Sometimes it seems as though you have mischievous gremlins inside your air conditioner and you ask, “Why is my air conditioning system frozen?” Odd things appear to make it malfunction. Many things could go wrong with an air conditioner. It helps to have some knowledge of what to expect, or what to look out for if you own one in your home or business. Of the many issues they may have in their lifetime, one of them is over-freezing or ice accumulation on one of the units or their parts. We will start by discussing the symptoms and what to keep an eye out for, as well as what could be causing the problem.
Taking a closer look
Keep a close watch on your A/C units especially if you ever notice ice buildup or freezing on it. Air conditioners aren’t industrial coolers, so there should be no ice residue on any part of the system whatsoever. Common places to check include the compressor itself, any pipes coming out of the air conditioning units, or frozen coils. Even water leakage could be a sign that there is ice inside which is melting. In fact, if the ice gets thick enough it will actually restrict the airflow from passing through the evaporator coil in the air handling unit. This can result in little to no or sometimes even hot air coming from the air vents.
Understanding the causes
The main cause of ice buildup on an A/C unit can generally be attributed to the refrigerant gas levels in the system being too low. But other explanations could be an extremely dirty air filter or possibly a blockage of some kind somewhere within the ductwork. Another reason might even be a bad thermal expansion valve or reversing valve inside the system’s piping. Sometimes the cause could also be a stuck or bad contactor switch, keeping the system running constantly and freezing it up.
At Wade Heating & Air Conditioning, we provide dependable service in the West Metro Atlanta area. Our trade-certified technicians service and repair all air-conditioning and heating systems including Rheem and others. For more information about why your air conditioning system is frozen and emergency repairs, please contact us.