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Here’s how AC professionals will clean your AC coils:

1. Unplug the AC unit or turn off the breaker to the unit in your circuit breaker box.

2. Remove the faceplate.

3. Spray a vacuum hose attachment or compressed air can to remove debris, dust, dirt, and grime.

4. Use a soft-bristled fin comb to remove stubborn caked-on debris.

5. Use the vacuum hose to suck up any extra debris.

6. Take a coil-safe cleaning solution and spray it onto the coils. Try to choose a no-rinse solution.

7. Let the solution sit for at least 15 minutes.

8. Gently wipe away loosened grime and debris with a microfiber cloth.

9. Reattach the faceplate, plug in your AC system, or turn the breaker back on.

Yes, mini-split or ductless AC systems add value to a home and do not devalue it. They are an attractive feature for potential buyers, especially in older homes without existing ductwork, as they provide a practical air conditioning solution without the significant expense and hassle of installing traditional ducts. Ductless systems also eliminate issues associated with conventional ductwork, such as noise and the potential for pests. Furthermore, homeowners value energy-efficient solutions, and mini-splits offer high efficiency for both heating and cooling, plus zoned temperature control. This leads to lower energy consumption and reduced electric bills, which is a major selling point.

Swamp coolers cost approximately 50 percent less to install than central air conditioners and cost less to run. Operation costs depend on the size of the unit and home, your climate, utility rates in your area, and the system’s efficiency. Swamp coolers use 15 to 35 percent less power than air conditioners.

Ideally, an AC system should never need more Freon (a popular refrigerant) because it circulates in a closed loop. However, refrigerant leaks are not uncommon and may occur gradually over 5 to 15 years. If your system has a leak, it will need to be topped up in a process known as an AC recharge. Signs of a refrigerant leak include weakened AC performance, increased humidity in your home, higher utility bills, and a hissing sound from the unit. The cost of an AC recharge will depend on the size and type of your AC unit, as well as the type of refrigerant it uses.