidity problems may require recalibration of your AC system or repairs to the evaporator coil.

4. Strange Noises

Symptoms: Rattling, buzzing, or whistling sounds from the AC unit.

Possible Causes: Loose parts, debris in the system, or ductwork issues.

DIY Solutions: Inspect the outdoor unit for debris like leaves or twigs. Secure any loose panels on the external unit.

When to Call a Professional: If cleaning the unit and tightening components doesn’t stop the noise, a professional can assess and fix internal mechanical issues.

5. The System Constantly Runs

Symptoms: The AC seems to run without cycling off, increasing energy bills.

Possible Causes: Thermostat problems, low refrigerant, or a failing compressor.

DIY Solutions: Check the thermostat settings and batteries. Clean the condenser unit outside if it’s dirty or obstructed.

When to Call a Professional: Issues like low refrigerant or a failing compressor are complex and require a professional’s touch.

Remember, while many issues can be initially handled through DIY efforts, the complexity of modern HVAC systems often necessitates professional advice and service. If you’re in need of professional HVAC service in the Philadelphia area, McCorry Comfort can help ensure your system runs smoothly throughout the harsh summer months.