Question 1

How often should I change my air filter?

Accepted Answer

Most 1-inch air filters should be changed every 1–3 months, depending on home conditions like pets or allergies. Higher-efficiency filters may last 3–6 months. Always check the manufacturer’s recommendation for your specific filter type.

Question 2

Why is my air conditioner blowing warm air?

Accepted Answer

Common causes include incorrect thermostat settings, clogged air filters, low refrigerant levels, dirty coils, or compressor issues. If basic checks don’t help, contact a qualified HVAC technician.

Question 3

What’s that weird noise my HVAC unit is making?

Accepted Answer

Unusual sounds like banging, clicking, hissing, or grinding can indicate problems such as loose parts, electrical issues, refrigerant leaks, or motor failure. Turn off the system and call a professional for diagnosis.

Question 4

How often do I need professional HVAC maintenance?

Accepted Answer

HVAC systems should be professionally maintained twice a year — once in the spring for cooling and once in the fall for heating. This helps extend system life, improve efficiency, and avoid breakdowns.

Question 5

My energy bills are high. Is my HVAC system to blame?

Accepted Answer

Yes, inefficient or poorly maintained HVAC systems can cause high energy bills. Dirty filters, worn parts, old units, or leaky ductwork are common culprits. A home energy audit may help identify specific issues.

Question 6

What is SEER, and why should I care?

Accepted Answer

SEER stands for Seasonal Energy Efficiency Ratio and measures air conditioner efficiency. A higher SEER means more cooling for less energy, which can reduce electricity bills and environmental impact.

Question 7

Should I repair my old HVAC unit or replace it?

Accepted Answer

Consider the unit's age, repair costs, and efficiency. If repair costs exceed $5,000 when multiplied by the system’s age, replacement is likely the better option. New systems are often more efficient and cost-effective long-term.

Question 8

Why is one room hotter or colder than the others?

Accepted Answer

Uneven temperatures can result from blocked vents, duct leaks, poor insulation, or system design flaws. Solutions include checking airflow, sealing ducts, or installing zoning systems or mini-splits.

Question 9

What size HVAC system does my home need?

Accepted Answer

Proper sizing is critical. Oversized units waste energy and undersized ones struggle to maintain comfort. A qualified HVAC contractor should perform a Manual J load calculation to determine the right size.

Question 10

Can I do HVAC maintenance myself?

Accepted Answer

Yes, you can do basic tasks like changing air filters and clearing debris around the outdoor unit. However, more complex maintenance, especially involving refrigerant or electrical components, should be left to professionals.