AC Not Working? Here are some Common AC Problems in Knoxville

January 30, 2015

Although there may be hundreds of factors why your Knoxville home’s central air conditioner may need to be repaired, there are a few reasons that are most common. Knowing what they are may help you to understand what a technician is saying when they address the options for resolving the problem. Here are the top five problems that may result in a system’s failure. Review the Top 5 list below and if any of these scenarios exist in your home, please schedule an HVAC inspection.

  1. Bad wiring

    Shotty, haphazard or uncertified A/C wiring is risky and a probable fire hazard. Bad wiring can prevent the system from getting power or can pop the circuit breaker.

  2. Low refrigerant

    Refrigerant (typically referred to as Freon) is the chemical that cools the air inside your air conditioning system. Low refrigerant could imply a leak or problem with the refrigerant system. If your air conditioning system needs to be recharged with refrigerant, usually that suggests there is a leak. All refrigerant leaks should be found and repaired. To learn about the phase out of R-22 refrigerant in the United States, we encourage you to visit the U.S. EPA website.

  3. Outside fan is not turning

    The outside fan is responsible for moving the heat from your Knoxville home to the outside air. If the fan on the outside unit doesn’t operate properly, proper heat transfer cannot take place and the air conditioning compressor may overheat and trip the safety overload. This action can lead to internal damage to the compressor.

  4. Outside unit not functional

    This usually indicates a loss of power, contactor problems or even a broken thermostat.

  5. Frozen inside coil

    A frozen coil mainly indicates a problem with the airflow, such as restrictions caused by old air filters or blocked return air ductwork. Frozen indoor coils could also be derived from low refrigerant.

Best practices suggest that the most effective way for a Knoxville area homeowner to prevent these simple problems is by participating in a preventive maintenance program. Bad wiring, low refrigerant and airflow problems can be detected during routine maintenance tune-ups. For all these common issues, a professionally qualified, NATE-certified technician can promptly diagnose the problem area and implement the necessary repairs. Call or contact us today for an evaluation!