Lack of proper airflow to keep the air conditioning coil warm can lead to ac frozen.
Furnace evaporator coil frozen.
Sometimes though dirt picked up along the way can form a clog in that drain line and cause water to backup and overflow.
As the ice on your evaporator coil thaws the water will drip into a condensate drain pan and then flow outside via a condensate drain line a white pvc pipe.
More likely it will help you take immediate steps necessary to prevent more damage while you arrange for professional hvac service to repair the problem.
The ice buildup always starts in the evaporator and works it s way outside.
A frozen evaporator coil is one of the most common issues for air conditioners and heat pumps during the cooling season.
Top causes of frozen evaporator coils where is my evaporator coil located.
The following is a brief explanation of the evaporator coil s function the reasons evaporator coils freeze and what to do to get your cooling system working again.
One of the most common hvac issues is a frozen ac evaporator coil which will affect your ac s ability to function properly fortunately however it is a relatively easy fix.
Air registers can get clogged or blocked leading to insufficient airflow over the ac s evaporator coil.
If you have a frozen evaporator coil shut off your system immediately as prolonged operation can and will damage the compressor.
What s definitely not recommended is continuing to operate the system and hoping the malfunction will.
When you find a frozen system take your time and get it fully defrosted.
Refrigerant is the chemical that runs through your ac coil changing pressure and temperature in order to absorb heat.
Use the following check list prior to contacting a licensed and qualified hvac service technician.
If it leaks the lack of pressure will make it absorb more heat than it should.
Many times a clogged air filter is the reason behind frozen cooling coils.
Frozen ac coils are caused by refrigerant leaks.
Warm air from the surroundings of the ac is used to keep the air above the freezing point to avoid the condensed water from freezing on the coil.
If you have a frozen compressor you have a frozen evaporator.
Your air handler s blower or fan blows air over your evaporator coils which absorb the air s heat and humidity.
If you have a frozen air conditioning coil there are a few steps you should take to troubleshoot the problem before calling an hvac repair company.
You can find your evaporator coil in your indoor air handler system.
Coil design closer fins will freeze faster.
See this energy gov graphic for a recap of how your a c works.