Question 1

Can I clean my own AC coils?

Accepted Answer

While you can clear debris from around the outdoor unit, deep cleaning the evaporator and condenser coils requires specialized chemicals and tools. Improper cleaning often damages delicate coil fins, leading to reduced efficiency and costly repairs.

Question 2

How often should I have professional maintenance?

Accepted Answer

For Raleigh homeowners, we recommend two annual maintenance visits to combat our region’s dramatic temperature swings.

Question 3

Does DIY maintenance affect my warranty?

Accepted Answer

Yes. Most HVAC manufacturers require proof of annual professional maintenance to honor warranties. DIY work often voids this coverage, leaving you responsible for major component costs.

Question 4

What is the typical investment range for a new HVAC system?

Accepted Answer

For a central air conditioning or heat pump installation in the Triangle area, you can generally expect a range of $8,500 – $27,000, depending on the specific equipment, scope of work, your home’s unique requirements and your family’s wants and needs.

Question 5

What is included in a Dawson’s installation?

Accepted Answer

Our quotes are "all-in." This includes: the new equipment, permit fee, refrigerant, updated line sets, necessary electrical connections (disconnect box and wiring), system startup testing, and the removal and disposal of your old equipment.

Question 6

How do I avoid expensive breakdowns?

Accepted Answer

The best way to protect your investment is regular maintenance. Our Peace of Mind Club covers automatic scheduling, priority service, and biannual maintenance visits for both your HVAC system and an annual electrical safety inspection to keep everything running efficiently.

Question 7

Can I keep running my AC while it's frozen?

Accepted Answer

No, running a frozen system can put extra strain on the compressor, which is one of the most expensive parts to replace. Turn it off and let it thaw first.

Question 8

How long does it take a frozen AC unit to thaw?

Accepted Answer

Usually a few hours, depending on how much ice has built up. Avoid the temptation to speed it up by chipping at the ice.

Question 9

Will a frozen coil damage my compressor?

Accepted Answer

It can, if the system keeps running while frozen or if it happens repeatedly without the underlying cause being fixed. That's the main reason we recommend having it looked at even after it thaws on its own.

Question 10

How long will my AC unit last?

Accepted Answer

On average, a well-maintained AC system lasts 10–15 years. Regular maintenance like tune-ups and filter changes helps extend its lifespan.

Question 11

How often should I have my AC unit maintained?

Accepted Answer

Most manufacturers recommend servicing your system 1–2 times per year to keep it efficient and prevent breakdowns.

Question 12

What is the benefit of an AC tune-up?

Accepted Answer

Tune-ups improve efficiency, prevent unexpected repairs, and extend the life of your equipment. We inspect components, clean coils, and test safety features.

Question 13

Why is my AC unit or coils freezing?

Accepted Answer

Freezing is often caused by restricted airflow, such as a clogged filter, or low refrigerant levels. If you see ice, it’s best to call a professional for a diagnostic check.

Question 14

How should I choose an HVAC company?

Accepted Answer

Look for a company that is fully insured, locally owned, and has transparent pricing with background-checked technicians. Dawson’s Electric & Air has been proudly serving the Triangle for over 20 years.

Category: AC Education Cooling Insights