Fall temperatures are slowly creeping in and your air conditioner did its part to help you survive the heat of the summer and then Bam! It’s all frozen up and not working. Why is my air conditioner frozen?
The professionals at Carmine’s are here to help and to explain what happened to you’re A/C right here at the end of its season.
Poor Air Circulation
The first possible cause is poor air circulation around your unit. When there is restricted airflow around your A/C’s evaporator coil, this will cause the temperature in the system to drop below zero. If there is also moisture in the air you have a really good recipe for a frozen air conditioner.
Causes of restriction in airflow are:
- A dirty air filter
- Clogged Ducts
- Inefficient blower motors
- Debris build-up on the evaporator coil
Low levels of refrigerant or a refrigerant leak can also cause your unit to freeze up. A decrease in air pressure in the evaporator coil will cause the humidity in the air to freeze over the coil. The refrigerant line needs to be undisturbed so that the refrigerant can move smoothly through it. That way the moisture will not collect over one part of the line and freeze it.
Using the A/C Even When It’s Cool Outside
Quite a few of us, prefer to sleep in a nice cool room, but once night time temps drop to 60 degrees outside it is best not to have your unit running. When it is 60 degrees or below and your unit is running it may very likely freeze up.
What to do once it freezes:
- Immediately turn off the unit. It needs to start de-frosting.
- Check to see if anything is restricting airflow – if so, remove it.
- Change the Air Filter
- Open all the registers around your home and make sure that all vents are not blocked by household items such as furniture, drapes and other miscellaneous items.
- Call Carmines – 203-791-8089
Carmine’s is here for all of your heating, air and plumbing needs. Do not hesitate to call us at the first sign that something is not running properly.