Question 1

Should I repair or replace my unit?

Accepted Answer

If the unit is over 10–12 years old, requires frequent repairs, or has rising energy bills,
replacement is often more cost-effective.

Question 2

What is a good SEER rating?

Accepted Answer

Seasonal Energy Efficiency Ratio (SEER) measures efficiency; higher is better. ENERGY STAR
qualified air conditioners have a SEER of at least 14.5.

Question 3

How often should I change my filter?

Accepted Answer

Check filters monthly. Generally, replace fiberglass filters every 30 days and pleated filters every
90 days.

Question 4

Why is my AC not cooling properly?

Accepted Answer

Common causes include a dirty, clogged air filter, low refrigerant levels, or dirty evaporator coils.

Question 5

Why is my AC freezing up?

Accepted Answer

Frozen coils are usually caused by restricted airflow (dirty filter) or low refrigerant, causing the
coils to get too cold.

Question 6

What is the best temperature setting?

Accepted Answer

For energy savings, set your thermostat to 78F / 26C when you are home, and higher when away.

Question 7

Do I need to cover my AC in winter?

Accepted Answer

Covering is not required as units are built for weather, but a cover can protect against falling
debris, provided it is removed before operation.

Question 8

Why is my energy bill rising?

Accepted Answer

A dirty filter, inefficient, old unit, or leaky ductwork can cause the system to run constantly,
increasing costs.

Question 9

What does "split system" mean?

Accepted Answer

A split system divides components into an indoor unit (evaporator coil/air handler) and an
outdoor unit (condenser/compressor).

Question 10

Why does my breaker trip?

Accepted Answer

A tripped breaker often signals an overworked unit, a short circuit, or a failing motor/compressor.

Question 11

When should I replace my furnace?

Accepted Answer

If it is 10–15+ years old and needs major, costly repairs,
replacement is likely more cost-effective.

Question 12

What is a good AFUE rating?

Accepted Answer

High-efficiency furnaces typically have an AFUE of 95% or higher,
saving significantly on energy bills.

Question 13

Why is my furnace blowing cold air?

Accepted Answer

This can be caused by a faulty thermostat, dirty filter, or a
malfunctioning pilot light/flame sensor.

Question 14

When is the best time to buy a new furnace?

Accepted Answer

Late spring or early fall is ideal for better pricing,
service availability, and potential rebates.

Question 15

Do I need an annual inspection?

Accepted Answer

Yes, an annual professional tune-up in the fall is recommended
to ensure safety, efficiency, and to check for carbon monoxide leaks.

Question 16

How do I choose the right size?

Accepted Answer

A professional heat-load calculation, which considers home size,
insulation, and windows, is necessary to prevent improper heating and premature failure

Frequently asked questions