Denver HVAC Repair

The myth that most people believe is that if you add more refrigerant to the unit it will cool better. This is only true if the evaporator coil is operating below freezing. The unit must have a balanced charge at the correct refrigerant pressure for the temperature and usually, only an HVAC professional can charge your unit properly. Another misconception about refrigerant is that the unit burns it up and it must be replaced from time to time. This is not true. Furthermore, the refrigerant loop is a closed system and barring any leaks the air conditioning system should never need any refrigerant.
The Environmental Protection Agency (EPA) requires that all technicians who open a system containing a controlled refrigerant be certified to do so. There are four levels of certification, one of which is a “universal” certification to allow the HVAC technician to work on any type of equipment containing refrigerant. Your HVAC technician should be certified as “Level II Certified” at a minimum or, preferably, “Universal Certification” to work on your central air conditioner. Obtaining this certification information from your professional HVAC technician may be required in the event you are working with a realtor to sell your home. Costs for certification average $40-$240.
The myth that most people believe is that if you add more refrigerant to the unit it will cool better. This is only true if the evaporator coil is operating below freezing. The unit must have a balanced charge at the correct refrigerant pressure for the temperature and usually, only an HVAC professional can charge your unit properly. Another misconception about refrigerant is that the unit burns it up and it must be replaced from time to time. This is not true. Furthermore, the refrigerant loop is a closed system and barring any leaks the air conditioning system should never need any refrigerant.

Rapid Repair Experts proudly provide plumbing, electrical & HVAC services to Raleigh, Angier, Apex, Benson, Carrboro, Cary, Chapel Hill, Clayton, Dunn, Durham, Fuquay-Varina, Garner, Holly Springs, Knightdale, Morrisville, New Hill, Pittsboro, Rolesville, Sanford, Smithfield, Wake Forest, Wendell, Youngsville, Zebulon. If you don’t see your area, please contact us to see if we can visit you!


Beyond changing the air filter on a regular basis, one of the best ways to ensure your home's HVAC system is operating at peak efficiency is to have a qualified professional HVAC contractor tune up the system on a biannual basis. Energy Star recommends scheduling your system tune-up around the beginning of daylight savings time in the fall and its end in the spring. It's an easy way to remember to have your system serviced before the peak heating and cooling seasons. A standard tune-up is likely to cost you between $70 and $100, but it's money well spent. 

At James Heating & A/C, Inc, heating and cooling isn’t just our job, it’s our passion. We strive to provide you with high quality HVAC service in Lexington. No matter the size of the problem or time of day, you can count on us to get the job done properly. After all, James Heating & A/C, Inc has been working in the community since 1967, bringing comfort to our customers right when they need it.


You should also have air ducts cleaned after recent water contamination or water damage to prevent mold; after renovations or remodeling to ensure debris and dust didn’t settle in the vents and ducts; if you are having problems with allergies or asthma; or when you are moving into a newly purchased home, especially if the previous owners smoked or had pets. The National Air Duct Cleaners Association (NADCA) recommends getting your air ducts cleaned every three to five years, or every two to three years in regions where homeowners use their air conditioning and heater for many months of the year, while the EPA suggests homeowners have duct cleaning done as needed.
The contactor (relay) and start/run capacitor(s) (see illustration below) fail most often and are inexpensive. So it’s a safe bet to buy and install those parts right away, especially if your air conditioning service unit is older than five years. The condenser fan motor can also fail, but it runs about $150 — hold off buying that unless you’re sure that’s the culprit.
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