Furnace Evaporator Coil Frozen

This can be due to anything from closed off air registers to a malfunctioning air handler.

Furnace evaporator coil frozen.

When air isn t freely moving across the evaporator coil its temperature drops leading to a frozen ac coil. Air conditioners require correct refrigerant levels to operate. If your evaporator coil has frozen up the first thing you should do is turn off your unit. If you continue to run the unit while the coil is frozen it could cause extensive damage to the system.

A dirty air filter or restricted air movement in ducts could be preventing proper airflow. This will interfere with the creation of cool air for indoor comfort. If there isn t enough air blowing over your evaporator coil the coil won t have enough heat to absorb. One of the most common causes of a frozen evaporator coil is lack of system airflow.

This is especially true if the obstruction happens near the evaporator coil the coldest part of the ac. Fixing a frozen evaporator coil a coating of ice on the evaporator coils will prevent the coils from working properly. Replace your system s air filters regularly. Frozen ac coils are caused by blocked condensate lines.

While a frozen ac may be caused by malfunctions or damaged equipment proper maintenance can help avoid some issues. The first concept to understand while troubleshooting a frozen evaporator coil is that the coil is supposed to be cold but not freezing. This prevents it from getting the airflow it needs to properly move heat which means that the system could then freeze over. If the water is stuck in one place because of a clogged pipe it can freeze.

Evaporator coil cleaning is an essential part of our ac tune up service for this exact reason. In a properly functioning system the evaporator circulates refrigerant vapor at about 40 degrees the optimum temperature to extract heat from the airflow passing through the coil but never frigid enough to produce ice. Since they are no longer in contact with the surrounding air they will not be able to absorb that heat and air coming out of the supply vents will be warm. Over time your system s evaporator coil will become covered in dust dirt grime and more.

This will cause the condensation on the coil to freeze over. How do i know if my evaporator coil is bad near okc. Keep the evaporator coils clean as dirty coils can restrict air flow across them.