Why does a coil freeze up

Now that you know how, what you have to do is figure out why your air conditioner is freezing up , and to . This makes the refrigerant lines, and then the coils , freeze over. Not only is leaking refrigerant bad for the environment, in some places it is illegal to leave them refrigerant lines leaking. When an air conditioner freezes up , a number of issues may be at fault.

The following situations can impede air flow to the evaporator coil in your AC system.

There are many reasons why your AC unit may be freezing up.

Air conditioners need proper airflow to keep the cold coil warm.

Warm air from the home is needed for the coil to stay cold and keep the temperature above freezing. Without it, coils freeze before the condensed water can be drained away from . If your air conditioner freezes up due to an air flow issue, first thing to do is switch it off to start the defrosting process. The evaporator coil is prone to freezing , primarily because it transfers heat, or evaporates it, from the indoor to the outdoor air. If the problem does not resolve itself, other factors to consider include: A wet filter . Nope – the air conditioning equipment may be frozen. Find out what the coil is, why it freezes up and what you can do to fix it.

This causes low flow within the unit, and although the unit does cool, it is not effective cooling. Freon level drops too low, there will be no cooling at all, even . Thanks for the question, Dorothy. Kung Fu Maintenance shows four most common causes of air coditioner freezing or icing up repair maintenance video. Get the new albulm Up Beat onhtt. As warm air passes over the coil , the special coolant liquid inside expands, causing it to evaporate.

The heat energy is thereby transferred . You guessed it: That means lower airflow over the evaporator coil , which can cause it to freeze up. Learn how to troubleshoot the problem. The problem grows quickly when . A sufficient flow of hot, humid air is an important aspect of preventing the coil from freezing. A technician can increase the fan speed and do away with what causes an air conditioner to freeze.

If something blocks the drain, the backed- up water freezes all the way back to the evaporator coil.