Q
How often should I recharge my air conditioner with new refrigerant?
A
 Contrary to popular belief, air conditioners do not consume refrigerant or Freon.

(Freon is a brand name name often used to describe any refrigerant.

Therefore, a low refrigerant level indicates a leak which should be repaired before adding more.  While most new system connections are welded to minimize leaks, many older units (8+ years) were connected with mechanical flared fittings which can vibrate loose over the years, causing leaks.

Problems with freon leaks:

  • Low refrigerant levels reduce efficiency of the air conditioner.
  • Refrigerant leaks can freeze the evaporator coil, causing it to literally ice up.
  • Refrigerant is an Environmental Protection Agency (EPA) controlled substance, deemed hazardous if released into the environment.
  • The heart of the unit is the compressor, which is cooled by the refrigerant.  Over time, low refrigerant levels can cause overheating and premature failure of the compressor, often requiring complete replacement of the compressor or the entire condensing unit. And, with the new minimum efficiency standards (13SEER) the evaporator (indoor) coil often needs to be larger – so the entire cooling system must be replaced.
Q
Are regular check-ups worthwhile?
A
We do recommend annual air conditioning check-ups in the spring, and furnace check-ups every fall. Although regular check-ups will not absolutely guarantee that a unit will continue to work perfectly throughout the season, they will reveal most small problems that can lead to major, far more expensive problems if left unattended.
Q
What is an air conditioning check-up?
A
It consists of the following steps:
  • Check for proper refrigerant (freon) levels. A low level indicates a leak that needs to be found and repaired before adding more refrigerant.
  • Check all electrical components and controls.
  • Clean evaporator and condenser coils as needed.
  • Oil motors as needed.
  • Calibrate thermostat.
  • Check condenser.
  • Check filters.

A thoroughly cleaned air conditioning unit will operate at top efficiency.  However, home owners are strongly discouraged from cleaning it themselves by using a hose and water because of the serious risk of electrical shock and possible shorting of electrical components.


Q
What are principal indoor air quality concerns?
A
Air pollutants have always been present in the indoor-environment.  Serious short-term health effects have been alleged and headaches, dizziness and other symptoms have been attributed to high concentrations of indoor air contaminants, while the consequences of long-term exposure to low levels of indoor pollutants is not known.  The levels reached indoors are a function of the presence of pollutant sources, the strength of such sources, the volume and mixing rate of the enclosed space

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Custom Air • 935 Claycraft Road • Gahanna, OH 43230 • 614-552-4822